Front-end: Implement 2nd task of issue #400; precision of result and operation.

From the ES spec + Bugzilla 15931 and GL_KHR_vulkan_glsl:
- Update precision qualifiers for all built-in function prototypes.
- Implement the new algorithm used to distinguish built-in function
  operation precisions from result precisions.
Also add tracking of separate result and operation precisions, and
use that in generating SPIR-V.
(SPIR-V cares about precision of operation, while the front-end
cares about precision of result, for propagation.)

Test/baseResults/100.frag.out

@@ -241,7 +241,7 @@ ERROR: node is still EOpNull!
 0:122        'sExt' (uniform lowp samplerExternalOES)
 0:122        Construct vec3 (temp lowp 3-component vector of float)
 0:122          'f13' (invariant global mediump float)
-0:123      textureProj (global lowp 4-component vector of float)
+0:123      textureProj (global lowp 4-component vector of float, operation at mediump)
 0:123        'sExt' (uniform lowp samplerExternalOES)
 0:123        direct index (smooth temp mediump 4-component vector of float)
 0:123          'v' (smooth in 3-element array of mediump 4-component vector of float)
@@ -278,7 +278,7 @@ ERROR: node is still EOpNull!
 0:145      'a' (in mediump int)
 0:145      'b' (in mediump float)
 0:147    Sequence
-0:147      textureProjGrad (global lowp 4-component vector of float)
+0:147      textureProjGrad (global lowp 4-component vector of float, operation at mediump)
 0:147        's2Dg' (uniform lowp sampler2D)
 0:147        Construct vec3 (temp mediump 3-component vector of float)
 0:147          'f13' (invariant global mediump float)
@@ -299,17 +299,17 @@ ERROR: node is still EOpNull!
 0:158  Function Definition: foo323433( (global void)
 0:158    Function Parameters: 
 0:160    Sequence
-0:160      textureLod (global lowp 4-component vector of float)
+0:160      textureLod (global lowp 4-component vector of float, operation at mediump)
 0:160        's2Dg' (uniform lowp sampler2D)
 0:160        'uv2' (invariant uniform mediump 2-component vector of float)
 0:160        'f13' (invariant global mediump float)
-0:161      textureProjGrad (global lowp 4-component vector of float)
+0:161      textureProjGrad (global lowp 4-component vector of float, operation at mediump)
 0:161        's2Dg' (uniform lowp sampler2D)
 0:161        Construct vec3 (temp mediump 3-component vector of float)
 0:161          'f13' (invariant global mediump float)
 0:161        'uv2' (invariant uniform mediump 2-component vector of float)
 0:161        'uv2' (invariant uniform mediump 2-component vector of float)
-0:162      textureGrad (global lowp 4-component vector of float)
+0:162      textureGrad (global lowp 4-component vector of float, operation at mediump)
 0:162        's2Dg' (uniform lowp sampler2D)
 0:162        'uv2' (invariant uniform mediump 2-component vector of float)
 0:162        'uv2' (invariant uniform mediump 2-component vector of float)
@@ -579,7 +579,7 @@ ERROR: node is still EOpNull!
 0:122        'sExt' (uniform lowp samplerExternalOES)
 0:122        Construct vec3 (temp lowp 3-component vector of float)
 0:122          'f13' (invariant global mediump float)
-0:123      textureProj (global lowp 4-component vector of float)
+0:123      textureProj (global lowp 4-component vector of float, operation at mediump)
 0:123        'sExt' (uniform lowp samplerExternalOES)
 0:123        direct index (smooth temp mediump 4-component vector of float)
 0:123          'v' (smooth in 3-element array of mediump 4-component vector of float)
@@ -616,7 +616,7 @@ ERROR: node is still EOpNull!
 0:145      'a' (in mediump int)
 0:145      'b' (in mediump float)
 0:147    Sequence
-0:147      textureProjGrad (global lowp 4-component vector of float)
+0:147      textureProjGrad (global lowp 4-component vector of float, operation at mediump)
 0:147        's2Dg' (uniform lowp sampler2D)
 0:147        Construct vec3 (temp mediump 3-component vector of float)
 0:147          'f13' (invariant global mediump float)
@@ -637,17 +637,17 @@ ERROR: node is still EOpNull!
 0:158  Function Definition: foo323433( (global void)
 0:158    Function Parameters: 
 0:160    Sequence
-0:160      textureLod (global lowp 4-component vector of float)
+0:160      textureLod (global lowp 4-component vector of float, operation at mediump)
 0:160        's2Dg' (uniform lowp sampler2D)
 0:160        'uv2' (invariant uniform mediump 2-component vector of float)
 0:160        'f13' (invariant global mediump float)
-0:161      textureProjGrad (global lowp 4-component vector of float)
+0:161      textureProjGrad (global lowp 4-component vector of float, operation at mediump)
 0:161        's2Dg' (uniform lowp sampler2D)
 0:161        Construct vec3 (temp mediump 3-component vector of float)
 0:161          'f13' (invariant global mediump float)
 0:161        'uv2' (invariant uniform mediump 2-component vector of float)
 0:161        'uv2' (invariant uniform mediump 2-component vector of float)
-0:162      textureGrad (global lowp 4-component vector of float)
+0:162      textureGrad (global lowp 4-component vector of float, operation at mediump)
 0:162        's2Dg' (uniform lowp sampler2D)
 0:162        'uv2' (invariant uniform mediump 2-component vector of float)
 0:162        'uv2' (invariant uniform mediump 2-component vector of float)

