[Bug target/34256] mmx and movd/movq on x86_64
--- Comment #11 from ubizjak at gmail dot com 2008-12-13 19:29 --- (In reply to comment #10) > FAIL: gcc.target/i386/pr34256.c scan-assembler-times mov 4 PR 37364 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34256
[Bug target/34256] mmx and movd/movq on x86_64
--- Comment #10 from howarth at nitro dot med dot uc dot edu 2008-12-13 18:38 --- On i686-apple-darwin9, I have been using... Using built-in specs. Target: i686-apple-darwin9 Configured with: ../gcc-4.4-20081213/configure --prefix=/sw --prefix=/sw/lib/gcc4.4 --mandir=/sw/share/man --infodir=/sw/share/info --enable-languages=c,c++,fortran,objc,java --with-gmp=/sw --with-libiconv-prefix=/sw --with-ppl=/sw --with-cloog=/sw --with-system-zlib --x-includes=/usr/X11R6/include --x-libraries=/usr/X11R6/lib --with-arch=nocona --with-tune=generic --build=i686-apple-darwin9 --host=i686-apple-darwin9 --target=i686-apple-darwin9 Thread model: posix gcc version 4.4.0 20081213 (experimental) (GCC) when the testsuite produces the failure... FAIL: gcc.target/i386/pr34256.c scan-assembler-times mov 4 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34256
[Bug target/34256] mmx and movd/movq on x86_64
--- Comment #9 from howarth at nitro dot med dot uc dot edu 2008-11-17 00:37 --- Created an attachment (id=16704) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16704&action=view) assembly file for gcc.target/i386/pr34256.c at -m64 on i686-apple-darwin9 with -fomit-frame-pointer -- howarth at nitro dot med dot uc dot edu changed: What|Removed |Added Attachment #16691|0 |1 is obsolete|| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34256
[Bug target/34256] mmx and movd/movq on x86_64
--- Comment #8 from howarth at nitro dot med dot uc dot edu 2008-11-17 00:34 --- The gcc.target/i386/pr34256.c test case is still failing as... Executing on host: /sw/src/fink.build/gcc44-4.3.999-20081116/darwin_objdir/gcc/xgcc -B/sw/src/fink.build/gcc44-4.3.999-20081116/darwin_objdir/gcc/ /sw/src/fink.build/gcc44-4.3.999-20081116/gcc-4.4-20081116/gcc/testsuite/gcc.target/i386/pr34256.c -O2 -fomit-frame-pointer -march=core2 -S -m64 -o pr34256.s(timeout = 300) PASS: gcc.target/i386/pr34256.c (test for excess errors) FAIL: gcc.target/i386/pr34256.c scan-assembler-times mov 4 UNSUPPORTED: gcc.target/i386/pr34312.c UNSUPPORTED: gcc.target/i386/pr34522.c UNSUPPORTED: gcc.target/i386/pr35083.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34256
[Bug target/34256] mmx and movd/movq on x86_64
--- Comment #7 from howarth at nitro dot med dot uc dot edu 2008-11-16 00:09 --- Created an attachment (id=16691) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16691&action=view) assembly file generated for gcc.target/i386/pr34256.c at -m64 on i686-apple-darwin9 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34256
[Bug target/34256] mmx and movd/movq on x86_64
--- Comment #6 from howarth at nitro dot med dot uc dot edu 2008-11-16 00:07 --- The gcc.target/i386/pr34256.c test case fails on i686-apple-darwin9 at -m64 as follows... Executing on host: /sw/src/fink.build/gcc44-4.3.999-20081115/darwin_objdir/gcc/xgcc -B/sw/src/fink.build/gcc44-4.3.999-20081115/darwin_objdi r/gcc/ /sw/src/fink.build/gcc44-4.3.999-20081115/gcc-4.4-20081115/gcc/testsuite/gcc.target/i386/pr34256.c -O2 -march=core2 -S -m64 -o pr3 4256.s(timeout = 300) PASS: gcc.target/i386/pr34256.c (test for excess errors) FAIL: gcc.target/i386/pr34256.c scan-assembler-times mov 4 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34256
[Bug target/34256] mmx and movd/movq on x86_64
