diff options
| author | Owen Anderson <resistor@mac.com> | 2010-09-02 18:23:58 +0000 |
|---|---|---|
| committer | Owen Anderson <resistor@mac.com> | 2010-09-02 18:23:58 +0000 |
| commit | 66048c2169dd8d7541eae39e5c2aa2a935fc46fa (patch) | |
| tree | c4f41bc684085d0fd74a7b10489d6a65a5bd5243 /test/Transforms/CorrelatedValuePropagation/2010-09-02-Trunc.ll | |
| parent | bb5a039b76cc2cc6de6a5b6bdd4ebf6aefd9d564 (diff) | |
| download | llvm-66048c2169dd8d7541eae39e5c2aa2a935fc46fa.tar.gz llvm-66048c2169dd8d7541eae39e5c2aa2a935fc46fa.tar.bz2 llvm-66048c2169dd8d7541eae39e5c2aa2a935fc46fa.tar.xz | |
Fix a bug in LazyValueInfo that CorrelatedValuePropagation exposed: In the LVI lattice, undef and the full set ConstantRange should not
be treated as equivalent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112843 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/CorrelatedValuePropagation/2010-09-02-Trunc.ll')
| -rw-r--r-- | test/Transforms/CorrelatedValuePropagation/2010-09-02-Trunc.ll | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/test/Transforms/CorrelatedValuePropagation/2010-09-02-Trunc.ll b/test/Transforms/CorrelatedValuePropagation/2010-09-02-Trunc.ll new file mode 100644 index 0000000000..f2553dc2ca --- /dev/null +++ b/test/Transforms/CorrelatedValuePropagation/2010-09-02-Trunc.ll @@ -0,0 +1,25 @@ +; RUN: opt -S < %s -correlated-propagation | FileCheck %s + +; CHECK: @check +define i16 @test(i32 %a, i1 %b) { +entry: + %c = icmp eq i32 %a, 0 + br i1 %c, label %left, label %right + +right: + %d = trunc i32 %a to i1 + br label %merge + +left: + br i1 %b, label %merge, label %other + +other: + ret i16 23 + +merge: + %f = phi i1 [%b, %left], [%d, %right] +; CHECK: select i1 %f, i16 1, i16 0 + %h = select i1 %f, i16 1, i16 0 +; CHECK: ret i16 %h + ret i16 %h +}
\ No newline at end of file |