diff options
| author | Craig Topper <craig.topper@intel.com> | 2018-09-11 16:51:24 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@intel.com> | 2018-09-11 16:51:24 +0000 |
| commit | a57bb61a3e87bad1d701c1c98fc9d1d6bd6563e4 (patch) | |
| tree | f85e8c786758f2ab4bde6b9e80e16386365da8dd /llvm/test | |
| parent | 49d190f6f8f4e78ac1438c6054ffea087aa85bfd (diff) | |
| download | bcm5719-llvm-a57bb61a3e87bad1d701c1c98fc9d1d6bd6563e4.tar.gz bcm5719-llvm-a57bb61a3e87bad1d701c1c98fc9d1d6bd6563e4.zip | |
[InstCombine] Support (mul (sext x), cst) --> (sext (mul x, cst')) and (mul (zext x), cst) --> (zext (mul x, cst')) for vectors constants.
Similar to D51236, but for mul instead of add.
Differential Revision: https://reviews.llvm.org/D51900
llvm-svn: 341961
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/Transforms/InstCombine/sink-zext.ll | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/llvm/test/Transforms/InstCombine/sink-zext.ll b/llvm/test/Transforms/InstCombine/sink-zext.ll index ed7724d9cc1..25f6d916f6b 100644 --- a/llvm/test/Transforms/InstCombine/sink-zext.ll +++ b/llvm/test/Transforms/InstCombine/sink-zext.ll @@ -214,8 +214,8 @@ define i64 @test8(i32 %V) { define <2 x i64> @test8_splat(<2 x i32> %V) { ; CHECK-LABEL: @test8_splat( ; CHECK-NEXT: [[ASHR:%.*]] = ashr <2 x i32> [[V:%.*]], <i32 16, i32 16> -; CHECK-NEXT: [[SEXT:%.*]] = sext <2 x i32> [[ASHR]] to <2 x i64> -; CHECK-NEXT: [[MUL:%.*]] = mul nsw <2 x i64> [[SEXT]], <i64 32767, i64 32767> +; CHECK-NEXT: [[MULCONV:%.*]] = mul nsw <2 x i32> [[ASHR]], <i32 32767, i32 32767> +; CHECK-NEXT: [[MUL:%.*]] = sext <2 x i32> [[MULCONV]] to <2 x i64> ; CHECK-NEXT: ret <2 x i64> [[MUL]] ; %ashr = ashr <2 x i32> %V, <i32 16, i32 16> @@ -227,8 +227,8 @@ define <2 x i64> @test8_splat(<2 x i32> %V) { define <2 x i64> @test8_vec(<2 x i32> %V) { ; CHECK-LABEL: @test8_vec( ; CHECK-NEXT: [[ASHR:%.*]] = ashr <2 x i32> [[V:%.*]], <i32 16, i32 16> -; CHECK-NEXT: [[SEXT:%.*]] = sext <2 x i32> [[ASHR]] to <2 x i64> -; CHECK-NEXT: [[MUL:%.*]] = mul nsw <2 x i64> [[SEXT]], <i64 32767, i64 16384> +; CHECK-NEXT: [[MULCONV:%.*]] = mul nsw <2 x i32> [[ASHR]], <i32 32767, i32 16384> +; CHECK-NEXT: [[MUL:%.*]] = sext <2 x i32> [[MULCONV]] to <2 x i64> ; CHECK-NEXT: ret <2 x i64> [[MUL]] ; %ashr = ashr <2 x i32> %V, <i32 16, i32 16> @@ -240,8 +240,8 @@ define <2 x i64> @test8_vec(<2 x i32> %V) { define <2 x i64> @test8_vec2(<2 x i32> %V) { ; CHECK-LABEL: @test8_vec2( ; CHECK-NEXT: [[ASHR:%.*]] = ashr <2 x i32> [[V:%.*]], <i32 16, i32 16> -; CHECK-NEXT: [[SEXT:%.*]] = sext <2 x i32> [[ASHR]] to <2 x i64> -; CHECK-NEXT: [[MUL:%.