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| author | Eli Friedman <eli.friedman@gmail.com> | 2009-07-15 22:13:34 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2009-07-15 22:13:34 +0000 |
| commit | fd2934f190fc13b60f8e5dd9639008d721b170f8 (patch) | |
| tree | 016bf4fc8d33ec33dcdc6ad4fe5f705233d82622 /test/Transforms | |
| parent | f05522974b3c1b9dc2644831364e19d5132e751b (diff) | |
| download | external_llvm-fd2934f190fc13b60f8e5dd9639008d721b170f8.zip external_llvm-fd2934f190fc13b60f8e5dd9639008d721b170f8.tar.gz external_llvm-fd2934f190fc13b60f8e5dd9639008d721b170f8.tar.bz2 | |
Don't restrict the set of instructions where we try to constant-fold the
operands; it's possible to end up with a constant-foldable operand to
most instructions, even those which can't trap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75845 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms')
| -rw-r--r-- | test/Transforms/InstCombine/fold-bin-operand.ll | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/fold-bin-operand.ll b/test/Transforms/InstCombine/fold-bin-operand.ll new file mode 100644 index 0000000..e884e19 --- /dev/null +++ b/test/Transforms/InstCombine/fold-bin-operand.ll @@ -0,0 +1,13 @@ +; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep icmp + +define i1 @f(i1 %x) { + %b = and i1 %x, icmp eq (i8* inttoptr (i32 1 to i8*), i8* inttoptr (i32 2 to i8*)) + ret i1 %b +} + +; FIXME: This doesn't fold at the moment! +; define i32 @f(i32 %x) { +; %b = add i32 %x, zext (i1 icmp eq (i8* inttoptr (i32 1000000 to i8*), i8* inttoptr (i32 2000000 to i8*)) to i32) +; ret i32 %b +;} + |