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llvm-mirror/test/Transforms/SCCP/2008-01-27-UndefCorrelate.ll
Eric Christopher a62270de2c Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552
2019-04-17 04:52:47 +00:00

37 lines
633 B
LLVM

; RUN: opt < %s -sccp -S | grep undef | count 1
; PR1938
define i32 @main() {
entry:
br label %bb
bb:
%indvar = phi i32 [ 0, %entry ], [ %k, %bb.backedge ]
%k = add i32 %indvar, 1
br i1 undef, label %cond_true, label %cond_false
cond_true:
%tmp97 = icmp slt i32 %k, 10
br i1 %tmp97, label %bb.backedge, label %bb12
bb.backedge:
br label %bb
cond_false:
%tmp9 = icmp slt i32 %k, 10
br i1 %tmp9, label %bb.backedge, label %bb12
bb12:
%tmp14 = icmp eq i32 %k, 10
br i1 %tmp14, label %cond_next18, label %cond_true17
cond_true17:
tail call void @abort( )
unreachable
cond_next18:
ret i32 0
}
declare void @abort()