*]] = mul nsw <2 x i64> [[SEXT]], <i64 32767, i64 -32767> +; CHECK-NEXT: [[MULCONV:%.*]] = mul nsw <2 x i32> [[ASHR]], <i32 32767, i32 -32767> +; CHECK-NEXT: [[MUL:%.*]] = sext <2 x i32> [[MULCONV]] to <2 x i64> ; CHECK-NEXT: ret <2 x i64> [[MUL]] ; %ashr = ashr <2 x i32> %V, <i32 16, i32 16> @@ -266,8 +266,8 @@ define i64 @test9(i32 %V) { define <2 x i64> @test9_splat(<2 x i32> %V) { ; CHECK-LABEL: @test9_splat( ; CHECK-NEXT: [[ASHR:%.*]] = ashr <2 x i32> [[V:%.*]], <i32 16, i32 16> -; CHECK-NEXT: [[SEXT:%.*]] = sext <2 x i32> [[ASHR]] to <2 x i64> -; CHECK-NEXT: [[MUL:%.*]] = mul nsw <2 x i64> [[SEXT]], <i64 -32767, i64 -32767> +; CHECK-NEXT: [[MULCONV:%.*]] = mul nsw <2 x i32> [[ASHR]], <i32 -32767, i32 -32767> +; CHECK-NEXT: [[MUL:%.*]] = sext <2 x i32> [[MULCONV]] to <2 x i64> ; CHECK-NEXT: ret <2 x i64> [[MUL]] ; %ashr = ashr <2 x i32> %V, <i32 16, i32 16> @@ -279,8 +279,8 @@ define <2 x i64> @test9_splat(<2 x i32> %V) { define <2 x i64> @test9_vec(<2 x i32> %V) { ; CHECK-LABEL: @test9_vec( ; CHECK-NEXT: [[ASHR:%.*]] = ashr <2 x i32> [[V:%.*]], <i32 16, i32 16> -; CHECK-NEXT: [[SEXT:%.*]] = sext <2 x i32> [[ASHR]] to <2 x i64> -; CHECK-NEXT: [[MUL:%.*]] = mul nsw <2 x i64> [[SEXT]], <i64 -32767, i64 -10> +; CHECK-NEXT: [[MULCONV:%.*]] = mul nsw <2 x i32> [[ASHR]], <i32 -32767, i32 -10> +; CHECK-NEXT: [[MUL:%.*]] = sext <2 x i32> [[MULCONV]] to <2 x i64> ; CHECK-NEXT: ret <2 x i64> [[MUL]] ; %ashr = ashr <2 x i32> %V, <i32 16, i32 16> @@ -305,8 +305,8 @@ define i64 @test10(i32 %V) { define <2 x i64> @test10_splat(<2 x i32> %V) { ; CHECK-LABEL: @test10_splat( ; CHECK-NEXT: [[LSHR:%.*]] = lshr <2 x i32> [[V:%.*]], <i32 16, i32 16> -; CHECK-NEXT: [[ZEXT:%.*]] = zext <2 x i32> [[LSHR]] to <2 x i64> -; CHECK-NEXT: [[MUL:%.*]] = mul nuw nsw <2 x i64> [[ZEXT]], <i64 65535, i64 65535> +; CHECK-NEXT: [[MULCONV:%.*]] = mul nuw <2 x i32> [[LSHR]], <i32 65535, i32 65535> +; CHECK-NEXT: [[MUL:%.*]] = zext <2 x i32> [[MULCONV]] to <2 x i64> ; CHECK-NEXT: ret <2 x i64> [[MUL]] ; %lshr = lshr <2 x i32> %V, <i32 16, i32 16> @@ -318,8 +318,8 @@ define <2 x i64> @test10_splat(<2 x i32> %V) { define <2 x i64> @test10_vec(<2 x i32> %V) { ; CHECK-LABEL: @test10_vec( ; CHECK-NEXT: [[LSHR:%.*]] = lshr <2 x i32> [[V:%.*]], <i32 16, i32 16> -; CHECK-NEXT: [[ZEXT:%.*]] = zext <2 x i32> [[LSHR]] to <2 x i64> -; CHECK-NEXT: [[MUL:%.*]] = mul nuw nsw <2 x i64> [[ZEXT]], <i64 65535, i64 2> +; CHECK-NEXT: [[MULCONV:%.*]] = mul nuw <2 x i32> [[LSHR]], <i32 65535, i32 2> +; CHECK-NEXT: [[MUL:%.*]] = zext <2 x i32> [[MULCONV]] to <2 x i64> ; CHECK-NEXT: ret <2 x i64> [[MUL]] ; %lshr = lshr <2 x i32> %V, <i32 16, i32 16> |
