diff options
| author | Roman Divacky <rdivacky@FreeBSD.org> | 2010-01-23 11:09:33 +0000 |
|---|---|---|
| committer | Roman Divacky <rdivacky@FreeBSD.org> | 2010-01-23 11:09:33 +0000 |
| commit | 989df958a10f0beb90b89ccadd8351cbe51d90b1 (patch) | |
| tree | 74eecbae571601ec6a626a53374b1eddc7b164a5 /test/Transforms/Reassociate | |
| parent | 829000e035f46f2a227a5466e4e427a2f3cc00a9 (diff) | |
Notes
Diffstat (limited to 'test/Transforms/Reassociate')
| -rw-r--r-- | test/Transforms/Reassociate/inverses.ll | 32 |
1 files changed, 19 insertions, 13 deletions
diff --git a/test/Transforms/Reassociate/inverses.ll b/test/Transforms/Reassociate/inverses.ll index fa1a4bd1d01e..34abdc7aae0d 100644 --- a/test/Transforms/Reassociate/inverses.ll +++ b/test/Transforms/Reassociate/inverses.ll @@ -1,28 +1,34 @@ -; RUN: opt < %s -reassociate -dce -S | \ -; RUN: not grep {\\(and\\|sub\\)} +; RUN: opt < %s -reassociate -die -S | FileCheck %s define i32 @test1(i32 %a, i32 %b) { - %tmp.2 = and i32 %b, %a ; <i32> [#uses=1] - %tmp.4 = xor i32 %a, -1 ; <i32> [#uses=1] + %tmp.2 = and i32 %b, %a + %tmp.4 = xor i32 %a, -1 ; (A&B)&~A == 0 - %tmp.5 = and i32 %tmp.2, %tmp.4 ; <i32> [#uses=1] + %tmp.5 = and i32 %tmp.2, %tmp.4 ret i32 %tmp.5 +; CHECK: @test1 +; CHECK: ret i32 0 } define i32 @test2(i32 %a, i32 %b) { - %tmp.1 = and i32 %a, 1234 ; <i32> [#uses=1] - %tmp.2 = and i32 %b, %tmp.1 ; <i32> [#uses=1] - %tmp.4 = xor i32 %a, -1 ; <i32> [#uses=1] + %tmp.1 = and i32 %a, 1234 + %tmp.2 = and i32 %b, %tmp.1 + %tmp.4 = xor i32 %a, -1 ; A&~A == 0 - %tmp.5 = and i32 %tmp.2, %tmp.4 ; <i32> [#uses=1] + %tmp.5 = and i32 %tmp.2, %tmp.4 ret i32 %tmp.5 +; CHECK: @test2 +; CHECK: ret i32 0 } define i32 @test3(i32 %b, i32 %a) { - %tmp.1 = add i32 %a, 1234 ; <i32> [#uses=1] - %tmp.2 = add i32 %b, %tmp.1 ; <i32> [#uses=1] - %tmp.4 = sub i32 0, %a ; <i32> [#uses=1] + %tmp.1 = add i32 %a, 1234 + %tmp.2 = add i32 %b, %tmp.1 + %tmp.4 = sub i32 0, %a ; (b+(a+1234))+-a -> b+1234 - %tmp.5 = add i32 %tmp.2, %tmp.4 ; <i32> [#uses=1] + %tmp.5 = add i32 %tmp.2, %tmp.4 ret i32 %tmp.5 +; CHECK: @test3 +; CHECK: %tmp.5 = add i32 %b, 1234 +; CHECK: ret i32 %tmp.5 } |