Test/baseResults/300.frag.out

@@ -72,20 +72,20 @@ ERROR: node is still EOpNull!
 0:59            1.200000
 0:60      move second child to first child (temp lowp float)
 0:60        'f' (temp lowp float)
-0:60        textureOffset (global lowp float)
+0:60        textureOffset (global lowp float, operation at mediump)
 0:60          's2DShadow' (uniform lowp sampler2DShadow)
 0:60          'c3D' (smooth in lowp 3-component vector of float)
 0:60          'ic2D' (flat in mediump 2-component vector of int)
 0:60          'c1D' (smooth in lowp float)
 0:61      move second child to first child (temp lowp 4-component vector of float)
 0:61        'v' (temp lowp 4-component vector of float)
-0:61        textureFetch (global lowp 4-component vector of float)
+0:61        textureFetch (global lowp 4-component vector of float, operation at mediump)
 0:61          's3D' (uniform lowp sampler3D)
 0:61          'ic3D' (flat in mediump 3-component vector of int)
 0:61          'ic1D' (flat in mediump int)
 0:62      move second child to first child (temp lowp 4-component vector of float)
 0:62        'v' (temp lowp 4-component vector of float)
-0:62        textureFetchOffset (global lowp 4-component vector of float)
+0:62        textureFetchOffset (global lowp 4-component vector of float, operation at mediump)
 0:62          direct index (temp lowp sampler2D)
 0:62            'arrayedSampler' (uniform 5-element array of lowp sampler2D)
 0:62            Constant:
@@ -96,14 +96,14 @@ ERROR: node is still EOpNull!
 0:62          'ic2D' (flat in mediump 2-component vector of int)
 0:63      move second child to first child (temp lowp float)
 0:63        'f' (temp lowp float)
-0:63        textureLodOffset (global lowp float)
+0:63        textureLodOffset (global lowp float, operation at mediump)
 0:63          's2DShadow' (uniform lowp sampler2DShadow)
 0:63          'c3D' (smooth in lowp 3-component vector of float)
 0:63          'c1D' (smooth in lowp float)
 0:63          'ic2D' (flat in mediump 2-component vector of int)
 0:64      move second child to first child (temp lowp 4-component vector of float)
 0:64        'v' (temp lowp 4-component vector of float)
-0:64        textureProjLodOffset (global lowp 4-component vector of float)
+0:64        textureProjLodOffset (global lowp 4-component vector of float, operation at mediump)
 0:64          's2D' (uniform lowp sampler2D)
 0:64          'c3D' (smooth in lowp 3-component vector of float)
 0:64          'c1D' (smooth in lowp float)
@@ -117,7 +117,7 @@ ERROR: node is still EOpNull!
 0:65          'c3D' (smooth in lowp 3-component vector of float)
 0:66      move second child to first child (temp lowp float)
 0:66        'f' (temp lowp float)
-0:66        textureGradOffset (global lowp float)
+0:66        textureGradOffset (global lowp float, operation at mediump)
 0:66          's2DArrayShadow' (uniform lowp sampler2DArrayShadow)
 0:66          'c4D' (smooth temp lowp 4-component vector of float)
 0:66          'c2D' (smooth in lowp 2-component vector of float)
@@ -132,7 +132,7 @@ ERROR: node is still EOpNull!
 0:67          'c3D' (smooth in lowp 3-component vector of float)
 0:68      move second child to first child (temp lowp 4-component vector of float)
 0:68        'v' (temp lowp 4-component vector of float)
-0:68        textureProjGradOffset (global lowp 4-component vector of float)
+0:68        textureProjGradOffset (global lowp 4-component vector of float, operation at mediump)
 0:68          's2D' (uniform lowp sampler2D)
 0:68          'c3D' (smooth in lowp 3-component vector of float)
 0:68          'c2D' (smooth in lowp 2-component vector of float)
@@ -152,7 +152,7 @@ ERROR: node is still EOpNull!
 0:72          'c2D' (smooth in lowp 2-component vector of float)
 0:73      move second child to first child (temp mediump 4-component vector of int)
 0:73        'iv' (temp mediump 4-component vector of int)
-0:73        textureProjOffset (global lowp 4-component vector of int)
+0:73        textureProjOffset (global lowp 4-component vector of int, operation at mediump)
 0:73          'is2D' (uniform lowp isampler2D)
 0:73          'c4D' (smooth temp lowp 4-component vector of float)
 0:73          'ic2D' (flat in mediump 2-component vector of int)
@@ -184,7 +184,7 @@ ERROR: node is still EOpNull!
 0:77          'c1D' (smooth in lowp float)
 0:78      move second child to first child (temp mediump 4-component vector of int)
 0:78        'iv' (temp mediump 4-component vector of int)
-0:78        textureFetch (global lowp 4-component vector of int)
+0:78        textureFetch (global lowp 4-component vector of int, operation at mediump)
 0:78          'is2DArray' (uniform lowp isampler2DArray)
 0:78          'ic3D' (flat in mediump 3-component vector of int)
 0:78          'ic1D' (flat in mediump int)
@@ -196,7 +196,7 @@ ERROR: node is still EOpNull!
 0:80              0 (const int)
 0:80            Constant:
 0:80              1 (const int)
-0:80        textureSize (global highp 2-component vector of int)
+0:80        textureSize (global highp 2-component vector of int, operation at lowp)
 0:80          'sCubeShadow' (uniform lowp samplerCubeShadow)
 0:80          Constant:
 0:80            2 (const int)
@@ -428,20 +428,20 @@ ERROR: node is still EOpNull!
 0:59            1.200000
 0:60      move second child to first child (temp lowp float)
 0:60        'f' (temp lowp float)
-0:60        textureOffset (global lowp float)
+0:60        textureOffset (global lowp float, operation at mediump)
 0:60          's2DShadow' (uniform lowp sampler2DShadow)
 0:60          'c3D' (smooth in lowp 3-component vector of float)
 0:60          'ic2D' (flat in mediump 2-component vector of int)
 0:60          'c1D' (smooth in lowp float)
 0:61      move second child to first child (temp lowp 4-component vector of float)
 0:61        'v' (temp lowp 4-component vector of float)
-0:61        textureFetch (global lowp 4-component vector of float)
+0:61        textureFetch (global lowp 4-component vector of float, operation at mediump)
 0:61          's3D' (uniform lowp sampler3D)
 0:61          'ic3D' (flat in mediump 3-component vector of int)
 0:61          'ic1D' (flat in mediump int)
 0:62      move second child to first child (temp lowp 4-component vector of float)
 0:62        'v' (temp lowp 4-component vector of float)
-0:62        textureFetchOffset (global lowp 4-component vector of float)
+0:62        textureFetchOffset (global lowp 4-component vector of float, operation at mediump)
 0:62          direct index (temp lowp sampler2D)
 0:62            'arrayedSampler' (uniform 5-element array of lowp sampler2D)
 0:62            Constant:
@@ -452,14 +452,14 @@ ERROR: node is still EOpNull!
 0:62          'ic2D' (flat in mediump 2-component vector of int)
 0:63      move second child to first child (temp lowp float)
 0:63        'f' (temp lowp float)
-0:63        textureLodOffset (global lowp float)
+0:63        textureLodOffset (global lowp float, operation at mediump)
 0:63          's2DShadow' (uniform lowp sampler2DShadow)
 0:63          'c3D' (smooth in lowp 3-component vector of float)
 0:63          'c1D' (smooth in lowp float)
 0:63          'ic2D' (flat in mediump 2-component vector of int)
 0:64      move second child to first child (temp lowp 4-component vector of float)
 0:64        'v' (temp lowp 4-component vector of float)
-0:64        textureProjLodOffset (global lowp 4-component vector of float)
+0:64        textureProjLodOffset (global lowp 4-component vector of float, operation at mediump)
 0:64          's2D' (uniform lowp sampler2D)
 0:64          'c3D' (smooth in lowp 3-component vector of float)
 0:64          'c1D' (smooth in lowp float)
@@ -473,7 +473,7 @@ ERROR: node is still EOpNull!
 0:65          'c3D' (smooth in lowp 3-component vector of float)
 0:66      move second child to first child (temp lowp float)
 0:66        'f' (temp lowp float)
-0:66        textureGradOffset (global lowp float)
+0:66        textureGradOffset (global lowp float, operation at mediump)
 0:66          's2DArrayShadow' (uniform lowp sampler2DArrayShadow)
 0:66          'c4D' (smooth temp lowp 4-component vector of float)
 0:66          'c2D' (smooth in lowp 2-component vector of float)
@@ -488,7 +488,7 @@ ERROR: node is still EOpNull!
 0:67          'c3D' (smooth in lowp 3-component vector of float)
 0:68      move second child to first child (temp lowp 4-component vector of float)
 0:68        'v' (temp lowp 4-component vector of float)
-0:68        textureProjGradOffset (global lowp 4-component vector of float)
+0:68        textureProjGradOffset (global lowp 4-component vector of float, operation at mediump)
 0:68          's2D' (uniform lowp sampler2D)
 0:68          'c3D' (smooth in lowp 3-component vector of float)
 0:68          'c2D' (smooth in lowp 2-component vector of float)
@@ -508,7 +508,7 @@ ERROR: node is still EOpNull!
 0:72          'c2D' (smooth in lowp 2-component vector of float)
 0:73      move second child to first child (temp mediump 4-component vector of int)
 0:73        'iv' (temp mediump 4-component vector of int)
-0:73        textureProjOffset (global lowp 4-component vector of int)
+0:73        textureProjOffset (global lowp 4-component vector of int, operation at mediump)
 0:73          'is2D' (uniform lowp isampler2D)
 0:73          'c4D' (smooth temp lowp 4-component vector of float)
 0:73          'ic2D' (flat in mediump 2-component vector of int)
@@ -540,7 +540,7 @@ ERROR: node is still EOpNull!
 0:77          'c1D' (smooth in lowp float)
 0:78      move second child to first child (temp mediump 4-component vector of int)
 0:78        'iv' (temp mediump 4-component vector of int)
-0:78        textureFetch (global lowp 4-component vector of int)
+0:78        textureFetch (global lowp 4-component vector of int, operation at mediump)
 0:78          'is2DArray' (uniform lowp isampler2DArray)
 0:78          'ic3D' (flat in mediump 3-component vector of int)
 0:78          'ic1D' (flat in mediump int)
@@ -552,7 +552,7 @@ ERROR: node is still EOpNull!
 0:80              0 (const int)
 0:80            Constant:
 0:80              1 (const int)
-0:80        textureSize (global highp 2-component vector of int)
+0:80        textureSize (global highp 2-component vector of int, operation at lowp)
 0:80          'sCubeShadow' (uniform lowp samplerCubeShadow)
 0:80          Constant:
 0:80            2 (const int)

