[Bug target/37362] [4.4 Regression] Bootstrap broken on mipsisa64r2-linux-gcc
-- mmitchel at gcc dot gnu dot org changed: What|Removed |Added Priority|P3 |P1 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37362
[Bug target/37362] [4.4 Regression] Bootstrap broken on mipsisa64r2-linux-gcc
--- Comment #2 from jakub at gcc dot gnu dot org 2008-11-05 08:40 --- Can you still reproduce this with current trunk? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37362
[Bug target/37362] [4.4 Regression] Bootstrap broken on mipsisa64r2-linux-gcc
--- Comment #3 from ubizjak at gmail dot com 2008-11-05 10:04 --- I guess this issue can be fixed by following (untested) trivial patch: --cut here-- Index: mips.md === --- mips.md (revision 141602) +++ mips.md (working copy) @@ -4508,7 +4508,7 @@ rtx low = mips_subword (operands[1], 0); rtx high = mips_subword (operands[1], 1); emit_insn (gen_load_low (operands[0], low)); - if (ISA_HAS_MXHC1) + if (TARGET_HARD_FLOAT && ISA_HAS_MXHC1) emit_insn (gen_mthc1 (operands[0], high, operands[0])); else emit_insn (gen_load_high (operands[0], high, operands[0])); @@ -4518,7 +4518,7 @@ rtx low = mips_subword (operands[0], 0); rtx high = mips_subword (operands[0], 1); emit_insn (gen_store_word (low, operands[1], const0_rtx)); - if (ISA_HAS_MXHC1) + if (TARGET_HARD_FLOAT && ISA_HAS_MXHC1) emit_insn (gen_mfhc1 (high, operands[1])); else emit_insn (gen_store_word (high, operands[1], const1_rtx)); --cut here-- Nebu, can you bootstrap and regression test this patch on your target? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37362
[Bug target/37362] [4.4 Regression] Bootstrap broken on mipsisa64r2-linux-gcc
--- Comment #4 from g0dsowncountry at yahoo dot com 2008-11-17 21:39 --- Using top-of-stack GCC and Binutils from Nov 17, issue still present; Applied the below patch and re-tried, no change in behavior. Fails the same way... FYI, This is what I'm using to configure GCC: - ../gcc-svn-111708/configure --prefix=<> --host=i686-host_pc-linux-gnu --target=mipsisa64r2-linux --build=i686-host_pc-linux-gnu --disable-nls --with-newlib --disable-shared --disable-threads --with-gnu-as --with-gnu-ld --disable-soft-float --enable-symvers=gnu --enable-__cxa_atexit --disable-libmudflap --disable-libssp --disable-libffi --disable-libgomp --with-local-prefix=<> --with-sysroot=<> --enable-multilib --enable-languages=c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37362
[Bug target/37362] [4.4 Regression] Bootstrap broken on mipsisa64r2-linux-gcc
--- Comment #5 from ubizjak at gmail dot com 2008-11-18 00:11 --- (In reply to comment #4) > Using top-of-stack GCC and Binutils from Nov 17, issue still present; Applied > the below patch and re-tried, no change in behavior. Fails the same way... This one is tested with a cross and works for me: Index: mips.md === --- mips.md (revision 141951) +++ mips.md (working copy) @@ -4537,7 +4537,7 @@ rtx low = mips_subword (operands[0], 0); rtx high = mips_subword (operands[0], 1); emit_insn (gen_store_word (low, operands[1], const0_rtx)); - if (ISA_HAS_MXHC1) + if (register_operand (high, mode) && ISA_HAS_MXHC1) emit_insn (gen_mfhc1 (high, operands[1])); else emit_insn (gen_store_word (high, operands[1], const1_rtx)); -- ubizjak at gmail dot com changed: What|Removed |Added Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 Last reconfirmed|-00-00 00:00:00 |2008-11-18 00:11:22 date|| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37362
[Bug target/37362] [4.4 Regression] Bootstrap broken on mipsisa64r2-linux-gcc
--- Comment #6 from g0dsowncountry at yahoo dot com 2008-11-18 01:31
---
With the patch in Comment #5, the test case passes; but the GCC Build fails
with the following error message while creating
mipsisa64r2-linux/64/libgcc/_powitf2.o
../../../../gcc-svn-111708/libgcc/../gcc/libgcc2.c: In function '__powitf2':
../../../../gcc-svn-111708/libgcc/../gcc/libgcc2.c:1743: error: insn does not
satisfy its constraints:
(insn 209 208 202 8 ../../../../gcc-svn-111708/libgcc/../gcc/libgcc2.c:1742
(set (reg:TF 44 $f12)
(unspec:TF [
(mem/u/c/i:DI (lo_sum:DI (reg/f:DI 4 $4 [218])
(symbol_ref/u:DI ("*.LC0") [flags 0x2])) [2 S8 A128])
(reg:TF 44 $f12)
] 32)) 336 {mthc1tf} (expr_list:REG_EQUAL (const_double:TF 1.0e+0
[0x0.8p+1])
(nil)))
../../../../gcc-svn-111708/libgcc/../gcc/libgcc2.c:1743: internal compiler
error: in copyprop_hardreg_forward_1, at regrename.c:1595
Please submit a full bug report,
with preprocessed source if appropriate.
