AMDGPU/GlobalISel: Legality for integer min/max
llvm-svn: 361519
diff --git a/llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp b/llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
index c4ca42e..f93b610 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
@@ -353,6 +353,29 @@
.clampScalar(0, S32, S32)
.scalarize(0);
+ if (ST.has16BitInsts()) {
+ if (ST.hasVOP3PInsts()) {
+ getActionDefinitionsBuilder({G_SMIN, G_SMAX, G_UMIN, G_UMAX})
+ .legalFor({S32, S16, V2S16})
+ .moreElementsIf(isSmallOddVector(0), oneMoreElement(0))
+ .clampMaxNumElements(0, S16, 2)
+ .clampScalar(0, S16, S32)
+ .widenScalarToNextPow2(0)
+ .scalarize(0);
+ } else {
+ getActionDefinitionsBuilder({G_SMIN, G_SMAX, G_UMIN, G_UMAX})
+ .legalFor({S32, S16})
+ .widenScalarToNextPow2(0)
+ .clampScalar(0, S16, S32)
+ .scalarize(0);
+ }
+ } else {
+ getActionDefinitionsBuilder({G_SMIN, G_SMAX, G_UMIN, G_UMAX})
+ .legalFor({S32})
+ .clampScalar(0, S32, S32)
+ .widenScalarToNextPow2(0)
+ .scalarize(0);
+ }
auto smallerThan = [](unsigned TypeIdx0, unsigned TypeIdx1) {
return [=](const LegalityQuery &Query) {