Test/baseResults/300.vert.out

@@ -175,7 +175,7 @@ ERROR: node is still EOpNull!
 0:120      Sequence
 0:120        move second child to first child (temp highp 2-component vector of int)
 0:120          'x1' (temp highp 2-component vector of int)
-0:120          textureSize (global highp 2-component vector of int)
+0:120          textureSize (global highp 2-component vector of int, operation at lowp)
 0:120            's2D' (uniform lowp sampler2D)
 0:120            Constant:
 0:120              2 (const int)
@@ -184,7 +184,7 @@ ERROR: node is still EOpNull!
 0:122      Sequence
 0:122        move second child to first child (temp highp 3-component vector of int)
 0:122          'x3' (temp highp 3-component vector of int)
-0:122          textureSize (global highp 3-component vector of int)
+0:122          textureSize (global highp 3-component vector of int, operation at lowp)
 0:122            's2DAS' (uniform lowp sampler2DArrayShadow)
 0:122            Constant:
 0:122              -1 (const int)
@@ -193,7 +193,7 @@ ERROR: node is still EOpNull!
 0:124      Sequence
 0:124        move second child to first child (temp highp 4-component vector of float)
 0:124          'x4' (temp highp 4-component vector of float)
-0:124          texture (global lowp 4-component vector of float)
+0:124          texture (global lowp 4-component vector of float, operation at highp)
 0:124            's2D' (uniform lowp sampler2D)
 0:124            'c2D' (in highp 2-component vector of float)
 0:125      Constant:
@@ -217,7 +217,7 @@ ERROR: node is still EOpNull!
 0:128      Sequence
 0:128        move second child to first child (temp highp float)
 0:128          'x6' (temp highp float)
-0:128          textureProjGradOffset (global lowp float)
+0:128          textureProjGradOffset (global lowp float, operation at highp)
 0:128            's2DS' (uniform lowp sampler2DShadow)
 0:128            'invIn' (invariant in highp 4-component vector of float)
 0:128            Constant:
@@ -459,7 +459,7 @@ ERROR: node is still EOpNull!
 0:120      Sequence
 0:120        move second child to first child (temp highp 2-component vector of int)
 0:120          'x1' (temp highp 2-component vector of int)
-0:120          textureSize (global highp 2-component vector of int)
+0:120          textureSize (global highp 2-component vector of int, operation at lowp)
 0:120            's2D' (uniform lowp sampler2D)
 0:120            Constant:
 0:120              2 (const int)
@@ -468,7 +468,7 @@ ERROR: node is still EOpNull!
 0:122      Sequence
 0:122        move second child to first child (temp highp 3-component vector of int)
 0:122          'x3' (temp highp 3-component vector of int)
-0:122          textureSize (global highp 3-component vector of int)
+0:122          textureSize (global highp 3-component vector of int, operation at lowp)
 0:122            's2DAS' (uniform lowp sampler2DArrayShadow)
 0:122            Constant:
 0:122              -1 (const int)
@@ -477,7 +477,7 @@ ERROR: node is still EOpNull!
 0:124      Sequence
 0:124        move second child to first child (temp highp 4-component vector of float)
 0:124          'x4' (temp highp 4-component vector of float)
-0:124          texture (global lowp 4-component vector of float)
+0:124          texture (global lowp 4-component vector of float, operation at highp)
 0:124            's2D' (uniform lowp sampler2D)
 0:124            'c2D' (in highp 2-component vector of float)
 0:125      Constant:
@@ -501,7 +501,7 @@ ERROR: node is still EOpNull!
 0:128      Sequence
 0:128        move second child to first child (temp highp float)
 0:128          'x6' (temp highp float)
-0:128          textureProjGradOffset (global lowp float)
+0:128          textureProjGradOffset (global lowp float, operation at highp)
 0:128            's2DS' (uniform lowp sampler2DShadow)
 0:128            'invIn' (invariant in highp 4-component vector of float)
 0:128            Constant:

