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; RUN: opt < %s -value-propagation -S | FileCheck %s
; PR2581
; CHECK: @test1
define i32 @test1(i1 %C) nounwind {
br i1 %C, label %exit, label %body
body: ; preds = %0
; CHECK-NOT: select
%A = select i1 %C, i32 10, i32 11 ; <i32> [#uses=1]
; CHECK: ret i32 11
ret i32 %A
exit: ; preds = %0
; CHECK: ret i32 10
ret i32 10
}
declare i1 @ext()
; CHECK: @test2
define i1 @test2() {
entry:
%cond = tail call i1 @ext() ; <i1> [#uses=2]
br i1 %cond, label %bb1, label %bb2
bb1: ; preds = %entry
%cond2 = tail call i1 @ext() ; <i1> [#uses=1]
br i1 %cond2, label %bb3, label %bb2
bb2: ; preds = %bb1, %entry
; CHECK-NOT: phi i1
%cond_merge = phi i1 [ %cond, %entry ], [ false, %bb1 ] ; <i1> [#uses=1]
; CHECK: ret i1 false
ret i1 %cond_merge
bb3: ; preds = %bb1
%res = tail call i1 @ext() ; <i1> [#uses=1]
; CHECK: ret i1 %res
ret i1 %res
}
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