modify CS simd32 heuristic

fftzeng · sys_zuul · commit 35a8403380c1 · 2020-05-19T19:21:45.000-07:00
Change-Id: Iea30efb04da332f3ed8ac92d87197620cc607863
diff --git a/IGC/Compiler/CISACodeGen/ComputeShaderCodeGen.cpp b/IGC/Compiler/CISACodeGen/ComputeShaderCodeGen.cpp
@@ -443,7 +443,7 @@ namespace IGC
                 float occu16 = ctx->GetThreadOccupancy(SIMDMode::SIMD16);
                 float occu32 = ctx->GetThreadOccupancy(SIMDMode::SIMD32);
                 if (!ctx->isSecondCompile &&
-                    (occu32 >= occu16 ||
+                    (occu32 > occu16 ||
                     (occu32 == occu16 && ctx->m_instrTypes.hasBarrier)))
                 {
                     return true;

Original file line number	Diff line number	Diff line change
`@@ -443,7 +443,7 @@ namespace IGC`
`443`	`443`	`float occu16 = ctx->GetThreadOccupancy(SIMDMode::SIMD16);`
`444`	`444`	`float occu32 = ctx->GetThreadOccupancy(SIMDMode::SIMD32);`
`445`	`445`	`if (!ctx->isSecondCompile &&`
`446`		`- (occu32 >= occu16 \|\|`
	`446`	`+ (occu32 > occu16 \|\|`
`447`	`447`	`(occu32 == occu16 && ctx->m_instrTypes.hasBarrier)))`
`448`	`448`	`{`
`449`	`449`	`return true;`