mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-24 06:30:19 +00:00
32 lines
614 B
LLVM
32 lines
614 B
LLVM
|
; RUN: llvm-as < %s | opt -jump-threading -simplifycfg -mem2reg | llvm-dis | grep {ret i32 %v1}
|
||
|
|
; There should be no uncond branches left.
|
||
|
|
; RUN: llvm-as < %s | opt -jump-threading -simplifycfg -mem2reg | llvm-dis | not grep {br label}
|
||
|
|
|
||
|
|
declare i32 @f1()
|
||
|
|
declare i32 @f2()
|
||
|
|
declare void @f3()
|
||
|
|
|
||
|
|
define i32 @test(i1 %cond) {
|
||
|
|
br i1 %cond, label %T1, label %F1
|
||
|
|
|
||
|
|
T1:
|
||
|
|
%v1 = call i32 @f1()
|
||
|
|
br label %Merge
|
||
|
|
|
||
|
|
F1:
|
||
|
|
%v2 = call i32 @f2()
|
||
|
|
br label %Merge
|
||
|
|
|
||
|
|
Merge:
|
||
|
|
%A = phi i1 [true, %T1], [false, %F1]
|
||
|
|
%B = phi i32 [%v1, %T1], [%v2, %F1]
|
||
|
|
br i1 %A, label %T2, label %F2
|
||
|
|
|
||
|
|
T2:
|
||
|
|
call void @f3()
|
||
|
|
ret i32 %B
|
||
|
|
|
||
|
|
F2:
|
||
|
|
ret i32 %B
|
||
|
|
}
|