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| author | Jim Wilson <wilson@cygnus.com> | 1998-10-13 17:52:36 +0000 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 1998-10-13 10:52:36 -0700 |
| commit | 619aeb96118a16f7eced72de3d4606d04f8ddb3a (patch) | |
| tree | 2a472c03574f0c7981a4c23316a01bb64adee6ba /gcc | |
| parent | 160a655e211aac8dcc34c3614b0d6624e0d79cd2 (diff) | |
| download | gcc-619aeb96118a16f7eced72de3d4606d04f8ddb3a.zip gcc-619aeb96118a16f7eced72de3d4606d04f8ddb3a.tar.gz gcc-619aeb96118a16f7eced72de3d4606d04f8ddb3a.tar.bz2 | |
Fix for m68k -O0 libstdc++ compiler abort.
* config/m68k/m68k.h (HARD_REGNO_MODE_OK): For FP regs, add REGNO >= 16
check. Add comment to document problems with TARGET_SUN_FPA version
of this macro.
* config/m68k/m68k.md (movxf+1): Support 'r'/'r' moves.
From-SVN: r23056
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/config/m68k/m68k.h | 9 | ||||
| -rw-r--r-- | gcc/config/m68k/m68k.md | 23 |
3 files changed, 28 insertions, 11 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 24f62e8..fa0cf17 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +Tue Oct 13 17:51:04 1998 Jim Wilson <wilson@cygnus.com> + + * config/m68k/m68k.h (HARD_REGNO_MODE_OK): For FP regs, add REGNO >= 16 + check. Add comment to document problems with TARGET_SUN_FPA version + of this macro. + * config/m68k/m68k.md (movxf+1): Support 'r'/'r' moves. + Tue Oct 13 17:46:18 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> * Makefile.in (gencheck.o): Depend on gansidecl.h. diff --git a/gcc/config/m68k/m68k.h b/gcc/config/m68k/m68k.h index a4bfef9..42eb793 100644 --- a/gcc/config/m68k/m68k.h +++ b/gcc/config/m68k/m68k.h @@ -471,8 +471,8 @@ extern int target_flags; #define HARD_REGNO_MODE_OK(REGNO, MODE) \ (((REGNO) < 16 \ - && !((REGNO) < 8 && (REGNO) + GET_MODE_SIZE ((MODE)) / 4 > 8)) \ - || ((REGNO) < 24 \ + && !((REGNO) < 8 && (REGNO) + GET_MODE_SIZE (MODE) / 4 > 8)) \ + || ((REGNO) >= 16 && (REGNO) < 24 \ && TARGET_68881 \ && (GET_MODE_CLASS (MODE) == MODE_FLOAT \ || GET_MODE_CLASS (MODE) == MODE_COMPLEX_FLOAT))) @@ -486,6 +486,11 @@ extern int target_flags; (apparently) hold whatever you feel like putting in them. If using the fpa, don't put a double in d7/a0. */ +/* ??? This is confused. The check to prohibit d7/a0 overlaps should always + be enabled regardless of whether TARGET_FPA is specified. It isn't clear + what the other d/a register checks are for. Every check using REGNO + actually needs to use a range, e.g. 24>=X<56 not <56. There is probably + no one using this code anymore. */ #define HARD_REGNO_MODE_OK(REGNO, MODE) \ (((REGNO) < 16 \ && !(TARGET_FPA \ diff --git a/gcc/config/m68k/m68k.md b/gcc/config/m68k/m68k.md index dfe0cbc..a648ec8 100644 --- a/gcc/config/m68k/m68k.md +++ b/gcc/config/m68k/m68k.md @@ -1224,8 +1224,8 @@ }") (define_insn "" - [(set (match_operand:XF 0 "nonimmediate_operand" "=f,m,f,!r,!f") - (match_operand:XF 1 "nonimmediate_operand" "m,f,f,f,r"))] + [(set (match_operand:XF 0 "nonimmediate_operand" "=f,m,f,!r,!f,!r") + (match_operand:XF 1 "nonimmediate_operand" "m,f,f,f,r,!r"))] "TARGET_68881" "* { @@ -1247,15 +1247,20 @@ return \"fmove%.x %1,%0\"; return \"fmove%.x %f1,%0\"; } - if (REG_P (operands[0])) + if (FP_REG_P (operands[1])) { - output_asm_insn (\"fmove%.x %f1,%-\;move%.l %+,%0\", operands); - operands[0] = gen_rtx_REG (SImode, REGNO (operands[0]) + 1); - output_asm_insn (\"move%.l %+,%0\", operands); - operands[0] = gen_rtx_REG (SImode, REGNO (operands[0]) + 1); - return \"move%.l %+,%0\"; + if (REG_P (operands[0])) + { + output_asm_insn (\"fmove%.x %f1,%-\;move%.l %+,%0\", operands); + operands[0] = gen_rtx_REG (SImode, REGNO (operands[0]) + 1); + output_asm_insn (\"move%.l %+,%0\", operands); + operands[0] = gen_rtx_REG (SImode, REGNO (operands[0]) + 1); + return \"move%.l %+,%0\"; + } + /* Must be memory destination. */ + return \"fmove%.x %f1,%0\"; } - return \"fmove%.x %f1,%0\"; + return output_move_double (operands); } ") |