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890a876e0e
This gets gas and llc -filetype=obj to agree on the order of prefixes. For llvm-mc we need to fix the asm parser to know that it makes a difference on which line the "lock" is in. Part of pr23594. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238232 91177308-0d34-0410-b5e6-96231b3b80d8
27 lines
709 B
LLVM
27 lines
709 B
LLVM
; RUN: llc < %s -march=x86-64 -verify-machineinstrs | FileCheck %s
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; rdar://9692967
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define void @t1(i64* %p, i32 %b) nounwind {
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entry:
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%p.addr = alloca i64*, align 8
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store i64* %p, i64** %p.addr, align 8
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%tmp = load i64*, i64** %p.addr, align 8
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; CHECK-LABEL: t1:
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; CHECK: movl $2147483648, %eax
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; CHECK: lock orq %r{{.*}}, (%r{{.*}})
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%0 = atomicrmw or i64* %tmp, i64 2147483648 seq_cst
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ret void
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}
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define void @t2(i64* %p, i32 %b) nounwind {
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entry:
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%p.addr = alloca i64*, align 8
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store i64* %p, i64** %p.addr, align 8
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%tmp = load i64*, i64** %p.addr, align 8
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; CHECK-LABEL: t2:
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; CHECK: lock orq $2147483644, (%r{{.*}})
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%0 = atomicrmw or i64* %tmp, i64 2147483644 seq_cst
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ret void
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}
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