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37096d919a
MachineInstrBuilder::addDisp can already add an immediate or global address MO with an adjusted offset, this patch adds support for constant pool indices as well. All remaining MO types still assert - there are a number of other types that could support adjusted offsets but I have no test cases at this time. Required to fix a regression in D13988 found by Mikael Holmén during stress testing (test case attached). Differential Revision: http://reviews.llvm.org/D14867 llvm-svn: 253795
21 lines
870 B
LLVM
21 lines
870 B
LLVM
; RUN: llc -mtriple=i686-unknown-unknown -mattr=+sse4.1 < %s | FileCheck %s --check-prefix=X32
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; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=+sse4.1 < %s | FileCheck %s --check-prefix=X64
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; Test for case where insertps folds the load of an insertion element from a constant pool.
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define <4 x float> @fold_from_constantpool(<4 x float> %a) {
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; X32-LABEL: fold_from_constantpool:
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; X32: # BB#0:
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; X32-NEXT: insertps {{.*#+}} xmm0 = mem[0],xmm0[1,2,3]
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; X32-NEXT: retl
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;
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; X64-LABEL: fold_from_constantpool:
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; X64: # BB#0:
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; X64-NEXT: insertps {{.*#+}} xmm0 = mem[0],xmm0[1,2,3]
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; X64-NEXT: retq
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%1 = call <4 x float> @llvm.x86.sse41.insertps(<4 x float> %a, <4 x float> <float 0.0, float 1.0, float 0.0, float 0.0>, i8 64)
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ret <4 x float> %1
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}
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declare <4 x float> @llvm.x86.sse41.insertps(<4 x float>, <4 x float>, i8) nounwind readnone
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