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| author | Jan Hubicka <jh@suse.cz> | 2002-03-28 13:25:21 +0100 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2002-03-28 12:25:21 +0000 |
| commit | f5eb5fd0d6e8d476d164c57d4c1ca1248e83c8ee (patch) | |
| tree | c975b4080bd3d5dadf4179b7b9ad2f7233bac1f2 /gcc/rtlanal.c | |
| parent | ac43cbb50723665947ac875f70f0035e09f00680 (diff) | |
| download | gcc-f5eb5fd0d6e8d476d164c57d4c1ca1248e83c8ee.zip gcc-f5eb5fd0d6e8d476d164c57d4c1ca1248e83c8ee.tar.gz gcc-f5eb5fd0d6e8d476d164c57d4c1ca1248e83c8ee.tar.bz2 | |
rtlanal.c: Include flags.h
* rtlanal.c: Include flags.h
(may_trap_p): Do not mark FP operations if trapping
if !flag_trapping_math
* Makefile.in (rtlanal.o): Add dependency on flag.h
* ifcvt.c (noce_operand_ok): Avoid the lameness.
From-SVN: r51508
Diffstat (limited to 'gcc/rtlanal.c')
| -rw-r--r-- | gcc/rtlanal.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c index 79ccf9d..9348fd0 100644 --- a/gcc/rtlanal.c +++ b/gcc/rtlanal.c @@ -28,6 +28,7 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA #include "insn-config.h" #include "recog.h" #include "tm_p.h" +#include "flags.h" /* Forward declarations */ static int global_reg_mentioned_p_1 PARAMS ((rtx *, void *)); @@ -2348,7 +2349,8 @@ may_trap_p (x) case UDIV: case UMOD: if (! CONSTANT_P (XEXP (x, 1)) - || GET_MODE_CLASS (GET_MODE (x)) == MODE_FLOAT) + || (GET_MODE_CLASS (GET_MODE (x)) == MODE_FLOAT + && flag_trapping_math)) return 1; /* This was const0_rtx, but by not using that, we can link this file into other programs. */ @@ -2367,6 +2369,8 @@ may_trap_p (x) case LT: case COMPARE: /* Some floating point comparisons may trap. */ + if (!flag_trapping_math) + break; /* ??? There is no machine independent way to check for tests that trap when COMPARE is used, though many targets do make this distinction. For instance, sparc uses CCFPE for compares which generate exceptions @@ -2387,7 +2391,8 @@ may_trap_p (x) default: /* Any floating arithmetic may trap. */ - if (GET_MODE_CLASS (GET_MODE (x)) == MODE_FLOAT) + if (GET_MODE_CLASS (GET_MODE (x)) == MODE_FLOAT + && flag_trapping_math) return 1; } |