diff options
| author | Pete Cooper <peter_cooper@apple.com> | 2011-11-07 23:04:49 +0000 |
|---|---|---|
| committer | Pete Cooper <peter_cooper@apple.com> | 2011-11-07 23:04:49 +0000 |
| commit | a29fc806fe02cea76f7896b7e344bb919dd7ac25 (patch) | |
| tree | b72cce46844c98a3b20f8cf768908c7683eef16f /test | |
| parent | 1b4f6f2532e9a6a99fcab5fde5b4a2187c9c9c2b (diff) | |
| download | external_llvm-a29fc806fe02cea76f7896b7e344bb919dd7ac25.zip external_llvm-a29fc806fe02cea76f7896b7e344bb919dd7ac25.tar.gz external_llvm-a29fc806fe02cea76f7896b7e344bb919dd7ac25.tar.bz2 | |
InstCombine now optimizes vector udiv by power of 2 to shifts
Fixes r8429
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144036 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/X86/vec_udiv_to_shift.ll | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/test/CodeGen/X86/vec_udiv_to_shift.ll b/test/CodeGen/X86/vec_udiv_to_shift.ll new file mode 100644 index 0000000..e325f61 --- /dev/null +++ b/test/CodeGen/X86/vec_udiv_to_shift.ll @@ -0,0 +1,15 @@ +; RUN: opt < %s -instcombine -S | FileCheck %s + +define <8 x i16> @udiv_vec8x16(<8 x i16> %var) { +entry: +; CHECK: lshr <8 x i16> %var, <i16 5, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5> +%0 = udiv <8 x i16> %var, <i16 32, i16 32, i16 32, i16 32, i16 32, i16 32, i16 32, i16 32> +ret <8 x i16> %0 +} + +define <4 x i32> @udiv_vec4x32(<4 x i32> %var) { +entry: +; CHECK: lshr <4 x i32> %var, <i32 4, i32 4, i32 4, i32 4> +%0 = udiv <4 x i32> %var, <i32 16, i32 16, i32 16, i32 16> +ret <4 x i32> %0 +}
\ No newline at end of file |