forked from OSchip/llvm-project
47 lines
1.0 KiB
LLVM
47 lines
1.0 KiB
LLVM
|
; Do not promote null value because it may be unsafe to do so.
|
||
|
|
; RUN: opt < %s -licm -S | not grep promoted
|
||
|
|
|
||
|
|
define i32 @f(i32 %foo, i32 %bar, i32 %com) {
|
||
|
|
entry:
|
||
|
|
%tmp2 = icmp eq i32 %foo, 0 ; <i1> [#uses=1]
|
||
|
|
br i1 %tmp2, label %cond_next, label %cond_true
|
||
|
|
|
||
|
|
cond_true: ; preds = %entry
|
||
|
|
br label %return
|
||
|
|
|
||
|
|
cond_next: ; preds = %entry
|
||
|
|
br label %bb
|
||
|
|
|
||
|
|
bb: ; preds = %bb15, %cond_next
|
||
|
|
switch i32 %bar, label %bb15 [
|
||
|
|
i32 1, label %bb6
|
||
|
|
]
|
||
|
|
|
||
|
|
bb6: ; preds = %bb
|
||
|
|
%tmp8 = icmp eq i32 %com, 0 ; <i1> [#uses=1]
|
||
|
|
br i1 %tmp8, label %cond_next14, label %cond_true11
|
||
|
|
|
||
|
|
cond_true11: ; preds = %bb6
|
||
|
|
br label %return
|
||
|
|
|
||
|
|
cond_next14: ; preds = %bb6
|
||
|
|
store i8 0, i8* null
|
||
|
|
br label %bb15
|
||
|
|
|
||
|
|
bb15: ; preds = %cond_next14, %bb
|
||
|
|
br label %bb
|
||
|
|
|
||
|
|
return: ; preds = %cond_true11, %cond_true
|
||
|
|
%storemerge = phi i32 [ 0, %cond_true ], [ undef, %cond_true11 ] ; <i32> [#uses=1]
|
||
|
|
ret i32 %storemerge
|
||
|
|
}
|
||
|
|
|
||
|
|
define i32 @kdMain() {
|
||
|
|
entry:
|
||
|
|
%tmp1 = call i32 @f( i32 0, i32 1, i32 1 ) ; <i32> [#uses=0]
|
||
|
|
call void @exit( i32 0 )
|
||
|
|
unreachable
|
||
|
|
}
|
||
|
|
|
||
|
|
declare void @exit(i32)
|