mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-01 08:23:21 +01:00
38 lines
675 B
LLVM
38 lines
675 B
LLVM
; RUN: opt < %s -jump-threading -mem2reg -instcombine -simplifycfg -S | FileCheck %s
|
|
|
|
declare i32 @f1()
|
|
declare i32 @f2()
|
|
declare void @f3()
|
|
|
|
define i32 @test(i1 %cond, i1 %cond2, i1 %cond3) {
|
|
; CHECK: test
|
|
br i1 %cond, label %T1, label %F1
|
|
|
|
; CHECK-NOT: T1:
|
|
T1:
|
|
%v1 = call i32 @f1()
|
|
br label %Merge
|
|
|
|
F1:
|
|
%v2 = call i32 @f2()
|
|
br label %Merge
|
|
|
|
Merge:
|
|
; CHECK: Merge:
|
|
; CHECK: %v1 = call i32 @f1()
|
|
; CHECK-NEXT: %D = and i1 %cond2, %cond3
|
|
; CHECK-NEXT: br i1 %D
|
|
%A = phi i1 [true, %T1], [false, %F1]
|
|
%B = phi i32 [%v1, %T1], [%v2, %F1]
|
|
%C = and i1 %A, %cond2
|
|
%D = and i1 %C, %cond3
|
|
br i1 %D, label %T2, label %F2
|
|
|
|
T2:
|
|
call void @f3()
|
|
ret i32 %B
|
|
|
|
F2:
|
|
ret i32 %B
|
|
}
|