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- ; 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)
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