AMDGPU: Avoid contraction in wwm allocation failure message (llvm#150888)

arsenm · web-flow · commit 72b77c193f10 · 2025-07-28T17:11:28.000+09:00
diff --git a/llvm/lib/Target/AMDGPU/SILowerSGPRSpills.cpp b/llvm/lib/Target/AMDGPU/SILowerSGPRSpills.cpp
@@ -376,7 +376,7 @@ void SILowerSGPRSpills::determineRegsForWWMAllocation(MachineFunction &MF,
     // Reserve an arbitrary register and report the error.
     TRI->markSuperRegs(RegMask, AMDGPU::VGPR0);
     MF.getFunction().getContext().emitError(
-        "can't find enough VGPRs for wwm-regalloc");
+        "cannot find enough VGPRs for wwm-regalloc");
   }
 }
 
diff --git a/llvm/test/CodeGen/AMDGPU/wwm-regalloc-error.ll b/llvm/test/CodeGen/AMDGPU/wwm-regalloc-error.ll
@@ -2,7 +2,7 @@
 
 ; A negative test to capture the expected error when the VGPRs are insufficient for wwm-regalloc.
 
-; CHECK: error: can't find enough VGPRs for wwm-regalloc
+; CHECK: error: cannot find enough VGPRs for wwm-regalloc
 
 define amdgpu_kernel void @test(i32 %in) {
 entry:

Original file line number	Diff line number	Diff line change
`@@ -376,7 +376,7 @@ void SILowerSGPRSpills::determineRegsForWWMAllocation(MachineFunction &MF,`
`376`	`376`	`// Reserve an arbitrary register and report the error.`
`377`	`377`	`TRI->markSuperRegs(RegMask, AMDGPU::VGPR0);`
`378`	`378`	`MF.getFunction().getContext().emitError(`
`379`		`- "can't find enough VGPRs for wwm-regalloc");`
	`379`	`+ "cannot find enough VGPRs for wwm-regalloc");`
`380`	`380`	`}`
`381`	`381`	`}`
`382`	`382`