diff options
Diffstat (limited to 'test/Transforms/InstCombine/vec_sext.ll')
| -rw-r--r-- | test/Transforms/InstCombine/vec_sext.ll | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/vec_sext.ll b/test/Transforms/InstCombine/vec_sext.ll new file mode 100644 index 0000000..d7ab96b --- /dev/null +++ b/test/Transforms/InstCombine/vec_sext.ll @@ -0,0 +1,22 @@ +; RUN: opt < %s -instcombine -S | FileCheck %s + +define <4 x i32> @psignd_3(<4 x i32> %a, <4 x i32> %b) nounwind ssp { +entry: + %cmp = icmp slt <4 x i32> %b, zeroinitializer + %sext = sext <4 x i1> %cmp to <4 x i32> + %sub = sub nsw <4 x i32> zeroinitializer, %a + %0 = icmp slt <4 x i32> %sext, zeroinitializer + %sext3 = sext <4 x i1> %0 to <4 x i32> + %1 = xor <4 x i32> %sext3, <i32 -1, i32 -1, i32 -1, i32 -1> + %2 = and <4 x i32> %a, %1 + %3 = and <4 x i32> %sext3, %sub + %cond = or <4 x i32> %2, %3 + ret <4 x i32> %cond + +; CHECK: ashr <4 x i32> %b, <i32 31, i32 31, i32 31, i32 31> +; CHECK: sub nsw <4 x i32> zeroinitializer, %a +; CHECK: xor <4 x i32> %b.lobit, <i32 -1, i32 -1, i32 -1, i32 -1> +; CHECK: and <4 x i32> %a, %0 +; CHECK: and <4 x i32> %b.lobit, %sub +; CHECK: or <4 x i32> %1, %2 +} |
