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