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| author | Sanjay Patel <spatel@rotateright.com> | 2016-06-04 21:20:03 +0000 |
|---|---|---|
| committer | Sanjay Patel <spatel@rotateright.com> | 2016-06-04 21:20:03 +0000 |
| commit | 4c42211c6fccce7adbeb2086d7e9a6e0e3dd9ef8 (patch) | |
| tree | 89b2bd7b4b19a92f5d0f5b0087ccbc0b20f40de2 /llvm/test/Transforms/InstCombine/signed-comparison.ll | |
| parent | 58a92a327d1f2d024f7726aa1fad0ccd1973c1e3 (diff) | |
| download | bcm5719-llvm-4c42211c6fccce7adbeb2086d7e9a6e0e3dd9ef8.tar.gz bcm5719-llvm-4c42211c6fccce7adbeb2086d7e9a6e0e3dd9ef8.zip | |
[InstCombine] add test for missing vector optimization
llvm-svn: 271806
Diffstat (limited to 'llvm/test/Transforms/InstCombine/signed-comparison.ll')
| -rw-r--r-- | llvm/test/Transforms/InstCombine/signed-comparison.ll | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/llvm/test/Transforms/InstCombine/signed-comparison.ll b/llvm/test/Transforms/InstCombine/signed-comparison.ll index 17dd0dba8a3..5092ce713b7 100644 --- a/llvm/test/Transforms/InstCombine/signed-comparison.ll +++ b/llvm/test/Transforms/InstCombine/signed-comparison.ll @@ -3,8 +3,8 @@ ; Convert the zext+slt into a simple ult. -define i1 @foo(i16 %t4) { -; CHECK-LABEL: @foo( +define i1 @scalar_zext_slt(i16 %t4) { +; CHECK-LABEL: @scalar_zext_slt( ; CHECK-NEXT: [[T6:%.*]] = icmp ult i16 %t4, 500 ; CHECK-NEXT: ret i1 [[T6]] ; @@ -12,3 +12,17 @@ define i1 @foo(i16 %t4) { %t6 = icmp slt i32 %t5, 500 ret i1 %t6 } + +; FIXME: Vector compare should work the same as scalar. + +define <4 x i1> @vector_zext_slt(<4 x i16> %t4) { +; CHECK-LABEL: @vector_zext_slt( +; CHECK-NEXT: [[T5:%.*]] = zext <4 x i16> %t4 to <4 x i32> +; CHECK-NEXT: [[T6:%.*]] = icmp ult <4 x i32> [[T5]], <i32 500, i32 0, i32 501, i32 65535> +; CHECK-NEXT: ret <4 x i1> [[T6]] +; + %t5 = zext <4 x i16> %t4 to <4 x i32> + %t6 = icmp slt <4 x i32> %t5, <i32 500, i32 0, i32 501, i32 65535> + ret <4 x i1> %t6 +} + |
