llvm-project

Commit Graph

Author	SHA1	Message	Date
Andrew Trick	0ed5778a1e	Thumb2 and ARM add/subtract with carry fixes. Fixes Thumb2 ADCS and SBCS lowering: <rdar://problem/9275821>. t2ADCS/t2SBCS are now pseudo instructions, consistent with ARM, so the assembly printer correctly prints the 's' suffix. Fixes Thumb2 adde -> SBC matching to check for live/dead carry flags. Fixes the internal ARM machine opcode mnemonic for ADCS/SBCS. Fixes ARM SBC lowering to check for live carry (potential bug). llvm-svn: 130048	2011-04-23 03:55:32 +00:00
Jim Grosbach	a90af1ba38	Improve 64-subtraction of immediates when parts of the immediate can fit in the literal field of an instruction. E.g., long long foo(long long a) { return a - 734439407618LL; } rdar://7038284 llvm-svn: 108339	2010-07-14 17:45:16 +00:00

Author

SHA1

Message

Date

Andrew Trick

0ed5778a1e

Thumb2 and ARM add/subtract with carry fixes.

Fixes Thumb2 ADCS and SBCS lowering: <rdar://problem/9275821>.
t2ADCS/t2SBCS are now pseudo instructions, consistent with ARM, so the
assembly printer correctly prints the 's' suffix.

Fixes Thumb2 adde -> SBC matching to check for live/dead carry flags.

Fixes the internal ARM machine opcode mnemonic for ADCS/SBCS.
Fixes ARM SBC lowering to check for live carry (potential bug).

llvm-svn: 130048

2011-04-23 03:55:32 +00:00

Jim Grosbach

a90af1ba38

Improve 64-subtraction of immediates when parts of the immediate can fit

in the literal field of an instruction. E.g.,
long long foo(long long a) {
  return a - 734439407618LL;
}

rdar://7038284

llvm-svn: 108339

2010-07-14 17:45:16 +00:00

2 Commits