diff options
Diffstat (limited to 'test/Transforms/InstCombine/apint-shift.ll')
| -rw-r--r-- | test/Transforms/InstCombine/apint-shift.ll | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/test/Transforms/InstCombine/apint-shift.ll b/test/Transforms/InstCombine/apint-shift.ll index 0ea73a058c..73f630ebfe 100644 --- a/test/Transforms/InstCombine/apint-shift.ll +++ b/test/Transforms/InstCombine/apint-shift.ll @@ -47,13 +47,21 @@ define i32 @test5a(i32 %A) { } ; CHECK: @test6 -; CHECK-NOT: sh +; CHECK: mul i55 %A, 6 define i55 @test6(i55 %A) { %B = shl i55 %A, 1 ; <i55> [#uses=1] %C = mul i55 %B, 3 ; <i55> [#uses=1] ret i55 %C } +; CHECK: @test6a +; CHECK: mul i55 %A, 6 +define i55 @test6a(i55 %A) { + %B = mul i55 %A, 3 ; <i55> [#uses=1] + %C = shl i55 %B, 1 ; <i55> [#uses=1] + ret i55 %C +} + ; CHECK: @test7 ; CHECK-NOT: sh define i29 @test7(i8 %X) { @@ -87,7 +95,8 @@ define i19 @test10(i19 %A) { } ; CHECK: @test11 -; CHECK-NOT: sh +; Don't hide the shl from scalar evolution. DAGCombine will get it. +; CHECK: shl define i23 @test11(i23 %A) { %a = mul i23 %A, 3 ; <i23> [#uses=1] %B = lshr i23 %a, 11 ; <i23> [#uses=1] @@ -104,7 +113,8 @@ define i47 @test12(i47 %A) { } ; CHECK: @test13 -; CHECK-NOT: sh +; Don't hide the shl from scalar evolution. DAGCombine will get it. +; CHECK: shl define i18 @test13(i18 %A) { %a = mul i18 %A, 3 ; <i18> [#uses=1] %B = ashr i18 %a, 8 ; <i18> [#uses=1] |