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| author | Andreas Krebbel <krebbel1@de.ibm.com> | 2007-07-06 10:47:31 +0000 |
|---|---|---|
| committer | Andreas Krebbel <krebbel@gcc.gnu.org> | 2007-07-06 10:47:31 +0000 |
| commit | c7ff6e7a7a943f9eed6a66dd41c8e35e9df2bf6c (patch) | |
| tree | 5d263d30ab0db65a0e38c1d8aa4ab05795f921c6 /gcc/doc/tm.texi | |
| parent | 713df810031e8183d0ec88a490a8677ab0932e2c (diff) | |
| download | gcc-c7ff6e7a7a943f9eed6a66dd41c8e35e9df2bf6c.zip gcc-c7ff6e7a7a943f9eed6a66dd41c8e35e9df2bf6c.tar.gz gcc-c7ff6e7a7a943f9eed6a66dd41c8e35e9df2bf6c.tar.bz2 | |
libgcc2.h (word_type): Type definition removed.
2007-07-06 Andreas Krebbel <krebbel1@de.ibm.com>
* libgcc2.h (word_type): Type definition removed.
(cmp_return_type, shift_count_type): Type definitions added.
(__lshrdi3, __ashldi3, __ashrdi3): word_type of second parameter
replaced with shift_count_type.
(__cmpdi2, __ucmpdi2): word_type of return type replaced with
cmp_return_type.
* libgcc2.c (__udivmoddi4, __moddi3): Type of local variable c
changed from word_type to Wtype.
(__lshrdi3, __ashldi3, __ashrdi3): word_type of second parameter
replaced with shift_count_type.
(__cmpdi2, __ucmpdi2): word_type of return type replaced with
cmp_return_type.
* c-common.c (handle_mode_attribute): Handling for libgcc_cmp_return and
libgcc_shift_count attribute added.
* target-def.h (TARGET_LIBGCC_CMP_RETURN_MODE,
TARGET_LIBGCC_SHIFT_COUNT_MODE): New target hooks defined.
(TARGET_INITIALIZER): New target hooks added.
* targhooks.c (default_libgcc_cmp_return_mode,
default_libgcc_shift_count_mode): Default implementations for the new
target hooks added.
* targhooks.h (default_libgcc_cmp_return_mode,
default_libgcc_shift_count_mode): Function prototypes added.
* target.h (struct gcc_target): Fields for the new target hooks added.
* optabs.c (expand_binop): Use shift_count_mode when expanding shift
as library call.
(prepare_cmp_insn): Use cmp_return_mode when expanding comparison as
library call.
* doc/tm.texi (TARGET_LIBGCC_CMP_RETURN_MODE,
TARGET_LIBGCC_SHIFT_COUNT_MODE): Documentation added.
* config/s390/s390.c (s390_libgcc_cmp_return_mode,
s390_libgcc_shift_count_mode): Functions added.
(TARGET_LIBGCC_CMP_RETURN_MODE, TARGET_LIBGCC_SHIFT_COUNT_MODE): Target
hooks defined.
From-SVN: r126410
Diffstat (limited to 'gcc/doc/tm.texi')
| -rw-r--r-- | gcc/doc/tm.texi | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index ceeec11..3a66303 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -1334,6 +1334,20 @@ You would most commonly define this macro if the @code{allocate_stack} pattern needs to support both a 32- and a 64-bit mode. @end defmac +@deftypefn {Target Hook} {enum machine_mode} TARGET_LIBGCC_CMP_RETURN_MODE () +This target hook should return the mode to be used for the return value +of compare instructions expanded to libgcc calls. If not defined +@code{word_mode} is returned which is the right choice for a majority of +targets. +@end deftypefn + +@deftypefn {Target Hook} {enum machine_mode} TARGET_LIBGCC_SHIFT_COUNT_MODE () +This target hook should return the mode to be used for the shift count operand +of shift instructions expanded to libgcc calls. If not defined +@code{word_mode} is returned which is the right choice for a majority of +targets. +@end deftypefn + @defmac TARGET_FLOAT_FORMAT A code distinguishing the floating point format of the target machine. There are four defined values: |