mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-24 03:33:20 +01:00
34 lines
647 B
LLVM
34 lines
647 B
LLVM
; RUN: opt < %s -constprop -die -S | FileCheck %s
|
|
|
|
; This is a basic sanity check for constant propogation. 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
|
|
}
|