HLSL: implement [unroll] and [loop] attributes

This adds infrastructure suitable for any front end to create SPIR-V loop control flags. The only current front end doing so is HLSL. [unroll] turns into spv::LoopControlUnrollMask [loop] turns into spv::LoopControlDontUnrollMask no specification means spv::LoopControlMaskNone
2017-05-02 20:14:50 -06:00
parent de1cc06c1d
commit f1709e7146
17 changed files with 334 additions and 17 deletions
--- a/Test/baseResults/hlsl.attribute.expression.comp.out
+++ b/Test/baseResults/hlsl.attribute.expression.comp.out
@@ -132,7 +132,7 @@ local_size = (4, 6, 8)
                              Store 13(x) 14
                              Branch 15
              15:             Label
-                              LoopMerge 17 18 None
+                              LoopMerge 17 18 Unroll 
                              Branch 19
              19:             Label
              20:     11(int) Load 13(x)