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| author | David S. Miller <davem@davemloft.net> | 2011-09-25 02:29:23 +0000 |
|---|---|---|
| committer | David S. Miller <davem@gcc.gnu.org> | 2011-09-24 19:29:23 -0700 |
| commit | 10b859c0d8b237a76470229dbb99e6c8ad86eb65 (patch) | |
| tree | dd9eb1da76d09fd0f8a738298d21e8737262f1fd /gcc/doc | |
| parent | 6eaade31bbb647403677bc9c47ce8ee1dd67b514 (diff) | |
| download | gcc-10b859c0d8b237a76470229dbb99e6c8ad86eb65.zip gcc-10b859c0d8b237a76470229dbb99e6c8ad86eb65.tar.gz gcc-10b859c0d8b237a76470229dbb99e6c8ad86eb65.tar.bz2 | |
Teach sparc backend about %gsr register and add intrinsics to access it.
* config/sparc/sparc.h (FIRST_PSEUDO_REGISTER): Bump to 103.
(SPARC_GSR_REG): Define.
(FIXED_REGISTERS): Mark GSR as fixed.
(CALL_USED_REGISTERS): Mark GSR as call used.
(HARD_REGNO_NREGS): GSR is always 1 register.
(REG_CLASS_CONTENTS): Add GSR to ALL_REGS.
(REG_ALLOC_ORDER, REG_LEAF_ALLOC_ORDER): Add GSR to the end.
(REGISTER_NAMES): Add "%gsr".
* config/sparc/sparc.md (UNSPEC_ALIGNADDR, UNSPEC_ALIGNADDRL):
Delete.
(UNSPEC_WRGSR): New unspec.
(GSR_REG): New constant.
(type): Add new insn type 'gsr'.
(fpack16_vis, fpackfix_vis, fpack32_vis,
faligndata<V64I:MODE>_vis)): Add use of GSR_REG.
(wrgsr_vis, *wrgsr_sp64, wrgsr_v8plus, rdgsr_vis, *rdgsr_sp64,
rdgsr_v8plus): New expanders and insns.
(alignaddr<P:mode>_vis, alignaddrl<P:mode>_vis): Reimplement
using patterns which show that this is a plus in addition to a
modification of GSR_REG, instead of an unspec.
* config/sparc/ultra1_2.md: Handle 'gsr'.
* config/sparc/ultra3.md: Likewise.
* config/sparc/niagara.md: Likewise.
* config/sparc/niagara2.md: Likewise.
* config/sparc/sparc.c (leaf_reg_remap, sparc_leaf_regs): Fill out
end of table.
(sparc_option_override): Make -mvis imply -mv8plus.
(hard_32bit_mode_classes, hard_64bit_mode_classes): Add entries
for %gsr.
(sparc_vis_init_builtins): Build __builtin_vis_write_gsr and
__builtin_vis_read_gsr.
(sparc_expand_buildin): Handle builtins that take one argument and
return void.
(sparc_fold_builtin): Never fold writes to %gsr.
* config/sparc/visintrin.h (__vis_write_gsr, __vis_read_gsr): New.
* doc/extend.texi: Document new VIS intrinsics.
From-SVN: r179159
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/extend.texi | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index 1f54ef1..d5106aa 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -12935,6 +12935,9 @@ typedef short v2hi __attribute__ ((vector_size (4))); typedef unsigned char v8qi __attribute__ ((vector_size (8))); typedef unsigned char v4qi __attribute__ ((vector_size (4))); +void __builtin_vis_write_gsr (int64_t); +int64_t __builtin_vis_read_gsr (void); + void * __builtin_vis_alignaddr (void *, long); void * __builtin_vis_alignaddrl (void *, long); int64_t __builtin_vis_faligndatadi (int64_t, int64_t); |