diff options
Diffstat (limited to 'llvm/test/Transforms/InstCombine/2007-12-19-IcmpSub.ll')
| -rw-r--r-- | llvm/test/Transforms/InstCombine/2007-12-19-IcmpSub.ll | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/llvm/test/Transforms/InstCombine/2007-12-19-IcmpSub.ll b/llvm/test/Transforms/InstCombine/2007-12-19-IcmpSub.ll new file mode 100644 index 00000000000..ecb5e6ee994 --- /dev/null +++ b/llvm/test/Transforms/InstCombine/2007-12-19-IcmpSub.ll @@ -0,0 +1,25 @@ +; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep {sub} + +define i32 @foo(i32 %a) { +entry: + %tmp2 = sub i32 99, %a ; <i32> [#uses=1] + %tmp3 = icmp sgt i32 %tmp2, -1 ; <i1> [#uses=1] + %retval = select i1 %tmp3, i32 %a, i32 0 ; <i32> [#uses=1] + ret i32 %retval +} + +define i32 @bar(i32 %a) { +entry: + %tmp2 = sub i32 99, %a ; <i32> [#uses=1] + %tmp3 = icmp sge i32 %tmp2, 0; <i1> [#uses=1] + %retval = select i1 %tmp3, i32 %a, i32 0 ; <i32> [#uses=1] + ret i32 %retval +} + +define i32 @baz(i32 %a) { +entry: + %tmp2 = sub i32 99, %a ; <i32> [#uses=1] + %tmp3 = icmp slt i32 %tmp2, 1 ; <i1> [#uses=1] + %retval = select i1 %tmp3, i32 %a, i32 0 ; <i32> [#uses=1] + ret i32 %retval +}
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