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r122049 - in /trunk/gcc: ChangeLog config/i386/...
- From: uros at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Fri, 16 Feb 2007 18:36:02 -0000
- Subject: r122049 - in /trunk/gcc: ChangeLog config/i386/...
Author: uros
Date: Fri Feb 16 18:36:01 2007
New Revision: 122049
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=122049
Log:
* config/i386/i386.h (x86_use_xchgb): New.
(TARGET_USE_XCHGB): New macro.
* config/i386/i386.c (x86_use_xchgb): Set for PENT4.
* config/i386/i386.md (*rotlhi3_1 splitter, *rotrhi3_1 splitter):
Split after reload into bswaphi for shifts of 8.
(bswaphi_lowpart): Generate rolw insn for HImode byte swaps.
(*bswaphi_lowpart_1): Generate xchgb for Q registers for TARGET_XCHGB
or when optimizing for size.
testsuite/ChangeLog:
* gcc.target/i386/builtin-bswap-1.c: Remove -march=nocona.
* gcc.target/i386/builtin-bswap-3.c: Ditto.
* gcc.target/i386/xchg-1.c: New test.
* gcc.target/i386/xchg-2.c: New test.
Added:
trunk/gcc/testsuite/gcc.target/i386/xchg-1.c
trunk/gcc/testsuite/gcc.target/i386/xchg-2.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/i386/i386.c
trunk/gcc/config/i386/i386.h
trunk/gcc/config/i386/i386.md
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.target/i386/builtin-bswap-1.c
trunk/gcc/testsuite/gcc.target/i386/builtin-bswap-3.c