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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2014-05-19 13:12:38 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2014-05-19 13:12:38 +0000 |
| commit | f3ad23551ddf178496892c0e42d6df380ec13c89 (patch) | |
| tree | c5d11954de565bc87ff68df835d5f322c20ff295 /llvm/test/CodeGen/ARM64 | |
| parent | a3afc69b949768a3aa01865132d9e5bf22a7fe2d (diff) | |
| download | bcm5719-llvm-f3ad23551ddf178496892c0e42d6df380ec13c89.tar.gz bcm5719-llvm-f3ad23551ddf178496892c0e42d6df380ec13c89.zip | |
SDAG: Legalize vector BSWAP into a shuffle if the shuffle is legal but the bswap not.
- On ARM/ARM64 we get a vrev because the shuffle matching code is really smart. We still unroll anything that's not v4i32 though.
- On X86 we get a pshufb with SSSE3. Required more cleverness in isShuffleMaskLegal.
- On PPC we get a vperm for v8i16 and v4i32. v2i64 is unrolled.
llvm-svn: 209123
Diffstat (limited to 'llvm/test/CodeGen/ARM64')
| -rw-r--r-- | llvm/test/CodeGen/ARM64/rev.ll | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/ARM64/rev.ll b/llvm/test/CodeGen/ARM64/rev.ll index 0006ea33175..1da59e42f6b 100644 --- a/llvm/test/CodeGen/ARM64/rev.ll +++ b/llvm/test/CodeGen/ARM64/rev.ll @@ -222,3 +222,14 @@ entry: ret void } + +define <4 x i32> @test_vrev32_bswap(<4 x i32> %source) nounwind { +; CHECK-LABEL: test_vrev32_bswap: +; CHECK: rev32.16b +; CHECK-NOT: rev +; CHECK: ret + %bswap = call <4 x i32> @llvm.bswap.v4i32(<4 x i32> %source) + ret <4 x i32> %bswap +} + +declare <4 x i32> @llvm.bswap.v4i32(<4 x i32>) nounwind readnone |
