On 07/06/13 14:04, Kyrylo Tkachov wrote:
Oops, once again with patch attached...gcc/ 2013-06-07 Kyrylo Tkachov <kyrylo.tkac...@arm.com> PR target/56315 * config/arm/arm.md (*xordi3_insn): Change to insn_and_split. (xordi3): Change operand 2 constraint to arm_xordi_operand. * config/arm/constraints.md (Dg): New constraint. * config/arm/neon.md (xordi3_neon): Remove. (neon_veor<mode>): Generate xordi3 instead of xordi3_neon. * config/arm/predicates.md (arm_xordi_operand): New predicate. gcc/testsuite/ 2013-06-07 Kyrylo Tkachov <kyrylo.tkac...@arm.com> PR target/56315 * gcc.target/arm/xordi3-opt.c: New test.-----Original Message----- From: gcc-patches-ow...@gcc.gnu.org [mailto:gcc-patches- ow...@gcc.gnu.org] On Behalf Of Kyrylo Tkachov Sent: 07 June 2013 14:03 To: gcc-patches@gcc.gnu.org Cc: Ramana Radhakrishnan; Richard Earnshaw Subject: [PATCH][ARM] PR56315 Improve codegen for DImode immediates - XOR Hi all, In a similar vein to http://gcc.gnu.org/ml/gcc-patches/2013-05/msg01838.html this patch lets us use the immediate forms of the eor instruction when dealing with 64-bit constants. The insn is changed into an insn_and_split and merged with the NEON version. A new constraint is introduced to make sure the pattern accepts the correct range of immediates. Now for code: unsigned long long xor64 (unsigned long long input) { return input ^ 0x200000004ULL; } we generate: eor r0, r0, #4 eor r1, r1, #2 without any mov immediates. Regtested arm-none-eabi on qemu with and without -mthumb. Ok for trunk? Thanks, Kyrill gcc/ 2013-06-07 Kyrylo Tkachov <kyrylo.tkac...@arm.com> PR target/56315 * config/arm/arm.md (*xordi3_insn): Change to insn_and_split. (xordi3): Change operand 2 constraint to arm_xordi_operand. * config/arm/constraints.md (Dg): New constraint. * config/arm/neon.md (xordi3_neon): Remove. (neon_veor<mode>): Generate xordi3 instead of xordi3_neon. * config/arm/predicates.md (arm_xordi_operand): New predicate. gcc/testsuite/ 2013-06-07 Kyrylo Tkachov <kyrylo.tkac...@arm.com> PR target/56315 * gcc.target/arm/xordi3-opt.c: New test.
OK. R.
