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This patch makes ReplaceExtractVectorEltOfLoadWithNarrowedLoad convert the element number from getVectorIdxTy() to PtrTy before doing pointer arithmetic on it. This is needed on z, where element numbers are i32 but pointers are i64. Original patch by Richard Sandiford. llvm-svn: 236530
16 lines
503 B
LLVM
16 lines
503 B
LLVM
; Verify ReplaceExtractVectorEltOfLoadWithNarrowedLoad fixes
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s
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; Test a case where a vector extraction can be simplified to a scalar load.
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; The index must be extended from i32 to i64.
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define i32 @f1(<4 x i32> *%ptr, i32 %index) {
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; CHECK-LABEL: f1:
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; CHECK: risbg {{%r[0-5]}}, %r3, 30, 189, 2
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; CHECK: l %r2,
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; CHECK: br %r14
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%vec = load <4 x i32>, <4 x i32> *%ptr
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%res = extractelement <4 x i32> %vec, i32 %index
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ret i32 %res
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}
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