diff options
Diffstat (limited to 'test/Transforms/InstCombine/sub.ll')
| -rw-r--r-- | test/Transforms/InstCombine/sub.ll | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/test/Transforms/InstCombine/sub.ll b/test/Transforms/InstCombine/sub.ll index ba28910f4c03..fa0322a44e80 100644 --- a/test/Transforms/InstCombine/sub.ll +++ b/test/Transforms/InstCombine/sub.ll @@ -223,8 +223,8 @@ define i32 @test23(i8* %P, i64 %A){ %G = sub i32 %D, %F ret i32 %G ; CHECK: @test23 -; CHECK: %A1 = trunc i64 %A to i32 -; CHECK: ret i32 %A1 +; CHECK-NEXT: = trunc i64 %A to i32 +; CHECK-NEXT: ret i32 } define i64 @test24(i8* %P, i64 %A){ @@ -248,3 +248,28 @@ define i64 @test24a(i8* %P, i64 %A){ ; CHECK-NEXT: ret i64 } +@Arr = external global [42 x i16] + +define i64 @test24b(i8* %P, i64 %A){ + %B = getelementptr inbounds [42 x i16]* @Arr, i64 0, i64 %A + %C = ptrtoint i16* %B to i64 + %G = sub i64 %C, ptrtoint ([42 x i16]* @Arr to i64) + ret i64 %G +; CHECK: @test24b +; CHECK-NEXT: shl i64 %A, 1 +; CHECK-NEXT: ret i64 +} + + +define i64 @test25(i8* %P, i64 %A){ + %B = getelementptr inbounds [42 x i16]* @Arr, i64 0, i64 %A + %C = ptrtoint i16* %B to i64 + %G = sub i64 %C, ptrtoint (i16* getelementptr ([42 x i16]* @Arr, i64 1, i64 0) to i64) + ret i64 %G +; CHECK: @test25 +; CHECK-NEXT: shl i64 %A, 1 +; CHECK-NEXT: add i64 {{.*}}, -84 +; CHECK-NEXT: ret i64 +} + + |