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; RUN: opt < %s -constprop -die -S | FileCheck %s
; This is a basic sanity check for constant propagation. The add instruction
; should be eliminated.
define i32 @test1(i1 %B) {
br i1 %B, label %BB1, label %BB2
BB1:
%Val = add i32 0, 0
br label %BB3
BB2:
br label %BB3
BB3:
; CHECK: @test1
; CHECK: %Ret = phi i32 [ 0, %BB1 ], [ 1, %BB2 ]
%Ret = phi i32 [ %Val, %BB1 ], [ 1, %BB2 ]
ret i32 %Ret
}
; PR6197
define i1 @test2(i8* %f) nounwind {
entry:
%V = icmp ne i8* blockaddress(@test2, %bb), null
br label %bb
bb:
ret i1 %V
; CHECK: @test2
; CHECK: ret i1 true
}
define i1 @TNAN() {
; CHECK: @TNAN
; CHECK: ret i1 true
%A = fcmp uno double 0x7FF8000000000000, 1.000000e+00
%B = fcmp uno double 1.230000e+02, 1.000000e+00
%C = or i1 %A, %B
ret i1 %C
}
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