--- Comment #5 from uros at gcc dot gnu dot org 2008-02-23 15:24 --- Subject: Bug 34256 Author: uros Date: Sat Feb 23 15:24:02 2008 New Revision: 132572 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=132572 Log: PR target/22076 PR target/34256 * config/i386/mmx.md (*mov_internal_rex64): Use "!y" to prevent reload from using MMX registers. (*mov_internal): Ditto. (*movv2sf_internal_rex64): Ditto. (*movv2sf_internal): Ditto. testsuite/ChangeLog: PR target/22076 PR target/34256 * gcc.target/i386/pr22076.c: New test. * gcc.target/i386/pr34256.c: New test. * gcc.target/i386/vecinit-5.c: New test. * gcc.target/i386/vecinit-6.c: New test. * gcc.target/i386/vecinit-[1-4].c: Check that no MMX register is used. * g++.dg/compat/struct-layout-1.h: Do not include and , define __m64 and __m128 directly. * g++.dg/compat/struct-layout-1_generate.c: Add -mno-mmx for x86. Added: trunk/gcc/testsuite/gcc.target/i386/pr22076.c trunk/gcc/testsuite/gcc.target/i386/pr34256.c trunk/gcc/testsuite/gcc.target/i386/vecinit-5.c trunk/gcc/testsuite/gcc.target/i386/vecinit-6.c Modified: trunk/gcc/ChangeLog trunk/gcc/config/i386/mmx.md trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/g++.dg/compat/struct-layout-1.h trunk/gcc/testsuite/g++.dg/compat/struct-layout-1_generate.c trunk/gcc/testsuite/gcc.target/i386/vecinit-1.c trunk/gcc/testsuite/gcc.target/i386/vecinit-2.c trunk/gcc/testsuite/gcc.target/i386/vecinit-3.c trunk/gcc/testsuite/gcc.target/i386/vecinit-4.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34256
[Bug target/34256] mmx and movd/movq on x86_64
--- Comment #4 from ubizjak at gmail dot com 2007-12-10 08:40 --- *** This bug has been marked as a duplicate of 22076 *** -- ubizjak at gmail dot com changed: What|Removed |Added Status|NEW |RESOLVED Resolution||DUPLICATE http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34256
[Bug target/34256] mmx and movd/movq on x86_64
--- Comment #3 from ubizjak at gmail dot com 2007-11-28 12:46 --- Confirmed. -- ubizjak at gmail dot com changed: What|Removed |Added Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 Keywords||patch Last reconfirmed|-00-00 00:00:00 |2007-11-28 12:46:37 date|| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34256
[Bug target/34256] mmx and movd/movq on x86_64
--- Comment #2 from ubizjak at gmail dot com 2007-11-28 12:45 --- Created an attachment (id=14653) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=14653&action=view) Patch to adjust mmx move instructions It looks that mmx move instructions need some tuning. Attached patch fixes your problems and generates (-march=core2): foo: .LFB4: movqx(%rip), %mm0 paddd y(%rip), %mm0 movd%mm0, %rax ret Since these RA adjustments are very fragile, this patch is not appropriate for stage3. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34256
[Bug target/34256] mmx and movd/movq on x86_64
--- Comment #1 from dean at arctic dot org 2007-11-28 01:43 --- this appears to be a regression between gcc 4.1.x and 4.2.x. i had to switch the intrinsic to _mm_cvtsi64_si64x but it otherwise generates the same code on 4.3.x... ubuntu 4.1.2: % objdump -dr movq.o movq.o: file format elf64-x86-64 Disassembly of section .text: : 0: 0f 6f 05 00 00 00 00movq 0(%rip),%mm0# 7 3: R_X86_64_PC32x+0xfffc 7: 0f fe 05 00 00 00 00paddd 0(%rip),%mm0# e a: R_X86_64_PC32y+0xfffc e: 48 0f 7e c0 movd %mm0,%rax 12: c3 retq and 4.2.1: movq.o: file format elf64-x86-64 Disassembly of section .text: : 0: 48 8b 05 00 00 00 00mov0x0(%rip),%rax# 7 3: R_X86_64_PC32x+0xfffc 7: 48 89 44 24 f8 mov%rax,-0x8(%rsp) c: 0f 6f 44 24 f8 movq -0x8(%rsp),%mm0 11: 0f fe 05 00 00 00 00paddd 0x0(%rip),%mm0# 18 14: R_X86_64_PC32 y+0xfffc 18: 0f 7f 44 24 f8 movq %mm0,-0x8(%rsp) 1d: 48 8b 44 24 f8 mov-0x8(%rsp),%rax 22: c3 retq -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34256
