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author | Owen Anderson <resistor@mac.com> | 2010-08-02 09:32:13 +0000 |
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committer | Owen Anderson <resistor@mac.com> | 2010-08-02 09:32:13 +0000 |
commit | 61378363b76ad84dc7effff506d7c3e991225743 (patch) | |
tree | 1a756a5ba9d8ec9327bd8f6a1270ea9cf01281aa /test/Transforms/InstCombine/bit-checks.ll | |
parent | 82fe467ca59094c19c500038f0a282b70daa1d00 (diff) | |
download | llvm-61378363b76ad84dc7effff506d7c3e991225743.tar.gz llvm-61378363b76ad84dc7effff506d7c3e991225743.tar.bz2 llvm-61378363b76ad84dc7effff506d7c3e991225743.tar.xz |
Re-apply the infamous r108614, with a fix pointed out by Dirk Steinke.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110036 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/InstCombine/bit-checks.ll')
-rw-r--r-- | test/Transforms/InstCombine/bit-checks.ll | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/bit-checks.ll b/test/Transforms/InstCombine/bit-checks.ll new file mode 100644 index 0000000000..d774c0972d --- /dev/null +++ b/test/Transforms/InstCombine/bit-checks.ll @@ -0,0 +1,26 @@ +; This test makes sure that these instructions are properly eliminated. +; +; RUN: opt < %s -instcombine -S | \ +; RUN: not grep {tobool} +; END. +define i32 @main(i32 %argc, i8** %argv) nounwind ssp { +entry: + %and = and i32 %argc, 1 ; <i32> [#uses=1] + %tobool = icmp ne i32 %and, 0 ; <i1> [#uses=1] + %and2 = and i32 %argc, 2 ; <i32> [#uses=1] + %tobool3 = icmp ne i32 %and2, 0 ; <i1> [#uses=1] + %or.cond = and i1 %tobool, %tobool3 ; <i1> [#uses=1] + %retval.0 = select i1 %or.cond, i32 2, i32 1 ; <i32> [#uses=1] + ret i32 %retval.0 +} + +define i32 @main2(i32 %argc, i8** nocapture %argv) nounwind readnone ssp { +entry: + %and = and i32 %argc, 1 ; <i32> [#uses=1] + %tobool = icmp eq i32 %and, 0 ; <i1> [#uses=1] + %and2 = and i32 %argc, 2 ; <i32> [#uses=1] + %tobool3 = icmp eq i32 %and2, 0 ; <i1> [#uses=1] + %or.cond = or i1 %tobool, %tobool3 ; <i1> [#uses=1] + %storemerge = select i1 %or.cond, i32 0, i32 1 ; <i32> [#uses=1] + ret i32 %storemerge +}
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