From 10b859c0d8b237a76470229dbb99e6c8ad86eb65 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 25 Sep 2011 02:29:23 +0000 Subject: 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_vis)): Add use of GSR_REG. (wrgsr_vis, *wrgsr_sp64, wrgsr_v8plus, rdgsr_vis, *rdgsr_sp64, rdgsr_v8plus): New expanders and insns. (alignaddr_vis, alignaddrl_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 --- gcc/doc/extend.texi | 3 +++ 1 file changed, 3 insertions(+) (limited to 'gcc/doc') 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); -- cgit v1.1