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ppc64: widening multiply patterns 

* config/rs6000/rs6000.md (smulditi3): New.
        (umulditi3): New.

From-SVN: r195667
This commit is contained in:
Richard Henderson 2013-02-01 08:34:15 -08:00 committed by Richard Henderson
parent c050cbe9b4
commit 749af8ee12
2 changed files with 33 additions and 0 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2013-02-01 Richard Henderson <rth@redhat.com>
* config/rs6000/rs6000.md (smulditi3): New.
(umulditi3): New.
2013-02-01 David Edelsohn <dje.gcc@gmail.com>
* config/rs6000/xcoff.h (ASM_OUTPUT_ALIGNED_COMMON): Use floor_log2.

28
gcc/config/rs6000/rs6000.md
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@ -6326,6 +6326,34 @@
"mulhdu %0,%1,%2"
[(set_attr "type" "lmul")])
(define_expand "mulditi3"
[(set (match_operand:TI 0 "gpc_reg_operand")
(mult:TI (sign_extend:TI (match_operand:DI 1 "gpc_reg_operand"))
(sign_extend:TI (match_operand:DI 2 "gpc_reg_operand"))))]
"TARGET_POWERPC64"
{
rtx l = gen_reg_rtx (DImode), h = gen_reg_rtx (DImode);
emit_insn (gen_muldi3 (l, operands[1], operands[2]));
emit_insn (gen_smuldi3_highpart (h, operands[1], operands[2]));
emit_move_insn (gen_lowpart (DImode, operands[0]), l);
emit_move_insn (gen_highpart (DImode, operands[0]), h);
DONE;
})
(define_expand "umulditi3"
[(set (match_operand:TI 0 "gpc_reg_operand")
(mult:TI (zero_extend:TI (match_operand:DI 1 "gpc_reg_operand"))
(zero_extend:TI (match_operand:DI 2 "gpc_reg_operand"))))]
"TARGET_POWERPC64"
{
rtx l = gen_reg_rtx (DImode), h = gen_reg_rtx (DImode);
emit_insn (gen_muldi3 (l, operands[1], operands[2]));
emit_insn (gen_umuldi3_highpart (h, operands[1], operands[2]));
emit_move_insn (gen_lowpart (DImode, operands[0]), l);
emit_move_insn (gen_highpart (DImode, operands[0]), h);
DONE;
})
(define_insn "rotldi3"
[(set (match_operand:DI 0 "gpc_reg_operand" "=r,r")
(rotate:DI (match_operand:DI 1 "gpc_reg_operand" "r,r")