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llvm-project/llvm/test/CodeGen/SystemZ/vec-extract-02.ll

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[DAGCombiner] Account for getVectorIdxTy() when narrowing vector load 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
2015-05-06 03:34:10 +08:00
; Verify ReplaceExtractVectorEltOfLoadWithNarrowedLoad fixes
;
; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s
; Test a case where a vector extraction can be simplified to a scalar load.
; The index must be extended from i32 to i64.
define i32 @f1(<4 x i32> *%ptr, i32 %index) {
; CHECK-LABEL: f1:
[SystemZ] Let z13 also support FeatureMiscellaneousExtensions. This processor feature had been left out by mistake from the z13 ProcessorModel. This time with updated test case. Thanks, Hans. Reviewed by Ulrich Weigand. llvm-svn: 274216
2016-06-30 15:13:56 +08:00
; CHECK: risbgn {{%r[0-5]}}, %r3, 30, 189, 2
[DAGCombiner] Account for getVectorIdxTy() when narrowing vector load 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
2015-05-06 03:34:10 +08:00
; CHECK: l %r2,
; CHECK: br %r14
%vec = load <4 x i32>, <4 x i32> *%ptr
%res = extractelement <4 x i32> %vec, i32 %index
ret i32 %res
}