llvm-project

Commit Graph

Author	SHA1	Message	Date
Benjamin Kramer	7bd6bee385	Legalizer: Make bswap promotion safe for vectors. llvm-svn: 209202	2014-05-20 09:42:31 +00:00
Benjamin Kramer	f3ad23551d	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	2014-05-19 13:12:38 +00:00
Hal Finkel	5c968d9440	Expand vector bswap in LegalizeVectorOps ISD::BSWAP was missing from the list of node types that should be expanded element-wise. llvm-svn: 200705	2014-02-03 17:27:25 +00:00

Author

SHA1

Message

Date

Benjamin Kramer

7bd6bee385

Legalizer: Make bswap promotion safe for vectors.

llvm-svn: 209202

2014-05-20 09:42:31 +00:00

Benjamin Kramer

f3ad23551d

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

2014-05-19 13:12:38 +00:00

Hal Finkel

5c968d9440

Expand vector bswap in LegalizeVectorOps

ISD::BSWAP was missing from the list of node types that should be expanded
element-wise.

llvm-svn: 200705

2014-02-03 17:27:25 +00:00

3 Commits