darkkirb/old-cross-binutils
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

* config/tc-mips.c (append_insn): Don't do r3900 interlock

Browse source 
optimization for -mtune=r3900, as this will break on other CPUs.
This commit is contained in:
Thiemo Seufer 2004-01-21 23:25:38 +00:00
parent a49d618c8c
commit 048cdf861a
2 changed files with 10 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
gas/ChangeLog
View file

@ -1,3 +1,8 @@
2004-01-22 Thiemo Seufer <seufer@csv.ica.uni-stuttgart.de>
* config/tc-mips.c (append_insn): Don't do r3900 interlock
optimization for -mtune=r3900, as this will break on other CPUs.
2004-01-11 Tom Rix <tcrix@worldnet.att.net>
* config/tc-m68hc11.c (build_indexed_byte): movb and movw cannot

10
gas/config/tc-mips.c
View file

@ -1708,7 +1708,7 @@ append_insn (char *place, struct mips_cl_insn *ip, expressionS *address_expr,
though the tx39's divide insns still do require the
delay. */
if (! (hilo_interlocks
|| (mips_tune == CPU_R3900 && (pinfo & INSN_MULT)))
|| (mips_opts.arch == CPU_R3900 && (pinfo & INSN_MULT)))
&& (mips_optimize == 0
|| (pinfo & INSN_WRITE_LO)))
nops += 2;
@ -1730,7 +1730,7 @@ append_insn (char *place, struct mips_cl_insn *ip, expressionS *address_expr,
insert a NOP. Some newer processors have interlocks.
Also the note tx39's multiply above. */
if (! (hilo_interlocks
|| (mips_tune == CPU_R3900 && (pinfo & INSN_MULT)))
|| (mips_opts.arch == CPU_R3900 && (pinfo & INSN_MULT)))
&& (mips_optimize == 0
|| (pinfo & INSN_WRITE_HI)))
nops += 2;
@ -1768,11 +1768,11 @@ append_insn (char *place, struct mips_cl_insn *ip, expressionS *address_expr,
|| ((prev_prev_insn.insn_mo->pinfo & INSN_READ_LO)
&& (pinfo & INSN_WRITE_LO)
&& ! (hilo_interlocks
|| (mips_tune == CPU_R3900 && (pinfo & INSN_MULT))))
|| (mips_opts.arch == CPU_R3900 && (pinfo & INSN_MULT))))
|| ((prev_prev_insn.insn_mo->pinfo & INSN_READ_HI)
&& (pinfo & INSN_WRITE_HI)
&& ! (hilo_interlocks
|| (mips_tune == CPU_R3900 && (pinfo & INSN_MULT)))))
|| (mips_opts.arch == CPU_R3900 && (pinfo & INSN_MULT)))))
prev_prev_nop = 1;
else
prev_prev_nop = 0;
@ -2297,7 +2297,7 @@ append_insn (char *place, struct mips_cl_insn *ip, expressionS *address_expr,
| INSN_WRITE_COND_CODE))
&& ! cop_interlocks)
|| (! (hilo_interlocks
|| (mips_tune == CPU_R3900 && (pinfo & INSN_MULT)))
|| (mips_opts.arch == CPU_R3900 && (pinfo & INSN_MULT)))
&& (prev_pinfo
& (INSN_READ_LO
| INSN_READ_HI)))