AMDGPU/GlobalISel: Clamp G_SITOFP/G_UITOFP sources
llvm-svn: 373989
diff --git a/llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp b/llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
index dfb8ed55..c1c111a 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
@@ -424,11 +424,14 @@
.scalarize(0);
// TODO: Split s1->s64 during regbankselect for VALU.
- getActionDefinitionsBuilder({G_SITOFP, G_UITOFP})
+ auto &IToFP = getActionDefinitionsBuilder({G_SITOFP, G_UITOFP})
.legalFor({{S32, S32}, {S64, S32}, {S16, S32}, {S32, S1}, {S16, S1}, {S64, S1}})
.lowerFor({{S32, S64}})
- .customFor({{S64, S64}})
- .scalarize(0);
+ .customFor({{S64, S64}});
+ if (ST.has16BitInsts())
+ IToFP.legalFor({{S16, S16}});
+ IToFP.clampScalar(1, S32, S64)
+ .scalarize(0);
auto &FPToI = getActionDefinitionsBuilder({G_FPTOSI, G_FPTOUI})
.legalFor({{S32, S32}, {S32, S64}, {S32, S16}});