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| author | Owen Anderson <resistor@mac.com> | 2007-12-28 21:08:43 +0000 |
|---|---|---|
| committer | Owen Anderson <resistor@mac.com> | 2007-12-28 21:08:43 +0000 |
| commit | 3de3f9981e9fec3c4721c47c5a3e9ab9268181c3 (patch) | |
| tree | 9f39894e207e6510e77b3e371c00db7afaafdf85 | |
| parent | 7363914ef7e5351a8a45d0d7c9a75161a9387d36 (diff) | |
| download | bcm5719-llvm-3de3f9981e9fec3c4721c47c5a3e9ab9268181c3.tar.gz bcm5719-llvm-3de3f9981e9fec3c4721c47c5a3e9ab9268181c3.zip | |
Add a testcase for my recent InstCombine fix, written by Nicholas.
llvm-svn: 45386
| -rw-r--r-- | llvm/test/Transforms/InstCombine/2007-12-28-IcmpSub2.ll | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/llvm/test/Transforms/InstCombine/2007-12-28-IcmpSub2.ll b/llvm/test/Transforms/InstCombine/2007-12-28-IcmpSub2.ll new file mode 100644 index 00000000000..5e95993960c --- /dev/null +++ b/llvm/test/Transforms/InstCombine/2007-12-28-IcmpSub2.ll @@ -0,0 +1,89 @@ +; RUN: llvm-as < %s | opt -mem2reg -instcombine | llvm-dis | grep "ret i32 1" | count 8 + +define i32 @test1() { +entry: + %z = alloca i32 + store i32 0, i32* %z + %tmp = load i32* %z + %sub = sub i32 %tmp, 1 + %cmp = icmp ule i32 %sub, 0 + %retval = select i1 %cmp, i32 0, i32 1 + ret i32 %retval +} + +define i32 @test2() { +entry: + %z = alloca i32 + store i32 0, i32* %z + %tmp = load i32* %z + %sub = sub i32 %tmp, 1 + %cmp = icmp ugt i32 %sub, 0 + %retval = select i1 %cmp, i32 1, i32 0 + ret i32 %retval +} + +define i32 @test3() { +entry: + %z = alloca i32 + store i32 0, i32* %z + %tmp = load i32* %z + %sub = sub i32 %tmp, 1 + %cmp = icmp slt i32 %sub, 0 + %retval = select i1 %cmp, i32 1, i32 0 + ret i32 %retval +} + +define i32 @test4() { +entry: + %z = alloca i32 + store i32 0, i32* %z + %tmp = load i32* %z + %sub = sub i32 %tmp, 1 + %cmp = icmp sle i32 %sub, 0 + %retval = select i1 %cmp, i32 1, i32 0 + ret i32 %retval +} + +define i32 @test5() { +entry: + %z = alloca i32 + store i32 0, i32* %z + %tmp = load i32* %z + %sub = sub i32 %tmp, 1 + %cmp = icmp sge i32 %sub, 0 + %retval = select i1 %cmp, i32 0, i32 1 + ret i32 %retval +} + +define i32 @test6() { +entry: + %z = alloca i32 + store i32 0, i32* %z + %tmp = load i32* %z + %sub = sub i32 %tmp, 1 + %cmp = icmp sgt i32 %sub, 0 + %retval = select i1 %cmp, i32 0, i32 1 + ret i32 %retval +} + +define i32 @test7() { +entry: + %z = alloca i32 + store i32 0, i32* %z + %tmp = load i32* %z + %sub = sub i32 %tmp, 1 + %cmp = icmp eq i32 %sub, 0 + %retval = select i1 %cmp, i32 0, i32 1 + ret i32 %retval +} + +define i32 @test8() { +entry: + %z = alloca i32 + store i32 0, i32* %z + %tmp = load i32* %z + %sub = sub i32 %tmp, 1 + %cmp = icmp ne i32 %sub, 0 + %retval = select i1 %cmp, i32 1, i32 0 + ret i32 %retval +}
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