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Joerg Sonnenberger
01e47fd2c1
The current pattern would trigger for scheduling changes of the post-load computation, since those are commutable with the inline asm. Avoid this by explicitly check the order of load vs asm block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@367180 91177308-0d34-0410-b5e6-96231b3b80d8
16 lines
435 B
LLVM
16 lines
435 B
LLVM
; PR13504
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; RUN: llc -mtriple=i686-- -mcpu=atom < %s | FileCheck %s
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; Check that treemap is read before the asm statement.
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; CHECK: movl 8(%{{esp|ebp}})
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; CHECK: bsfl
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; CHECK-NOT: movl 8(%{{esp|ebp}})
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define i32 @foo(i32 %treemap) nounwind uwtable {
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entry:
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%sub = sub i32 0, %treemap
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%and = and i32 %treemap, %sub
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%0 = tail call i32 asm "bsfl $1,$0\0A\09", "=r,rm,~{dirflag},~{fpsr},~{flags}"(i32 %and) nounwind
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ret i32 %0
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}
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