[AMDGPU] Handle S_GETREG_B32_const in the hazard recognizer. NFCI (#160364)

rampitec · web-flow · commit 32c2393ca5a5 · 2025-09-23T14:30:24.000-07:00
diff --git a/llvm/lib/Target/AMDGPU/GCNHazardRecognizer.cpp b/llvm/lib/Target/AMDGPU/GCNHazardRecognizer.cpp
@@ -82,7 +82,7 @@ static bool isDivFMas(unsigned Opcode) {
 }
 
 static bool isSGetReg(unsigned Opcode) {
-  return Opcode == AMDGPU::S_GETREG_B32;
+  return Opcode == AMDGPU::S_GETREG_B32 || Opcode == AMDGPU::S_GETREG_B32_const;
 }
 
 static bool isSSetReg(unsigned Opcode) {

Original file line number	Diff line number	Diff line change
`@@ -82,7 +82,7 @@ static bool isDivFMas(unsigned Opcode) {`
`82`	`82`	`}`
`83`	`83`
`84`	`84`	`static bool isSGetReg(unsigned Opcode) {`
`85`		`- return Opcode == AMDGPU::S_GETREG_B32;`
	`85`	`+ return Opcode == AMDGPU::S_GETREG_B32 \|\| Opcode == AMDGPU::S_GETREG_B32_const;`
`86`	`86`	`}`
`87`	`87`
`88`	`88`	`static bool isSSetReg(unsigned Opcode) {`