AMDGPU/GlobalISel: Fix legalize failure on i65 ctpop

llvm · Jan 19, 2022 · adab717 · adab717
1 parent 63eea41
commit adab717
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Showing 2 changed files with 620 additions and 2 deletions.
diff --git a/llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp b/llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
@@ -929,10 +929,11 @@ AMDGPULegalizerInfo::AMDGPULegalizerInfo(const GCNSubtarget &ST_,
   getActionDefinitionsBuilder(G_CTPOP)
     .legalFor({{S32, S32}, {S32, S64}})
     .clampScalar(0, S32, S32)
+    .widenScalarToNextPow2(1, 32)
     .clampScalar(1, S32, S64)
     .scalarize(0)
-    .widenScalarToNextPow2(0, 32)
-    .widenScalarToNextPow2(1, 32);
+    .widenScalarToNextPow2(0, 32);
+
 
   // The hardware instructions return a different result on 0 than the generic
   // instructions expect. The hardware produces -1, but these produce the