Test/baseResults/300BuiltIns.frag.out

@@ -128,12 +128,12 @@ ERROR: node is still EOpNull!
 0:52      Sequence
 0:52        move second child to first child (temp 2-component vector of bool)
 0:52          'b10' (temp 2-component vector of bool)
-0:52          isnan (global 2-component vector of bool)
+0:52          isnan (global 2-component vector of bool, operation at mediump)
 0:52            'v2a' (global mediump 2-component vector of float)
 0:53      Sequence
 0:53        move second child to first child (temp 4-component vector of bool)
 0:53          'b11' (temp 4-component vector of bool)
-0:53          isinf (global 4-component vector of bool)
+0:53          isinf (global 4-component vector of bool, operation at mediump)
 0:53            'v4' (global mediump 4-component vector of float)
 0:56      Sequence
 0:56        move second child to first child (temp highp int)
@@ -158,17 +158,17 @@ ERROR: node is still EOpNull!
 0:62      Sequence
 0:62        move second child to first child (temp highp uint)
 0:62          'u19' (temp mediump uint)
-0:62          packSnorm2x16 (global highp uint)
+0:62          packSnorm2x16 (global highp uint, operation at mediump)
 0:62            'v2a' (global mediump 2-component vector of float)
 0:63      Sequence
-0:63        move second child to first child (temp mediump 2-component vector of float)
+0:63        move second child to first child (temp highp 2-component vector of float)
 0:63          'v20' (temp mediump 2-component vector of float)
-0:63          unpackSnorm2x16 (global mediump 2-component vector of float)
+0:63          unpackSnorm2x16 (global highp 2-component vector of float)
 0:63            'uy' (global mediump uint)
 0:64      Sequence
 0:64        move second child to first child (temp highp uint)
 0:64          'u15' (temp mediump uint)
-0:64          packUnorm2x16 (global highp uint)
+0:64          packUnorm2x16 (global highp uint, operation at mediump)
 0:64            'v2a' (global mediump 2-component vector of float)
 0:65      Sequence
 0:65        move second child to first child (temp highp 2-component vector of float)
@@ -178,12 +178,12 @@ ERROR: node is still EOpNull!
 0:66      Sequence
 0:66        move second child to first child (temp highp uint)
 0:66          'u17' (temp mediump uint)
-0:66          packHalf2x16 (global highp uint)
+0:66          packHalf2x16 (global highp uint, operation at mediump)
 0:66            'v2b' (global mediump 2-component vector of float)
 0:67      Sequence
 0:67        move second child to first child (temp mediump 2-component vector of float)
 0:67          'v18' (temp mediump 2-component vector of float)
-0:67          unpackHalf2x16 (global mediump 2-component vector of float)
+0:67          unpackHalf2x16 (global mediump 2-component vector of float, operation at highp)
 0:67            'uy' (global mediump uint)
 0:70      Constant:
 0:70        0.000000
@@ -335,12 +335,12 @@ ERROR: node is still EOpNull!
 0:52      Sequence
 0:52        move second child to first child (temp 2-component vector of bool)
 0:52          'b10' (temp 2-component vector of bool)
-0:52          isnan (global 2-component vector of bool)
+0:52          isnan (global 2-component vector of bool, operation at mediump)
 0:52            'v2a' (global mediump 2-component vector of float)
 0:53      Sequence
 0:53        move second child to first child (temp 4-component vector of bool)
 0:53          'b11' (temp 4-component vector of bool)
-0:53          isinf (global 4-component vector of bool)
+0:53          isinf (global 4-component vector of bool, operation at mediump)
 0:53            'v4' (global mediump 4-component vector of float)
 0:56      Sequence
 0:56        move second child to first child (temp highp int)
@@ -365,17 +365,17 @@ ERROR: node is still EOpNull!
 0:62      Sequence
 0:62        move second child to first child (temp highp uint)
 0:62          'u19' (temp mediump uint)
-0:62          packSnorm2x16 (global highp uint)
+0:62          packSnorm2x16 (global highp uint, operation at mediump)
 0:62            'v2a' (global mediump 2-component vector of float)
 0:63      Sequence
-0:63        move second child to first child (temp mediump 2-component vector of float)
+0:63        move second child to first child (temp highp 2-component vector of float)
 0:63          'v20' (temp mediump 2-component vector of float)
-0:63          unpackSnorm2x16 (global mediump 2-component vector of float)
+0:63          unpackSnorm2x16 (global highp 2-component vector of float)
 0:63            'uy' (global mediump uint)
 0:64      Sequence
 0:64        move second child to first child (temp highp uint)
 0:64          'u15' (temp mediump uint)
-0:64          packUnorm2x16 (global highp uint)
+0:64          packUnorm2x16 (global highp uint, operation at mediump)
 0:64            'v2a' (global mediump 2-component vector of float)
 0:65      Sequence
 0:65        move second child to first child (temp highp 2-component vector of float)
@@ -385,12 +385,12 @@ ERROR: node is still EOpNull!
 0:66      Sequence
 0:66        move second child to first child (temp highp uint)
 0:66          'u17' (temp mediump uint)
-0:66          packHalf2x16 (global highp uint)
+0:66          packHalf2x16 (global highp uint, operation at mediump)
 0:66            'v2b' (global mediump 2-component vector of float)
 0:67      Sequence
 0:67        move second child to first child (temp mediump 2-component vector of float)
 0:67          'v18' (temp mediump 2-component vector of float)
-0:67          unpackHalf2x16 (global mediump 2-component vector of float)
+0:67          unpackHalf2x16 (global mediump 2-component vector of float, operation at highp)
 0:67            'uy' (global mediump uint)
 0:70      Constant:
 0:70        0.000000

