diff options
Diffstat (limited to 'gcc-4.8/gcc/config/rs6000/constraints.md')
| -rw-r--r-- | gcc-4.8/gcc/config/rs6000/constraints.md | 58 |
1 files changed, 49 insertions, 9 deletions
diff --git a/gcc-4.8/gcc/config/rs6000/constraints.md b/gcc-4.8/gcc/config/rs6000/constraints.md index ccb61edce..4467b9e3d 100644 --- a/gcc-4.8/gcc/config/rs6000/constraints.md +++ b/gcc-4.8/gcc/config/rs6000/constraints.md @@ -52,21 +52,61 @@ "@internal") ;; Use w as a prefix to add VSX modes -;; vector double (V2DF) +;; any VSX register +(define_register_constraint "wa" "rs6000_constraints[RS6000_CONSTRAINT_wa]" + "Any VSX register if the -mvsx option was used or NO_REGS.") + (define_register_constraint "wd" "rs6000_constraints[RS6000_CONSTRAINT_wd]" - "@internal") + "VSX vector register to hold vector double data or NO_REGS.") -;; vector float (V4SF) (define_register_constraint "wf" "rs6000_constraints[RS6000_CONSTRAINT_wf]" - "@internal") + "VSX vector register to hold vector float data or NO_REGS.") + +(define_register_constraint "wg" "rs6000_constraints[RS6000_CONSTRAINT_wg]" + "If -mmfpgpr was used, a floating point register or NO_REGS.") + +(define_register_constraint "wl" "rs6000_constraints[RS6000_CONSTRAINT_wl]" + "Floating point register if the LFIWAX instruction is enabled or NO_REGS.") + +(define_register_constraint "wm" "rs6000_constraints[RS6000_CONSTRAINT_wm]" + "VSX register if direct move instructions are enabled, or NO_REGS.") + +;; NO_REGs register constraint, used to merge mov{sd,sf}, since movsd can use +;; direct move directly, and movsf can't to move between the register sets. +;; There is a mode_attr that resolves to wm for SDmode and wn for SFmode +(define_register_constraint "wn" "NO_REGS" "No register (NO_REGS).") + +(define_register_constraint "wr" "rs6000_constraints[RS6000_CONSTRAINT_wr]" + "General purpose register if 64-bit instructions are enabled or NO_REGS.") -;; scalar double (DF) (define_register_constraint "ws" "rs6000_constraints[RS6000_CONSTRAINT_ws]" - "@internal") + "VSX vector register to hold scalar double values or NO_REGS.") -;; any VSX register -(define_register_constraint "wa" "rs6000_constraints[RS6000_CONSTRAINT_wa]" - "@internal") +(define_register_constraint "wt" "rs6000_constraints[RS6000_CONSTRAINT_wt]" + "VSX vector register to hold 128 bit integer or NO_REGS.") + +(define_register_constraint "wu" "rs6000_constraints[RS6000_CONSTRAINT_wu]" + "Altivec register to use for float/32-bit int loads/stores or NO_REGS.") + +(define_register_constraint "wv" "rs6000_constraints[RS6000_CONSTRAINT_wv]" + "Altivec register to use for double loads/stores or NO_REGS.") + +(define_register_constraint "ww" "rs6000_constraints[RS6000_CONSTRAINT_ww]" + "FP or VSX register to perform float operations under -mvsx or NO_REGS.") + +(define_register_constraint "wx" "rs6000_constraints[RS6000_CONSTRAINT_wx]" + "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.") + +(define_register_constraint "wz" "rs6000_constraints[RS6000_CONSTRAINT_wz]" + "Floating point register if the LFIWZX instruction is enabled or NO_REGS.") + +;; Lq/stq validates the address for load/store quad +(define_memory_constraint "wQ" + "Memory operand suitable for the load/store quad instructions" + (match_operand 0 "quad_memory_operand")) ;; Altivec style load/store that ignores the bottom bits of the address (define_memory_constraint "wZ" |