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| author | geoffk <geoffk@138bc75d-0d04-0410-961f-82ee72b054a4> | 2006-11-01 05:14:40 +0000 |
|---|---|---|
| committer | geoffk <geoffk@138bc75d-0d04-0410-961f-82ee72b054a4> | 2006-11-01 05:14:40 +0000 |
| commit | 427911176defd91fb2ac55f17bde1da551c2c02b (patch) | |
| tree | 75385000f3e0304a84896c064ff32d8b0dc1c9bb /gcc/doc/rtl.texi | |
| parent | db85cc4fe2fd064f4ccf38b0f29e1c49993119d0 (diff) | |
| download | gcc-427911176defd91fb2ac55f17bde1da551c2c02b.tar.gz | |
2006-09-07 Eric Christopher <echristo@apple.com>
Falk Hueffner <falk@debian.org>
* doc/extend.texi (__builtin_bswap32): Document.
(__builtin_bswap64): Ditto.
* doc/libgcc.texi (bswapsi2): Document.
(bswapdi2): Ditto.
* doc/rtl.texi (bswap): Document.
* optabs.c (expand_unop): Don't widen a bswap.
(init_optabs): Init bswap. Set libfuncs explicitly
for bswapsi2 and bswapdi2.
* optabs.h (OTI_bswap): New.
(bswap_optab): Ditto.
* genopinit.c (optabs): Handle bswap_optab.
* tree.h (tree_index): Add TI_UINT32_TYPE and
TI_UINT64_TYPE.
(uint32_type_node): New.
(uint64_type_node): Ditto.
* tree.c (build_common_tree_nodes_2): Initialize
uint32_type_node and uint64_type_node.
* builtins.c (expand_builtin_bswap): New.
(expand_builtin): Call.
(fold_builtin_bswap): New.
(fold_builtin_1): Call.
* fold-const.c (tree_expr_nonnegative_p): Return true
for bswap.
* builtin-types.def (BT_UINT32): New.
(BT_UINT64): Ditto.
(BT_FN_UINT32_UINT32): Ditto.
(BT_FN_UINT64_UINT64): Ditto.
* builtins.def (BUILT_IN_BSWAP32): New.
(BUILT_IN_BSWAP64): Ditto.
* rtl.def (BSWAP): New.
* genattrtab.c (check_attr_value): New.
* libgcc2.c (__bswapSI2): New.
(__bswapDI2): Ditto.
* libgcc2.h (__bswapSI2): Declare.
(__bswapDI2): Ditto.
* mklibgcc.in (lib2funcs): Add _bswapsi2 and _bswapdi2.
* simplify-rtx.c (simplify_const_unary_operation): Return
0 for BSWAP.
* libgcc-std.ver (__bwapsi2): Add.
(__bswapdi2): Ditto.
* reload1.c (eliminate_regs_1): Add bswap.
(elimination_effects): Ditto.
* config/i386/i386.h (x86_bswap): New.
(TARGET_BSWAP): Use.
* config/i386/i386.c (x86_bswap): Set.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@118361 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/doc/rtl.texi')
| -rw-r--r-- | gcc/doc/rtl.texi | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/doc/rtl.texi b/gcc/doc/rtl.texi index 76e8f16face..d97b2b327ef 100644 --- a/gcc/doc/rtl.texi +++ b/gcc/doc/rtl.texi @@ -2084,6 +2084,11 @@ mode @var{m}. The mode of @var{x} will usually be an integer mode. Represents the number of 1-bits modulo 2 in @var{x}, represented as an integer of mode @var{m}. The mode of @var{x} will usually be an integer mode. + +@findex bswap +@item (bswap:@var{m} @var{x}) +Represents the value @var{x} with the order of bytes reversed, carried out +in mode @var{m}, which must be a fixed-point machine mode. @end table @node Comparisons |