Test/baseResults/310.comp.out

@@ -122,7 +122,7 @@ ERROR: node is still EOpNull!
 0:61            2 (const int)
 0:61        Constant:
 0:61          4.700000
-0:62      array length (temp highp int)
+0:62      array length (temp int)
 0:62        values: direct index for structure (layout(column_major shared ) buffer implicitly-sized array of highp float)
 0:62          'ro' (layout(column_major shared ) readonly buffer block{layout(column_major shared ) buffer highp int value, layout(column_major shared ) buffer implicitly-sized array of highp float values})
 0:62          Constant:
@@ -178,9 +178,9 @@ ERROR: node is still EOpNull!
 0:92          0 (const int)
 0:92          0 (const int)
 0:92          0 (const int)
-0:93      imageLoad (global highp 4-component vector of float)
+0:93      imageLoad (global mediump 4-component vector of float)
 0:93        'img2Drgba' (layout(rgba32f ) readonly uniform mediump image2D)
-0:93        Construct ivec2 (temp highp 2-component vector of int)
+0:93        Construct ivec2 (temp mediump 2-component vector of int)
 0:93          'i' (temp highp int)
 0:93          'i' (temp highp int)
 0:94      imageLoad (global highp 4-component vector of int)
@@ -549,7 +549,7 @@ ERROR: node is still EOpNull!
 0:61            2 (const int)
 0:61        Constant:
 0:61          4.700000
-0:62      array length (temp highp int)
+0:62      array length (temp int)
 0:62        values: direct index for structure (layout(column_major shared ) buffer implicitly-sized array of highp float)
 0:62          'ro' (layout(column_major shared ) readonly buffer block{layout(column_major shared ) buffer highp int value, layout(column_major shared ) buffer implicitly-sized array of highp float values})
 0:62          Constant:
@@ -605,9 +605,9 @@ ERROR: node is still EOpNull!
 0:92          0 (const int)
 0:92          0 (const int)
 0:92          0 (const int)
-0:93      imageLoad (global highp 4-component vector of float)
+0:93      imageLoad (global mediump 4-component vector of float)
 0:93        'img2Drgba' (layout(rgba32f ) readonly uniform mediump image2D)
-0:93        Construct ivec2 (temp highp 2-component vector of int)
+0:93        Construct ivec2 (temp mediump 2-component vector of int)
 0:93          'i' (temp highp int)
 0:93          'i' (temp highp int)
 0:94      imageLoad (global highp 4-component vector of int)

Test/baseResults/310.frag.out

@@ -353,7 +353,7 @@ ERROR: node is still EOpNull!
 0:101              3 (const int)
 0:102      move second child to first child (temp highp 2-component vector of int)
 0:102        'v2' (temp highp 2-component vector of int)
-0:102        textureSize (global highp 2-component vector of int)
+0:102        textureSize (global highp 2-component vector of int, operation at mediump)
 0:102          's2dms' (uniform mediump sampler2DMS)
 0:103      move second child to first child (temp highp 2-component vector of int)
 0:103        'v2' (temp highp 2-component vector of int)
@@ -361,19 +361,19 @@ ERROR: node is still EOpNull!
 0:103          'i2D' (layout(binding=2 ) writeonly uniform highp image2D)
 0:104      move second child to first child (temp highp 3-component vector of int)
 0:104        'v3' (temp highp 3-component vector of int)
-0:104        imageQuerySize (global highp 3-component vector of int)
+0:104        imageQuerySize (global highp 3-component vector of int, operation at mediump)
 0:104          'i3D' (layout(binding=4 ) readonly uniform mediump image3D)
 0:105      move second child to first child (temp highp 2-component vector of int)
 0:105        'v2' (temp highp 2-component vector of int)
-0:105        imageQuerySize (global highp 2-component vector of int)
+0:105        imageQuerySize (global highp 2-component vector of int, operation at mediump)
 0:105          'iCube' (layout(binding=5 ) uniform mediump imageCube)
 0:106      move second child to first child (temp highp 3-component vector of int)
 0:106        'v3' (temp highp 3-component vector of int)
-0:106        imageQuerySize (global highp 3-component vector of int)
+0:106        imageQuerySize (global highp 3-component vector of int, operation at mediump)
 0:106          'i2DA' (layout(binding=6 ) uniform mediump image2DArray)
 0:107      move second child to first child (temp highp 2-component vector of int)
 0:107        'v2' (temp highp 2-component vector of int)
-0:107        imageQuerySize (global highp 2-component vector of int)
+0:107        imageQuerySize (global highp 2-component vector of int, operation at mediump)
 0:107          'i2Dqualified' (layout(binding=6 ) coherent volatile restrict uniform mediump image2D)
 0:165  Function Definition: fooIO( (global void)
 0:165    Function Parameters: 
@@ -1234,7 +1234,7 @@ ERROR: node is still EOpNull!
 0:101              3 (const int)
 0:102      move second child to first child (temp highp 2-component vector of int)
 0:102        'v2' (temp highp 2-component vector of int)
-0:102        textureSize (global highp 2-component vector of int)
+0:102        textureSize (global highp 2-component vector of int, operation at mediump)
 0:102          's2dms' (uniform mediump sampler2DMS)
 0:103      move second child to first child (temp highp 2-component vector of int)
 0:103        'v2' (temp highp 2-component vector of int)
@@ -1242,19 +1242,19 @@ ERROR: node is still EOpNull!
 0:103          'i2D' (layout(binding=2 ) writeonly uniform highp image2D)
 0:104      move second child to first child (temp highp 3-component vector of int)
 0:104        'v3' (temp highp 3-component vector of int)
-0:104        imageQuerySize (global highp 3-component vector of int)
+0:104        imageQuerySize (global highp 3-component vector of int, operation at mediump)
 0:104          'i3D' (layout(binding=4 ) readonly uniform mediump image3D)
 0:105      move second child to first child (temp highp 2-component vector of int)
 0:105        'v2' (temp highp 2-component vector of int)
-0:105        imageQuerySize (global highp 2-component vector of int)
+0:105        imageQuerySize (global highp 2-component vector of int, operation at mediump)
 0:105          'iCube' (layout(binding=5 ) uniform mediump imageCube)
 0:106      move second child to first child (temp highp 3-component vector of int)
 0:106        'v3' (temp highp 3-component vector of int)
-0:106        imageQuerySize (global highp 3-component vector of int)
+0:106        imageQuerySize (global highp 3-component vector of int, operation at mediump)
 0:106          'i2DA' (layout(binding=6 ) uniform mediump image2DArray)
 0:107      move second child to first child (temp highp 2-component vector of int)
 0:107        'v2' (temp highp 2-component vector of int)
-0:107        imageQuerySize (global highp 2-component vector of int)
+0:107        imageQuerySize (global highp 2-component vector of int, operation at mediump)
 0:107          'i2Dqualified' (layout(binding=6 ) coherent volatile restrict uniform mediump image2D)
 0:165  Function Definition: fooIO( (global void)
 0:165    Function Parameters: 

