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49 lines
1.3 KiB
LLVM
49 lines
1.3 KiB
LLVM
; RUN: llvm-as < %s | \
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; RUN: opt -predsimplify -instcombine -simplifycfg | llvm-dis > %t
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; RUN: grep -v declare %t | not grep fail
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; RUN: grep -v declare %t | grep pass | count 3
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define i32 @test1(i32 %x, i32 %y) {
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entry:
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%tmp2 = or i32 %x, %y ; <i32> [#uses=1]
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%tmp = icmp eq i32 %tmp2, 0 ; <i1> [#uses=1]
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br i1 %tmp, label %cond_true, label %return
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cond_true: ; preds = %entry
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%tmp4 = icmp eq i32 %x, 0 ; <i1> [#uses=1]
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br i1 %tmp4, label %cond_true5, label %cond_false
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cond_true5: ; preds = %cond_true
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%tmp6 = call i32 @pass( ) ; <i32> [#uses=1]
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ret i32 %tmp6
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cond_false: ; preds = %cond_true
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%tmp8 = call i32 @fail( ) ; <i32> [#uses=1]
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ret i32 %tmp8
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return: ; preds = %entry
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ret i32 0
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}
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define i32 @test2(i32 %x, i32 %y) {
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entry:
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%tmp2 = or i32 %x, %y ; <i32> [#uses=1]
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%tmp = icmp ne i32 %tmp2, 0 ; <i1> [#uses=1]
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br i1 %tmp, label %cond_true, label %return
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cond_true: ; preds = %entry
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%tmp4 = icmp eq i32 %x, 0 ; <i1> [#uses=1]
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br i1 %tmp4, label %cond_true5, label %cond_false
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cond_true5: ; preds = %cond_true
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%tmp6 = call i32 @pass1( ) ; <i32> [#uses=1]
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ret i32 %tmp6
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cond_false: ; preds = %cond_true
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%tmp8 = call i32 @pass2( ) ; <i32> [#uses=1]
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ret i32 %tmp8
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return: ; preds = %entry
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ret i32 0
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}
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declare i32 @fail()
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declare i32 @pass()
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declare i32 @pass1()
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declare i32 @pass2()
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