See for instructions.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37362
[Bug target/37362] [4.4 Regression] Bootstrap broken on mipsisa64r2-linux-gcc
--- Comment #7 from ubizjak at gmail dot com 2008-11-18 08:09 --- Created an attachment (id=16716) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16716&action=view) Patch with a testcase This patch solves all issues with mthc1 and mfhc1. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37362
[Bug target/37362] [4.4 Regression] Bootstrap broken on mipsisa64r2-linux-gcc
--- Comment #8 from g0dsowncountry at yahoo dot com 2008-11-18 18:52 --- With Uros's patch in Comment #7, GCC Builds Fine..! -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37362
[Bug target/37362] [4.4 Regression] Bootstrap broken on mipsisa64r2-linux-gcc
--- Comment #9 from uros at gcc dot gnu dot org 2008-11-18 22:01 --- Subject: Bug 37362 Author: uros Date: Tue Nov 18 22:00:12 2008 New Revision: 141978 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=141978 Log: PR target/37362 * config/mips/mips.md (move_doubleword_fpr): Check that "high" is a register or zero operand in the correct mode before generating mtch1 insn or a register operand in the correct mode before generating mfch1 insn. (mtch1): Correct operand 1 predicate to reg_or_0_operand. testsuite/ChangeLog: PR target/37362 * gcc.target/mips/pr37362.c: New test. Added: trunk/gcc/testsuite/gcc.target/mips/pr37362.c Modified: trunk/gcc/ChangeLog trunk/gcc/config/mips/mips.md trunk/gcc/testsuite/ChangeLog -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37362
[Bug target/37362] [4.4 Regression] Bootstrap broken on mipsisa64r2-linux-gcc
--- Comment #10 from ubizjak at gmail dot com 2008-11-18 22:06 --- Fixed. -- ubizjak at gmail dot com changed: What|Removed |Added URL||http://gcc.gnu.org/ml/gcc- ||patches/2008- ||11/msg00920.html Status|NEW |RESOLVED Resolution||FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37362
[Bug target/37362] [4.4 Regression] Bootstrap broken on mipsisa64r2-linux-gcc
-- pinskia at gcc dot gnu dot org changed: What|Removed |Added CC||pinskia at gcc dot gnu dot ||org GCC build triplet|i686-host_pc-linux-gnu | GCC host triplet|i686-host_pc-linux-gnu | Keywords||ice-on-valid-code Target Milestone|--- |4.4.0 Version|unknown |4.4.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37362
[Bug target/37362] [4.4 Regression] Bootstrap broken on mipsisa64r2-linux-gcc
--- Comment #1 from g0dsowncountry at yahoo dot com 2008-09-05 20:46 --- Noticed that if GCC is configured with additional parameters '--with-arch=5kc --with-tune=5kc', PASS 1 build completes (gcc version 4.4.0 20080904 (experimental)). mipsisa64-linux-* builds fine w/o these extra configure options. If this is the intended way to currently configure/build for mipsisa64r2-linux targets, please confirm, so that this could be marked as invalid..? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37362
