SPV: Correct semantics of atomic-counter decrement.

The semantics differ between GLSL/HLSL and SPIR-V. Translate between these.
2017-10-06 21:21:48 -06:00
parent 592e8f0441
commit 48d6e798bc
3 changed files with 80 additions and 71 deletions
--- a/glslang/Include/intermediate.h
+++ b/glslang/Include/intermediate.h
@@ -417,8 +417,8 @@ enum TOperator {
    EOpAtomicExchange,
    EOpAtomicCompSwap,

-    EOpAtomicCounterIncrement,
-    EOpAtomicCounterDecrement,
+    EOpAtomicCounterIncrement, // results in pre-increment value
+    EOpAtomicCounterDecrement, // results in post-decrement value
    EOpAtomicCounter,
    EOpAtomicCounterAdd,
    EOpAtomicCounterSubtract,