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d32c49bf68
For little-endian, the function would convert (extract_vector_elt (load X), Y) to X + Y*sizeof(elt). For big-endian it would instead use X + sizeof(vec) - Y*sizeof(elt). The big-endian case wasn't right since vector index order always follows memory/array order, even for big-endian. (Note that the current handling has to be wrong for Y==0 since it would access beyond the end of the vector.) Original patch by Richard Sandiford. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236529 91177308-0d34-0410-b5e6-96231b3b80d8
14 lines
411 B
LLVM
14 lines
411 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 memory copy of a v2i32 (via the constant pool).
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define void @f1(<2 x i32> *%dest) {
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; CHECK-LABEL: f1:
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; CHECK: lgrl [[REG:%r[0-5]]], {{[._A-Za-z0-9]}}
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; CHECK: stg [[REG]], 0(%r2)
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; CHECK: br %r14
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store <2 x i32> <i32 1000000, i32 99999>, <2 x i32> *%dest
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ret void
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}
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