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| author | Michael Hayes <m.hayes@elec.canterbury.ac.nz> | 2000-02-06 10:36:26 +0000 |
|---|---|---|
| committer | Michael Hayes <m.hayes@gcc.gnu.org> | 2000-02-06 10:36:26 +0000 |
| commit | b027470f4234f042f2a736ee5e830f3b20acadca (patch) | |
| tree | b3cc866a0134ea06d1c0f7472df57441aa14721f /gcc | |
| parent | d9f0b9607d1d0d0887438e439d6838f56cf2790e (diff) | |
| download | gcc-b027470f4234f042f2a736ee5e830f3b20acadca.zip gcc-b027470f4234f042f2a736ee5e830f3b20acadca.tar.gz gcc-b027470f4234f042f2a736ee5e830f3b20acadca.tar.bz2 | |
c4x.md (*ldi_on_overflow): New pattern.
2000-02-06 Michael Hayes <m.hayes@elec.canterbury.ac.nz>
* config/c4x/c4x.md (*ldi_on_overflow): New pattern.
(fixuns_truncqfqi2): Use it.
From-SVN: r31823
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/c4x/c4x.md | 47 |
2 files changed, 31 insertions, 21 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 4e79f5f..85ddc65 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2000-02-06 Michael Hayes <m.hayes@elec.canterbury.ac.nz> + + * config/c4x/c4x.md (*ldi_on_overflow): New pattern. + (fixuns_truncqfqi2): Use it. + 2000-02-06 Richard Henderson <rth@cygnus.com> * i386.c (ix86_agi_dependant): Handle pro_epilogue_adjust_stack diff --git a/gcc/config/c4x/c4x.md b/gcc/config/c4x/c4x.md index 38e2052..27173c3 100644 --- a/gcc/config/c4x/c4x.md +++ b/gcc/config/c4x/c4x.md @@ -453,6 +453,7 @@ ; 10 RSQRF ; 11 loadqf_int ; 12 storeqf_int +; 13 Conditional load on overflow ; 22 rptb_init ; @@ -3752,32 +3753,27 @@ DONE;") (define_expand "fixuns_truncqfqi2" - [(set (match_dup 2) (match_dup 5)) - (set (reg:CC 21) - (compare:CC (match_operand:QF 1 "src_operand" "fHm") - (match_dup 2))) - (set (match_dup 2) - (if_then_else:QF (lt (reg:CC 21) (const_int 0)) - (match_dup 4) - (match_dup 2))) - (parallel [(set (match_dup 2) - (plus:QF (match_dup 2) (match_dup 2))) - (clobber (reg:CC_NOOV 21))]) - (parallel [(set (match_dup 2) - (minus:QF (match_dup 1) (match_dup 2))) + [(parallel [(set (match_dup 2) + (fix:QI (match_operand:QF 1 "src_operand" "fHm"))) + (clobber (reg:CC 21))]) + (parallel [(set (match_dup 3) + (minus:QF (match_dup 1) (match_dup 5))) (clobber (reg:CC_NOOV 21))]) - (parallel [(set (match_operand:QI 0 "reg_operand" "=r") - (fix:QI (match_dup 2))) - (clobber (reg:CC 21))])] + (parallel [(set (reg:CC 21) + (compare:CC (fix:QI (match_dup 3)) + (const_int 0))) + (set (match_dup 4) + (fix:QI (match_dup 3)))]) + (parallel [(set (match_dup 4) (unspec:QI [(match_dup 2)] 13)) + (use (reg:CC 21))]) + (set (match_operand:QI 0 "reg_operand" "=r") (match_dup 4))] "" - "operands[2] = gen_reg_rtx (QFmode); + "operands[2] = gen_reg_rtx (QImode); operands[3] = gen_reg_rtx (QFmode); - operands[4] = gen_reg_rtx (QFmode); + operands[4] = gen_reg_rtx (QImode); operands[5] = gen_reg_rtx (QFmode); - emit_move_insn (operands[4], - immed_real_const_1 (REAL_VALUE_ATOF (\"0.0\", QFmode), QFmode)); emit_move_insn (operands[5], - immed_real_const_1 (REAL_VALUE_ATOF (\"2147483648.0\", QFmode), QFmode));") + immed_real_const_1 (REAL_VALUE_ATOF (\"4294967296.0\", QFmode), QFmode));") (define_expand "fixuns_truncqfhi2" [(parallel [(set (match_operand:HI 0 "reg_operand" "") @@ -4141,6 +4137,15 @@ ldi%I1\\t%3,%0" [(set_attr "type" "binary")]) +(define_insn "*ldi_on_overflow" + [(set (match_operand:QI 0 "reg_operand" "=r") + (unspec:QI [(match_operand:QI 1 "src_operand" "rIm")] 13)) + (use (reg:CC 21))] + "" + "@ + ldiv\\t%1,%0" + [(set_attr "type" "binary")]) + ; Move operand 2 to operand 0 if condition (operand 1) is true ; else move operand 3 to operand 0. ; The temporary register is required below because some of the operands |