Skip to content

R
riscv-gcc-1
Commit e7f80676 by Michael Meissner
Options

Fix DImode move problems. 

From-SVN: r8022
parent 29226a19
Showing with 33 additions and 28 deletions
gcc/config/i386/i386.md
...@@ -1352,40 +1352,45 @@ ...@@ -1352,40 +1352,45 @@
"* return output_move_double (operands);") "* return output_move_double (operands);")
(define_insn "" (define_insn ""
[(set (match_operand:DI 0 "push_operand" "=<") [(set (match_operand:DI 0 "push_operand" "=<,<,<")
(match_operand:DI 1 "nonmemory_operand" "riF")) (match_operand:DI 1 "general_operand" "riF,o,o"))
(clobber (match_scratch:SI 2 "X")) (clobber (match_scratch:SI 2 "X,=&r,=&r"))
(clobber (match_scratch:SI 3 "X"))] (clobber (match_scratch:SI 3 "X,=&r,X"))]
"!TARGET_386 && TARGET_MOVE" "!TARGET_386"
"* return output_move_double (operands);") "*
{
rtx low[1], high[1], xop[4];
(define_insn "" split_di (&operands[1], 1, low, high);
[(set (match_operand:DI 0 "push_operand" "=<") xop[0] = operands[2];
(match_operand:DI 1 "general_operand" "roiF")) xop[1] = operands[3];
(clobber (match_scratch:SI 2 "X")) xop[2] = high[0];
(clobber (match_scratch:SI 3 "X"))] xop[3] = low[0];
"!TARGET_386 && !TARGET_MOVE"
"* return output_move_double (operands);")
(define_expand "movdi" if (GET_CODE (operands[1]) != MEM)
[(parallel [(set (match_operand:DI 0 "general_operand" "")
(match_operand:DI 1 "general_operand" ""))
(clobber (match_scratch:SI 2 ""))
(clobber (match_scratch:SI 3 ""))])]
""
"
{
/* Don't generate memory->memory moves, go through a register */
if (TARGET_MOVE
&& (reload_in_progress | reload_completed) == 0
&& GET_CODE (operands[0]) == MEM
&& GET_CODE (operands[1]) == MEM)
{ {
operands[1] = force_reg (DImode, operands[1]); output_asm_insn (AS1 (push%L0,%2), xop);
output_asm_insn (AS1 (push%L0,%3), xop);
} }
else if (GET_CODE (operands[3]) == REG)
{ /* 2 scratch registers available */
output_asm_insn (AS2 (mov%L0,%2,%0), xop);
output_asm_insn (AS2 (mov%L0,%3,%1), xop);
output_asm_insn (AS1 (push%L0,%0), xop);
output_asm_insn (AS1 (push%L0,%1), xop);
}
else
{ /* 1 scratch register */
output_asm_insn (AS2 (mov%L0,%2,%0), xop);
output_asm_insn (AS1 (push%L0,%0), xop);
output_asm_insn (AS2 (mov%L0,%3,%0), xop);
output_asm_insn (AS1 (push%L0,%0), xop);
}
RET;
}") }")
(define_insn "" (define_insn "movdi"
[(set (match_operand:DI 0 "general_operand" "=r,rm,o,o") [(set (match_operand:DI 0 "general_operand" "=r,rm,o,o")
(match_operand:DI 1 "general_operand" "m,riF,o,o")) (match_operand:DI 1 "general_operand" "m,riF,o,o"))
(clobber (match_scratch:SI 2 "X,X,=&r,=&r")) (clobber (match_scratch:SI 2 "X,X,=&r,=&r"))
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment