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a918957b28
This prevents generating stm r1!, {r0, r1} on Thumb1, where value
stored for r1 is UNKONWN.
Patch by Zhaoshi Zheng.
Differential Revision: https://reviews.llvm.org/D27910
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@296538 91177308-0d34-0410-b5e6-96231b3b80d8
20 lines
570 B
LLVM
20 lines
570 B
LLVM
; RUN: llc -mtriple=thumbv6m-eabi -verify-machineinstrs %s -o - | FileCheck %s
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; RUN: llc -mtriple=thumbv5e-linux-gnueabi -verify-machineinstrs %s -o - | FileCheck %s
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%0 = type { %0*, %0*, i32 }
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@x1 = external global %0, align 4
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@x2 = external global %0, align 4
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; CHECK: str r0, [r1]
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; CHECK-NEXT: str r1, [r1, #4]
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; CHECK-NOT: stm
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define void @foo(i32 %unused, %0* %x) {
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%first = getelementptr inbounds %0, %0* %x, i32 0, i32 0
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%second = getelementptr inbounds %0, %0* %x, i32 0, i32 1
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store %0* @x1, %0** %first
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store %0* %x, %0** %second
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unreachable
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}
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