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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
34 lines
901 B
LLVM
34 lines
901 B
LLVM
; RUN: llc < %s -verify-machineinstrs -mtriple=i686-linux -mattr=-sse | FileCheck %s
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; PR11768
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@ptr = external global i8*
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define void @baz() nounwind ssp {
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entry:
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%0 = load i8*, i8** @ptr, align 4
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%cmp = icmp eq i8* %0, null
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fence seq_cst
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br i1 %cmp, label %if.then, label %if.else
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; Make sure the fence comes before the comparison, since it
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; clobbers EFLAGS.
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; CHECK: lock orl {{.*}}, (%esp)
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; CHECK-NEXT: testl [[REG:%e[a-z]+]], [[REG]]
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if.then: ; preds = %entry
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tail call void bitcast (void (...)* @foo to void ()*)() nounwind
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br label %if.end
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if.else: ; preds = %entry
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tail call void bitcast (void (...)* @bar to void ()*)() nounwind
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br label %if.end
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if.end: ; preds = %if.else, %if.then
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ret void
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}
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declare void @foo(...)
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declare void @bar(...)
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