Test/baseResults/310.vert.out

@@ -125,12 +125,12 @@ ERROR: node is still EOpNull!
 0:17          'u1' (temp highp uint)
 0:17          'u1' (temp highp uint)
 0:17          'u1' (temp highp uint)
-0:19      uMulExtended (global void)
+0:19      uMulExtended (global highp void)
 0:19        'u4' (temp highp 4-component vector of uint)
 0:19        'u4' (temp highp 4-component vector of uint)
 0:19        'u4' (temp highp 4-component vector of uint)
 0:19        'u4' (temp highp 4-component vector of uint)
-0:21      iMulExtended (global void)
+0:21      iMulExtended (global highp void)
 0:21        'i4' (temp highp 4-component vector of int)
 0:21        'i4' (temp highp 4-component vector of int)
 0:21        'i4' (temp highp 4-component vector of int)
@@ -179,27 +179,27 @@ ERROR: node is still EOpNull!
 0:31          'u4' (temp highp 4-component vector of uint)
 0:32      move second child to first child (temp highp int)
 0:32        'i1' (temp highp int)
-0:32        bitCount (global highp int)
+0:32        bitCount (global lowp int, operation at highp)
 0:32          'i1' (temp highp int)
 0:33      move second child to first child (temp highp 3-component vector of int)
 0:33        'i3' (temp highp 3-component vector of int)
-0:33        bitCount (global highp 3-component vector of int)
+0:33        bitCount (global lowp 3-component vector of int, operation at highp)
 0:33          'u3' (temp highp 3-component vector of uint)
 0:34      move second child to first child (temp highp 2-component vector of int)
 0:34        'i2' (temp highp 2-component vector of int)
-0:34        findLSB (global highp 2-component vector of int)
+0:34        findLSB (global lowp 2-component vector of int, operation at highp)
 0:34          'i2' (temp highp 2-component vector of int)
 0:35      move second child to first child (temp highp 4-component vector of int)
 0:35        'i4' (temp highp 4-component vector of int)
-0:35        findLSB (global highp 4-component vector of int)
+0:35        findLSB (global lowp 4-component vector of int, operation at highp)
 0:35          'u4' (temp highp 4-component vector of uint)
 0:36      move second child to first child (temp highp int)
 0:36        'i1' (temp highp int)
-0:36        findMSB (global highp int)
+0:36        findMSB (global lowp int, operation at highp)
 0:36          'i1' (temp highp int)
 0:37      move second child to first child (temp highp 2-component vector of int)
 0:37        'i2' (temp highp 2-component vector of int)
-0:37        findMSB (global highp 2-component vector of int)
+0:37        findMSB (global lowp 2-component vector of int, operation at highp)
 0:37          'u2' (temp highp 2-component vector of uint)
 0:40      move second child to first child (temp highp 3-component vector of float)
 0:40        'v3' (temp highp 3-component vector of float)
@@ -213,19 +213,19 @@ ERROR: node is still EOpNull!
 0:42          'i2' (temp highp 2-component vector of int)
 0:45      move second child to first child (temp highp uint)
 0:45        'u1' (temp highp uint)
-0:45        PackUnorm4x8 (global highp uint)
+0:45        PackUnorm4x8 (global highp uint, operation at mediump)
 0:45          'v4' (temp mediump 4-component vector of float)
 0:46      move second child to first child (temp highp uint)
 0:46        'u1' (temp highp uint)
-0:46        PackSnorm4x8 (global highp uint)
+0:46        PackSnorm4x8 (global highp uint, operation at mediump)
 0:46          'v4' (temp mediump 4-component vector of float)
-0:47      move second child to first child (temp highp 4-component vector of float)
+0:47      move second child to first child (temp mediump 4-component vector of float)
 0:47        'v4' (temp mediump 4-component vector of float)
-0:47        UnpackUnorm4x8 (global highp 4-component vector of float)
+0:47        UnpackUnorm4x8 (global mediump 4-component vector of float, operation at highp)
 0:47          'u1' (temp highp uint)
-0:48      move second child to first child (temp highp 4-component vector of float)
+0:48      move second child to first child (temp mediump 4-component vector of float)
 0:48        'v4' (temp mediump 4-component vector of float)
-0:48        UnpackSnorm4x8 (global highp 4-component vector of float)
+0:48        UnpackSnorm4x8 (global mediump 4-component vector of float, operation at highp)
 0:48          'u1' (temp highp uint)
 0:60  Function Definition: foo( (global void)
 0:60    Function Parameters: 
@@ -340,7 +340,7 @@ ERROR: node is still EOpNull!
 0:165          0.100000
 0:165        Convert float to int (temp lowp 2-component vector of int)
 0:165          'inf' (in highp 2-component vector of float)
-0:166      textureGatherOffsets (global lowp 4-component vector of float)
+0:166      textureGatherOffsets (global lowp 4-component vector of float, operation at highp)
 0:166        direct index (temp lowp sampler2D)
 0:166          'sArray' (uniform 4-element array of lowp sampler2D)
 0:166          Constant:
@@ -404,7 +404,7 @@ ERROR: node is still EOpNull!
 0:180          0.100000
 0:180        Convert float to int (temp lowp 2-component vector of int)
 0:180          'inf' (in highp 2-component vector of float)
-0:181      textureGatherOffsets (global lowp 4-component vector of float)
+0:181      textureGatherOffsets (global lowp 4-component vector of float, operation at highp)
 0:181        direct index (temp lowp sampler2D)
 0:181          'sArray' (uniform 4-element array of lowp sampler2D)
 0:181          Constant:
@@ -421,7 +421,7 @@ ERROR: node is still EOpNull!
 0:181          0 (const int)
 0:181          0 (const int)
 0:181          0 (const int)
-0:182      textureGatherOffsets (global lowp 4-component vector of float)
+0:182      textureGatherOffsets (global lowp 4-component vector of float, operation at highp)
 0:182        direct index (temp lowp sampler2D)
 0:182          'sArray' (uniform 4-element array of lowp sampler2D)
 0:182          Constant:
