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m68k.c (output_scc_di): Use cmpw #0 instead of tstl when testing address registers on the 68000.

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* m68k.c (output_scc_di): Use cmpw #0 instead of tstl when
        testing address registers on the 68000.

From-SVN: r20963
This commit is contained in:
Kamil Iskra 1998-07-06 23:23:56 +02:00 • committed by Jeff Law
parent 702d7434a5
commit 392582fae8
2 changed files with 20 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
Mon Jul 6 22:21:56 1998 Kamil Iskra <iskra@student.uci.agh.edu.pl>
* m68k.c (output_scc_di): Use cmpw #0 instead of tstl when
testing address registers on the 68000.
Mon Jul 6 22:17:19 1998 Alasdair Baird <alasdair@wildcat.demon.co.uk>
* jump.c (jump_optimize) Check for CONST_INT before using INTVAL.

16
gcc/config/m68k/m68k.c
View file

@ -1059,11 +1059,25 @@ output_scc_di(op, operand1, operand2, dest)
output_asm_insn ("cmp%.l %2,%0\n\tjne %l4\n\tcmp%.l %3,%1", loperands);
#endif
#endif
else
else if (TARGET_68020 || TARGET_5200)
#ifdef MOTOROLA
output_asm_insn ("tst%.l %0\n\tjbne %l4\n\ttst%.l %1", loperands);
#else
output_asm_insn ("tst%.l %0\n\tjne %l4\n\ttst%.l %1", loperands);
#endif
else
#ifdef MOTOROLA
#ifdef SGS_CMP_ORDER
output_asm_insn ("cmp%.w %0,%#0\n\tjbne %l4\n\tcmp%.w %1,%#0", loperands);
#else
output_asm_insn ("cmp%.w %#0,%0\n\tjbne %l4\n\tcmp%.w %#0,%1", loperands);
#endif
#else
#ifdef SGS_CMP_ORDER
output_asm_insn ("cmp%.w %0,%#0\n\tjne %l4\n\tcmp%.w %1,%#0", loperands);
#else
output_asm_insn ("cmp%.w %#0,%0\n\tjne %l4\n\tcmp%.w %#0,%1", loperands);
#endif
#endif
loperands[5] = dest;