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MOV R0, R1 MOV R1, R0 the second machine instruction is removed. Added a regression test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29792 91177308-0d34-0410-b5e6-96231b3b80d8
16 lines
535 B
LLVM
16 lines
535 B
LLVM
; RUN: llvm-as < %s | llc -fast -march=x86 -mcpu=i386 | not grep 'movl %eax, %edx'
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int %foo(int %t, int %C) {
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entry:
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br label %cond_true
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cond_true: ; preds = %cond_true, %entry
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%t_addr.0.0 = phi int [ %t, %entry ], [ %tmp7, %cond_true ] ; <int> [#uses=2]
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%tmp7 = add int %t_addr.0.0, 1 ; <int> [#uses=1]
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%tmp = setgt int %C, 39 ; <bool> [#uses=1]
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br bool %tmp, label %bb12, label %cond_true
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bb12: ; preds = %cond_true
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ret int %t_addr.0.0
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}
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