GlobalISel: Lower s1 source G_SITOFP/G_UITOFP
diff --git a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
index a85e04e..d8bcc59 100644
--- a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
@@ -3851,6 +3851,14 @@
LLT DstTy = MRI.getType(Dst);
LLT SrcTy = MRI.getType(Src);
+ if (SrcTy == LLT::scalar(1)) {
+ auto True = MIRBuilder.buildFConstant(DstTy, 1.0);
+ auto False = MIRBuilder.buildFConstant(DstTy, 0.0);
+ MIRBuilder.buildSelect(Dst, Src, True, False);
+ MI.eraseFromParent();
+ return Legalized;
+ }
+
if (SrcTy != LLT::scalar(64))
return UnableToLegalize;
@@ -3876,6 +3884,14 @@
const LLT S32 = LLT::scalar(32);
const LLT S1 = LLT::scalar(1);
+ if (SrcTy == S1) {
+ auto True = MIRBuilder.buildFConstant(DstTy, -1.0);
+ auto False = MIRBuilder.buildFConstant(DstTy, 0.0);
+ MIRBuilder.buildSelect(Dst, Src, True, False);
+ MI.eraseFromParent();
+ return Legalized;
+ }
+
if (SrcTy != S64)
return UnableToLegalize;