diff options
Diffstat (limited to 'test/Transforms/Reassociate/negation.ll')
| -rw-r--r-- | test/Transforms/Reassociate/negation.ll | 36 |
1 files changed, 23 insertions, 13 deletions
diff --git a/test/Transforms/Reassociate/negation.ll b/test/Transforms/Reassociate/negation.ll index 6a3dfd3..12d2c86 100644 --- a/test/Transforms/Reassociate/negation.ll +++ b/test/Transforms/Reassociate/negation.ll @@ -1,21 +1,31 @@ -; RUN: opt < %s -reassociate -instcombine -S | not grep sub +; RUN: opt < %s -reassociate -instcombine -S | FileCheck %s ; Test that we can turn things like X*-(Y*Z) -> X*-1*Y*Z. define i32 @test1(i32 %a, i32 %b, i32 %z) { - %c = sub i32 0, %z ; <i32> [#uses=1] - %d = mul i32 %a, %b ; <i32> [#uses=1] - %e = mul i32 %c, %d ; <i32> [#uses=1] - %f = mul i32 %e, 12345 ; <i32> [#uses=1] - %g = sub i32 0, %f ; <i32> [#uses=1] - ret i32 %g +; CHECK-LABEL: test1 +; CHECK-NEXT: %e = mul i32 %a, 12345 +; CHECK-NEXT: %f = mul i32 %e, %b +; CHECK-NEXT: %g = mul i32 %f, %z +; CHECK-NEXT: ret i32 %g + + %c = sub i32 0, %z + %d = mul i32 %a, %b + %e = mul i32 %c, %d + %f = mul i32 %e, 12345 + %g = sub i32 0, %f + ret i32 %g } define i32 @test2(i32 %a, i32 %b, i32 %z) { - %d = mul i32 %z, 40 ; <i32> [#uses=1] - %c = sub i32 0, %d ; <i32> [#uses=1] - %e = mul i32 %a, %c ; <i32> [#uses=1] - %f = sub i32 0, %e ; <i32> [#uses=1] - ret i32 %f -} +; CHECK-LABEL: test2 +; CHECK-NEXT: %e = mul i32 %a, 40 +; CHECK-NEXT: %f = mul i32 %e, %z +; CHECK-NEXT: ret i32 %f + %d = mul i32 %z, 40 + %c = sub i32 0, %d + %e = mul i32 %a, %c + %f = sub i32 0, %e + ret i32 %f +} |