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[ARM] Add a test case for revision 243956.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246785 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Quentin Colombet 2015-09-03 16:49:18 +00:00
parent 412db355b3
commit 3610c9fe55
1 changed files with 35 additions and 0 deletions
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35
test/CodeGen/ARM/legalize-unaligned-load.ll Normal file
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; RUN: llc -O3 -code-model=default -relocation-model=default -mtriple=armv7l-unknown-linux-gnueabihf -mcpu=generic %s -o - | FileCheck %s
; Check that we respect the existing chain between loads and stores when we
; legalize unaligned loads.
; Test case from PR24669.
; Make sure the loads happen before the stores.
; CHECK-LABEL: get_set_complex:
; CHECK-NOT: str
; CHECK: ldr
; CHECK-NOT: str
; CHECK: ldr
; CHECK: str
; CHECK: bx
define i32 @get_set_complex({ float, float }* noalias nocapture %retptr,
{ i8*, i32 }** noalias nocapture readnone %excinfo,
i8* noalias nocapture readnone %env,
[38 x i8]* nocapture %arg.rec,
float %arg.val.0, float %arg.val.1)
{
entry:
%inserted.real = insertvalue { float, float } undef, float %arg.val.0, 0
%inserted.imag = insertvalue { float, float } %inserted.real, float %arg.val.1, 1
%.15 = getelementptr inbounds [38 x i8], [38 x i8]* %arg.rec, i32 0, i32 10
%.16 = bitcast i8* %.15 to { float, float }*
%.17 = bitcast i8* %.15 to float*
%.18 = load float, float* %.17, align 1
%.19 = getelementptr inbounds [38 x i8], [38 x i8]* %arg.rec, i32 0, i32 14
%tmp = bitcast i8* %.19 to float*
%.20 = load float, float* %tmp, align 1
%inserted.real.1 = insertvalue { float, float } undef, float %.18, 0
%inserted.imag.1 = insertvalue { float, float } %inserted.real.1, float %.20, 1
store { float, float } %inserted.imag, { float, float }* %.16, align 1
store { float, float } %inserted.imag.1, { float, float }* %retptr, align 4
ret i32 0
}