@@ -1056,12 +1056,12 @@ ERROR: node is still EOpNull!
 0:17          'u1' (temp highp uint)
 0:17          'u1' (temp highp uint)
 0:17          'u1' (temp highp uint)
-0:19      uMulExtended (global void)
+0:19      uMulExtended (global highp void)
 0:19        'u4' (temp highp 4-component vector of uint)
 0:19        'u4' (temp highp 4-component vector of uint)
 0:19        'u4' (temp highp 4-component vector of uint)
 0:19        'u4' (temp highp 4-component vector of uint)
-0:21      iMulExtended (global void)
+0:21      iMulExtended (global highp void)
 0:21        'i4' (temp highp 4-component vector of int)
 0:21        'i4' (temp highp 4-component vector of int)
 0:21        'i4' (temp highp 4-component vector of int)
@@ -1110,27 +1110,27 @@ ERROR: node is still EOpNull!
 0:31          'u4' (temp highp 4-component vector of uint)
 0:32      move second child to first child (temp highp int)
 0:32        'i1' (temp highp int)
-0:32        bitCount (global highp int)
+0:32        bitCount (global lowp int, operation at highp)
 0:32          'i1' (temp highp int)
 0:33      move second child to first child (temp highp 3-component vector of int)
 0:33        'i3' (temp highp 3-component vector of int)
-0:33        bitCount (global highp 3-component vector of int)
+0:33        bitCount (global lowp 3-component vector of int, operation at highp)
 0:33          'u3' (temp highp 3-component vector of uint)
 0:34      move second child to first child (temp highp 2-component vector of int)
 0:34        'i2' (temp highp 2-component vector of int)
-0:34        findLSB (global highp 2-component vector of int)
+0:34        findLSB (global lowp 2-component vector of int, operation at highp)
 0:34          'i2' (temp highp 2-component vector of int)
 0:35      move second child to first child (temp highp 4-component vector of int)
 0:35        'i4' (temp highp 4-component vector of int)
-0:35        findLSB (global highp 4-component vector of int)
+0:35        findLSB (global lowp 4-component vector of int, operation at highp)
 0:35          'u4' (temp highp 4-component vector of uint)
 0:36      move second child to first child (temp highp int)
 0:36        'i1' (temp highp int)
-0:36        findMSB (global highp int)
+0:36        findMSB (global lowp int, operation at highp)
 0:36          'i1' (temp highp int)
 0:37      move second child to first child (temp highp 2-component vector of int)
 0:37        'i2' (temp highp 2-component vector of int)
-0:37        findMSB (global highp 2-component vector of int)
+0:37        findMSB (global lowp 2-component vector of int, operation at highp)
 0:37          'u2' (temp highp 2-component vector of uint)
 0:40      move second child to first child (temp highp 3-component vector of float)
 0:40        'v3' (temp highp 3-component vector of float)
@@ -1144,19 +1144,19 @@ ERROR: node is still EOpNull!
 0:42          'i2' (temp highp 2-component vector of int)
 0:45      move second child to first child (temp highp uint)
 0:45        'u1' (temp highp uint)
-0:45        PackUnorm4x8 (global highp uint)
+0:45        PackUnorm4x8 (global highp uint, operation at mediump)
 0:45          'v4' (temp mediump 4-component vector of float)
 0:46      move second child to first child (temp highp uint)
 0:46        'u1' (temp highp uint)
-0:46        PackSnorm4x8 (global highp uint)
+0:46        PackSnorm4x8 (global highp uint, operation at mediump)
 0:46          'v4' (temp mediump 4-component vector of float)
-0:47      move second child to first child (temp highp 4-component vector of float)
+0:47      move second child to first child (temp mediump 4-component vector of float)
 0:47        'v4' (temp mediump 4-component vector of float)
-0:47        UnpackUnorm4x8 (global highp 4-component vector of float)
+0:47        UnpackUnorm4x8 (global mediump 4-component vector of float, operation at highp)
 0:47          'u1' (temp highp uint)
-0:48      move second child to first child (temp highp 4-component vector of float)
+0:48      move second child to first child (temp mediump 4-component vector of float)
 0:48        'v4' (temp mediump 4-component vector of float)
-0:48        UnpackSnorm4x8 (global highp 4-component vector of float)
+0:48        UnpackSnorm4x8 (global mediump 4-component vector of float, operation at highp)
 0:48          'u1' (temp highp uint)
 0:60  Function Definition: foo( (global void)
 0:60    Function Parameters: 
@@ -1271,7 +1271,7 @@ ERROR: node is still EOpNull!
 0:165          0.100000
 0:165        Convert float to int (temp lowp 2-component vector of int)
 0:165          'inf' (in highp 2-component vector of float)
-0:166      textureGatherOffsets (global lowp 4-component vector of float)
+0:166      textureGatherOffsets (global lowp 4-component vector of float, operation at highp)
 0:166        direct index (temp lowp sampler2D)
 0:166          'sArray' (uniform 4-element array of lowp sampler2D)
 0:166          Constant:
@@ -1335,7 +1335,7 @@ ERROR: node is still EOpNull!
 0:180          0.100000
 0:180        Convert float to int (temp lowp 2-component vector of int)
 0:180          'inf' (in highp 2-component vector of float)
-0:181      textureGatherOffsets (global lowp 4-component vector of float)
+0:181      textureGatherOffsets (global lowp 4-component vector of float, operation at highp)
 0:181        direct index (temp lowp sampler2D)
 0:181          'sArray' (uniform 4-element array of lowp sampler2D)
 0:181          Constant:
@@ -1352,7 +1352,7 @@ ERROR: node is still EOpNull!
 0:181          0 (const int)
 0:181          0 (const int)
 0:181          0 (const int)
-0:182      textureGatherOffsets (global lowp 4-component vector of float)
+0:182      textureGatherOffsets (global lowp 4-component vector of float, operation at highp)
 0:182        direct index (temp lowp sampler2D)
 0:182          'sArray' (uniform 4-element array of lowp sampler2D)
 0:182          Constant:

