diff options
Diffstat (limited to 'gcc/config/alpha/alpha.md')
| -rw-r--r-- | gcc/config/alpha/alpha.md | 58 |
1 files changed, 46 insertions, 12 deletions
diff --git a/gcc/config/alpha/alpha.md b/gcc/config/alpha/alpha.md index c878366b846..1a26ca80c2d 100644 --- a/gcc/config/alpha/alpha.md +++ b/gcc/config/alpha/alpha.md @@ -1,6 +1,6 @@ ;; Machine description for DEC Alpha for GNU C compiler ;; Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, -;; 2000, 2001, 2002 Free Software Foundation, Inc. +;; 2000, 2001, 2002, 2003 Free Software Foundation, Inc. ;; Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu) ;; ;; This file is part of GNU CC. @@ -142,6 +142,18 @@ fadd,fmul,fcpys,fdiv,fsqrt,misc,mvi,ftoi,itof,multi,none" (define_attr "length" "" (const_int 4)) + +;; The USEGP attribute marks instructions that have relocations that use +;; the GP. + +(define_attr "usegp" "no,yes" + (cond [(eq_attr "type" "ldsym,jsr") + (const_string "yes") + (eq_attr "type" "ild,fld,ist,fst") + (symbol_ref "alpha_find_lo_sum_using_gp(insn)") + ] + (const_string "no"))) + ;; Include scheduling descriptions. @@ -402,7 +414,8 @@ fadd,fmul,fcpys,fdiv,fsqrt,misc,mvi,ftoi,itof,multi,none" (plus:DI (match_operand:DI 1 "register_operand" "r") (high:DI (match_operand:DI 2 "local_symbolic_operand" ""))))] "TARGET_EXPLICIT_RELOCS" - "ldah %0,%2(%1)\t\t!gprelhigh") + "ldah %0,%2(%1)\t\t!gprelhigh" + [(set_attr "usegp" "yes")]) (define_split [(set (match_operand:DI 0 "register_operand" "") @@ -737,17 +750,31 @@ fadd,fmul,fcpys,fdiv,fsqrt,misc,mvi,ftoi,itof,multi,none" "mulqv %r1,%2,%0" [(set_attr "type" "imul")]) -(define_insn "umuldi3_highpart" +(define_expand "umuldi3_highpart" + [(set (match_operand:DI 0 "register_operand" "") + (truncate:DI + (lshiftrt:TI + (mult:TI (zero_extend:TI + (match_operand:DI 1 "register_operand" "")) + (match_operand:DI 2 "reg_or_8bit_operand" "")) + (const_int 64))))] + "" +{ + if (REG_P (operands[2])) + operands[2] = gen_rtx_ZERO_EXTEND (TImode, operands[2]); +}) + +(define_insn "*umuldi3_highpart_reg" [(set (match_operand:DI 0 "register_operand" "=r") (truncate:DI (lshiftrt:TI (mult:TI (zero_extend:TI - (match_operand:DI 1 "reg_or_0_operand" "%rJ")) + (match_operand:DI 1 "register_operand" "r")) (zero_extend:TI - (match_operand:DI 2 "reg_or_8bit_operand" "rI"))) + (match_operand:DI 2 "register_operand" "r"))) (const_int 64))))] "" - "umulh %r1,%2,%0" + "umulh %1,%2,%0" [(set_attr "type" "imul") (set_attr "opsize" "udi")]) @@ -5305,7 +5332,8 @@ fadd,fmul,fcpys,fdiv,fsqrt,misc,mvi,ftoi,itof,multi,none" return "lda %0,%2(%1)\t\t!gprel"; else return "lda %0,%2(%1)\t\t!gprellow"; -}) +} + [(set_attr "usegp" "yes")]) (define_split [(set (match_operand:DI 0 "register_operand" "") @@ -5331,10 +5359,12 @@ fadd,fmul,fcpys,fdiv,fsqrt,misc,mvi,ftoi,itof,multi,none" [(match_dup 0)] "operands[0] = split_small_symbolic_operand (operands[0]);") +;; Accepts any symbolic, not just global, since function calls that +;; don't go via bsr still use !literal in hopes of linker relaxation. (define_insn "movdi_er_high_g" [(set (match_operand:DI 0 "register_operand" "=r") (unspec:DI [(match_operand:DI 1 "register_operand" "r") - (match_operand:DI 2 "global_symbolic_operand" "") + (match_operand:DI 2 "symbolic_operand" "") (match_operand 3 "const_int_operand" "")] UNSPEC_LITERAL))] "TARGET_EXPLICIT_RELOCS" @@ -5425,7 +5455,8 @@ fadd,fmul,fcpys,fdiv,fsqrt,misc,mvi,ftoi,itof,multi,none" UNSPEC_DTPREL))] "HAVE_AS_TLS" "ldq %0,%2(%1)\t\t!gotdtprel" - [(set_attr "type" "ild")]) + [(set_attr "type" "ild") + (set_attr "usegp" "yes")]) (define_split [(set (match_operand:DI 0 "register_operand" "") @@ -5446,7 +5477,8 @@ fadd,fmul,fcpys,fdiv,fsqrt,misc,mvi,ftoi,itof,multi,none" UNSPEC_TPREL))] "HAVE_AS_TLS" "ldq %0,%2(%1)\t\t!gottprel" - [(set_attr "type" "ild")]) + [(set_attr "type" "ild") + (set_attr "usegp" "yes")]) (define_split [(set (match_operand:DI 0 "register_operand" "") @@ -5477,7 +5509,8 @@ fadd,fmul,fcpys,fdiv,fsqrt,misc,mvi,ftoi,itof,multi,none" fmov %R1,%0 ldt %0,%1 stt %R1,%0" - [(set_attr "type" "ilog,iadd,iadd,iadd,ldsym,ild,ist,fcpys,fld,fst")]) + [(set_attr "type" "ilog,iadd,iadd,iadd,ldsym,ild,ist,fcpys,fld,fst") + (set_attr "usegp" "*,*,*,yes,*,*,*,*,*,*")]) ;; The 'U' constraint matches symbolic operands on Unicos/Mk. Those should ;; have been split up by the rules above but we shouldn't reject the @@ -5524,7 +5557,8 @@ fadd,fmul,fcpys,fdiv,fsqrt,misc,mvi,ftoi,itof,multi,none" stt %R1,%0 ftoit %1,%0 itoft %1,%0" - [(set_attr "type" "ilog,iadd,iadd,iadd,ldsym,ild,ist,fcpys,fld,fst,ftoi,itof")]) + [(set_attr "type" "ilog,iadd,iadd,iadd,ldsym,ild,ist,fcpys,fld,fst,ftoi,itof") + (set_attr "usegp" "*,*,*,yes,*,*,*,*,*,*,*,*")]) (define_insn "*movdi_fix" [(set (match_operand:DI 0 "nonimmediate_operand" "=r,r,r,r,r,m,*f,*f,Q,r,*f") |