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| author | Alexandre Oliva <aoliva@redhat.com> | 2002-03-08 02:57:13 +0000 |
|---|---|---|
| committer | Alexandre Oliva <aoliva@gcc.gnu.org> | 2002-03-08 02:57:13 +0000 |
| commit | 12f61e776a1305b44ec367dcfb25180e2c269024 (patch) | |
| tree | c46be953c6b103efd2f345a73b6bd870fa3efa72 /gcc/config | |
| parent | 4e0020277270d90f7237d372eb86eb7c7b93b4a5 (diff) | |
| download | gcc-12f61e776a1305b44ec367dcfb25180e2c269024.tar.gz | |
gofast.h (GOFAST_RENAME_LIBCALLS): Set gt and ge as NULL_RTX.
* config/gofast.h (GOFAST_RENAME_LIBCALLS): Set gt and ge as
NULL_RTX. Set all HFmode operations as NULL_RTX.
* optabs.c (prepare_float_lib_cmp) <GT, GE, LT, LE>: If libfunc is
NULL_RTX, try reversing the comparison and the operands.
From-SVN: r50422
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/gofast.h | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/gcc/config/gofast.h b/gcc/config/gofast.h index 4c3c0ea9ae8..84e9018784f 100644 --- a/gcc/config/gofast.h +++ b/gcc/config/gofast.h @@ -1,5 +1,5 @@ /* US Software GOFAST floating point library support. - Copyright (C) 1994, 1998, 1999 Free Software Foundation, Inc. + Copyright (C) 1994, 1998, 1999, 2002 Free Software Foundation, Inc. This file is part of GNU CC. @@ -43,6 +43,11 @@ Boston, MA 02111-1307, USA. */ neg_optab->handlers[(int) mode].libfunc = NULL_RTX; \ } while (0) +/* GCC does not use fpcmp/dpcmp for gt or ge because its own + FP-emulation library returns +1 for both > and unord. So we leave + gt and ge unset, such that, instead of fpcmp(a,b) >[=], we generate + fpcmp(b,a) <[=] 0, which is unambiguous. For unord libfuncs, we + use our own functions, since GOFAST doesn't supply them. */ #define GOFAST_RENAME_LIBCALLS \ add_optab->handlers[(int) SFmode].libfunc = init_one_libfunc ("fpadd"); \ add_optab->handlers[(int) DFmode].libfunc = init_one_libfunc ("dpadd"); \ @@ -58,17 +63,24 @@ Boston, MA 02111-1307, USA. */ extendsfdf2_libfunc = init_one_libfunc ("fptodp"); \ truncdfsf2_libfunc = init_one_libfunc ("dptofp"); \ \ + eqhf2_libfunc = NULL_RTX; \ + nehf2_libfunc = NULL_RTX; \ + gthf2_libfunc = NULL_RTX; \ + gehf2_libfunc = NULL_RTX; \ + lthf2_libfunc = NULL_RTX; \ + lehf2_libfunc = NULL_RTX; \ +\ eqsf2_libfunc = init_one_libfunc ("fpcmp"); \ nesf2_libfunc = init_one_libfunc ("fpcmp"); \ - gtsf2_libfunc = init_one_libfunc ("fpcmp"); \ - gesf2_libfunc = init_one_libfunc ("fpcmp"); \ + gtsf2_libfunc = NULL_RTX; \ + gesf2_libfunc = NULL_RTX; \ ltsf2_libfunc = init_one_libfunc ("fpcmp"); \ lesf2_libfunc = init_one_libfunc ("fpcmp"); \ \ eqdf2_libfunc = init_one_libfunc ("dpcmp"); \ nedf2_libfunc = init_one_libfunc ("dpcmp"); \ - gtdf2_libfunc = init_one_libfunc ("dpcmp"); \ - gedf2_libfunc = init_one_libfunc ("dpcmp"); \ + gtdf2_libfunc = NULL_RTX; \ + gedf2_libfunc = NULL_RTX; \ ltdf2_libfunc = init_one_libfunc ("dpcmp"); \ ledf2_libfunc = init_one_libfunc ("dpcmp"); \ \ |