diff options
Diffstat (limited to 'llvm/test/Transforms/InstCombine/2007-12-18-AddSelCmpSub.ll')
| -rw-r--r-- | llvm/test/Transforms/InstCombine/2007-12-18-AddSelCmpSub.ll | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/llvm/test/Transforms/InstCombine/2007-12-18-AddSelCmpSub.ll b/llvm/test/Transforms/InstCombine/2007-12-18-AddSelCmpSub.ll new file mode 100644 index 00000000000..ef38eee30e2 --- /dev/null +++ b/llvm/test/Transforms/InstCombine/2007-12-18-AddSelCmpSub.ll @@ -0,0 +1,38 @@ +; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep {sub} + +define i32 @foo(i32 %a) { +entry: + %tmp15 = sub i32 99, %a ; <i32> [#uses=2] + %tmp16 = icmp slt i32 %tmp15, 0 ; <i1> [#uses=1] + %smax = select i1 %tmp16, i32 0, i32 %tmp15 ; <i32> [#uses=1] + %tmp12 = add i32 %smax, %a ; <i32> [#uses=1] + %tmp13 = add i32 %tmp12, 1 ; <i32> [#uses=1] + ret i32 %tmp13 +} + +define i32 @bar(i32 %a) { +entry: + %tmp15 = sub i32 99, %a ; <i32> [#uses=2] + %tmp16 = icmp slt i32 %tmp15, 0 ; <i1> [#uses=1] + %smax = select i1 %tmp16, i32 0, i32 %tmp15 ; <i32> [#uses=1] + %tmp12 = add i32 %smax, %a ; <i32> [#uses=1] + ret i32 %tmp12 +} + +define i32 @baz(i32 %a) { +entry: + %tmp15 = sub i32 99, %a ; <i32> [#uses=1] + %tmp16 = icmp slt i32 %tmp15, 0 ; <i1> [#uses=1] + %smax = select i1 %tmp16, i32 0, i32 42 ; <i32> [#uses=1] + %tmp12 = add i32 %smax, %a ; <i32> [#uses=1] + ret i32 %tmp12 +} + +define i32 @fun(i32 %a) { +entry: + %tmp15 = sub i32 99, %a ; <i32> [#uses=1] + %tmp16 = icmp slt i32 %a, 0 ; <i1> [#uses=1] + %smax = select i1 %tmp16, i32 0, i32 %tmp15 ; <i32> [#uses=1] + %tmp12 = add i32 %smax, %a ; <i32> [#uses=1] + ret i32 %tmp12 +}
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