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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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