Test/baseResults/310AofA.vert.out

@@ -310,7 +310,7 @@ ERROR: node is still EOpNull!
 0:96          1 (const int)
 0:98      Constant:
 0:98        7 (const int)
-0:99      array length (temp highp int)
+0:99      array length (temp int)
 0:99        v: direct index for structure (layout(column_major shared ) buffer implicitly-sized array of 7-element array of highp 4-component vector of float)
 0:99          direct index (layout(column_major shared ) temp block{layout(column_major shared ) buffer highp float u, layout(column_major shared ) buffer implicitly-sized array of 7-element array of highp 4-component vector of float v})
 0:99            'name3' (layout(column_major shared ) buffer 3-element array of block{layout(column_major shared ) buffer highp float u, layout(column_major shared ) buffer implicitly-sized array of 7-element array of highp 4-component vector of float v})
@@ -622,7 +622,7 @@ ERROR: node is still EOpNull!
 0:96          1 (const int)
 0:98      Constant:
 0:98        7 (const int)
-0:99      array length (temp highp int)
+0:99      array length (temp int)
 0:99        v: direct index for structure (layout(column_major shared ) buffer implicitly-sized array of 7-element array of highp 4-component vector of float)
 0:99          direct index (layout(column_major shared ) temp block{layout(column_major shared ) buffer highp float u, layout(column_major shared ) buffer implicitly-sized array of 7-element array of highp 4-component vector of float v})
 0:99            'name3' (layout(column_major shared ) buffer 3-element array of block{layout(column_major shared ) buffer highp float u, layout(column_major shared ) buffer implicitly-sized array of 7-element array of highp 4-component vector of float v})

Test/baseResults/pointCoord.frag.out

@@ -14,7 +14,7 @@ Shader version: 100
 0:9        true case
 0:10        move second child to first child (temp highp 4-component vector of float)
 0:10          'color' (temp highp 4-component vector of float)
-0:10          texture (global lowp 4-component vector of float)
+0:10          texture (global lowp 4-component vector of float, operation at mediump)
 0:10            'sampler' (uniform lowp sampler2D)
 0:10            'gl_PointCoord' (gl_PointCoord mediump 2-component vector of float PointCoord)
 0:9        false case
@@ -50,7 +50,7 @@ Shader version: 100
 0:9        true case
 0:10        move second child to first child (temp highp 4-component vector of float)
 0:10          'color' (temp highp 4-component vector of float)
-0:10          texture (global lowp 4-component vector of float)
+0:10          texture (global lowp 4-component vector of float, operation at mediump)
 0:10            'sampler' (uniform lowp sampler2D)
 0:10            'gl_PointCoord' (gl_PointCoord mediump 2-component vector of float PointCoord)
 0:9        false case

Test/baseResults/uint.frag.out

@@ -113,7 +113,7 @@ ERROR: node is still EOpNull!
 0:55        true case
 0:56        move second child to first child (temp mediump 4-component vector of uint)
 0:56          'c' (out mediump 4-component vector of uint)
-0:56          texture (global lowp 4-component vector of uint)
+0:56          texture (global lowp 4-component vector of uint, operation at highp)
 0:56            'usampler' (uniform lowp usampler2D)
 0:56            'tc' (smooth in highp 2-component vector of float)
 0:57      Test condition and select (temp void)
@@ -124,7 +124,7 @@ ERROR: node is still EOpNull!
 0:57        true case
 0:58        move second child to first child (temp mediump 4-component vector of uint)
 0:58          'c' (out mediump 4-component vector of uint)
-0:58          texture (global lowp 4-component vector of uint)
+0:58          texture (global lowp 4-component vector of uint, operation at highp)
 0:58            'usampler' (uniform lowp usampler2D)
 0:58            add (temp highp 2-component vector of float)
 0:58              'tc' (smooth in highp 2-component vector of float)
@@ -139,7 +139,7 @@ ERROR: node is still EOpNull!
 0:59        true case
 0:60        move second child to first child (temp mediump 4-component vector of uint)
 0:60          'c' (out mediump 4-component vector of uint)
-0:60          texture (global lowp 4-component vector of uint)
+0:60          texture (global lowp 4-component vector of uint, operation at highp)
 0:60            'usampler' (uniform lowp usampler2D)
 0:60            subtract (temp highp 2-component vector of float)
 0:60              'tc' (smooth in highp 2-component vector of float)
@@ -412,7 +412,7 @@ ERROR: node is still EOpNull!
 0:55        true case
 0:56        move second child to first child (temp mediump 4-component vector of uint)
 0:56          'c' (out mediump 4-component vector of uint)
-0:56          texture (global lowp 4-component vector of uint)
+0:56          texture (global lowp 4-component vector of uint, operation at highp)
 0:56            'usampler' (uniform lowp usampler2D)
 0:56            'tc' (smooth in highp 2-component vector of float)
 0:57      Test condition and select (temp void)
@@ -423,7 +423,7 @@ ERROR: node is still EOpNull!
 0:57        true case
 0:58        move second child to first child (temp mediump 4-component vector of uint)
 0:58          'c' (out mediump 4-component vector of uint)
-0:58          texture (global lowp 4-component vector of uint)
+0:58          texture (global lowp 4-component vector of uint, operation at highp)
 0:58            'usampler' (uniform lowp usampler2D)
 0:58            add (temp highp 2-component vector of float)
 0:58              'tc' (smooth in highp 2-component vector of float)
@@ -438,7 +438,7 @@ ERROR: node is still EOpNull!
 0:59        true case
 0:60        move second child to first child (temp mediump 4-component vector of uint)
 0:60          'c' (out mediump 4-component vector of uint)
-0:60          texture (global lowp 4-component vector of uint)
+0:60          texture (global lowp 4-component vector of uint, operation at highp)
 0:60            'usampler' (uniform lowp usampler2D)
 0:60            subtract (temp highp 2-component vector of float)
 0:60              'tc' (smooth in highp 2-component vector of float)