diff options
Diffstat (limited to 'gcc-4.9/gcc/config/rs6000/constraints.md')
| -rw-r--r-- | gcc-4.9/gcc/config/rs6000/constraints.md | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/gcc-4.9/gcc/config/rs6000/constraints.md b/gcc-4.9/gcc/config/rs6000/constraints.md index 9d6a3bbe7..78a3ff0d2 100644 --- a/gcc-4.9/gcc/config/rs6000/constraints.md +++ b/gcc-4.9/gcc/config/rs6000/constraints.md @@ -68,6 +68,20 @@ (define_register_constraint "wg" "rs6000_constraints[RS6000_CONSTRAINT_wg]" "If -mmfpgpr was used, a floating point register or NO_REGS.") +(define_register_constraint "wh" "rs6000_constraints[RS6000_CONSTRAINT_wh]" + "Floating point register if direct moves are available, or NO_REGS.") + +;; At present, DImode is not allowed in the Altivec registers. If in the +;; future it is allowed, wi/wj can be set to VSX_REGS instead of FLOAT_REGS. +(define_register_constraint "wi" "rs6000_constraints[RS6000_CONSTRAINT_wi]" + "FP or VSX register to hold 64-bit integers for VSX insns or NO_REGS.") + +(define_register_constraint "wj" "rs6000_constraints[RS6000_CONSTRAINT_wj]" + "FP or VSX register to hold 64-bit integers for direct moves or NO_REGS.") + +(define_register_constraint "wk" "rs6000_constraints[RS6000_CONSTRAINT_wk]" + "FP or VSX register to hold 64-bit doubles for direct moves or NO_REGS.") + (define_register_constraint "wl" "rs6000_constraints[RS6000_CONSTRAINT_wl]" "Floating point register if the LFIWAX instruction is enabled or NO_REGS.") @@ -101,7 +115,7 @@ "Floating point register if the STFIWX instruction is enabled or NO_REGS.") (define_register_constraint "wy" "rs6000_constraints[RS6000_CONSTRAINT_wy]" - "VSX vector register to hold scalar float values or NO_REGS.") + "FP or VSX register to perform ISA 2.07 float ops or NO_REGS.") (define_register_constraint "wz" "rs6000_constraints[RS6000_CONSTRAINT_wz]" "Floating point register if the LFIWZX instruction is enabled or NO_REGS.") |