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(output_prolog): Use mr, lis, and li instructions. 

Use subf instruction if TARGET_POWERPC.
(output_epilog): Use cal/addi instruction.

From-SVN: r7168
This commit is contained in:
Richard Kenner 1994-04-28 18:10:10 -04:00
parent 6e151478b5
commit 1f5f71ae0a
1 changed files with 8 additions and 5 deletions
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13
gcc/config/rs6000/rs6000.c
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@ -1535,16 +1535,19 @@ output_prolog (file, size)
asm_fprintf (file, "\t{stu|stwu} 1,%d(1)\n", - total_size);
else
{
asm_fprintf (file, "\t{cau|addis} 0,0,%d\n\t{oril|ori} 0,0,%d\n",
asm_fprintf (file, "\t{cau 0,0,%d|lis 0,%d}\n\t{oril 0,0,%d|li 0,%d}\n",
(total_size >> 16) & 0xffff, total_size & 0xffff);
asm_fprintf (file, "\t{sf|subfc} 12,0,1\n");
asm_fprintf (file, "\t{st|stw} 1,0(12)\n\t{oril|ori} 1,12,0\n");
if (TARGET_POWERPC)
asm_fprintf (file, "\tsubf 12,0,1\n");
else
asm_fprintf (file, "\t{sf|subfc} 12,0,1\n");
asm_fprintf (file, "\t{st|stw} 1,0(12)\n\tmr 1,12\n");
}
}
/* Set frame pointer, if needed. */
if (frame_pointer_needed)
asm_fprintf (file, "\t{oril|ori} 31,1,0\n");
asm_fprintf (file, "\tmr 31,1\n");
/* If TARGET_MINIMAL_TOC, and the constant pool is needed, then load the
TOC_TABLE address into register 30. */
@ -1589,7 +1592,7 @@ output_epilog (file, size)
|| total_size > 32767)
asm_fprintf (file, "\t{l|lwz} 1,0(1)\n");
else if (must_push)
asm_fprintf (file, "\t{ai|addic} 1,1,%d\n", total_size);
asm_fprintf (file, "\t{cal 1,%d(1)|addi 1,1,%d}\n", total_size);
/* Get the old lr if we saved it. */
if (regs_ever_live[65])