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2013-11-19 Catherine Moore <clm@codesourcery.com>

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gas/
	* config/tc-mips.c (mips_fix_pmc_rm7000): Declare.
	(options): Add OPTION_FIX_PMC_RM7000 and OPTION_NO_FIX_PMC_RM7000.
	(md_longopts): Add mfix-pmc-rm7000 and mno-fix-pmc-rm7000.
	(INSN_DMULT): Define.
	(INSN_DMULTU): Define.
	(insns_between): Detect PMC RM7000 errata.
	(md_parse_option): Supprt OPTION_FIX_PMC_RM7000 and
	OPTION_NO_FIX_PMC_RM7000.
	* doc/as.texinfo: Document new options.
	* doc/c-mips.texi: Likewise.

	gas/testsuite/
	* gas/mips/fix-pmc-rm7000-1.d: New.
	* gas/mips/fix-pmc-rm7000-1.s: New.
	* gas/mips/fix-pmc-rm7000-2.d: New.
	* gas/mips/fix-pmc-rm7000-2.s: New.
	* gas/mips/micromips@fix-pmc-rm7000-1.d: New.
	* gas/mips/micromips@fix-pmc-rm7000-2.d: New.
	* gas/mips/mips.exp: Run new tests.
This commit is contained in:
Catherine Moore
2013-11-19 04:44:59 -08:00
parent cf3f45fad7
commit a8d14a8892
12 changed files with 230 additions and 2 deletions
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5
gas/doc/c-mips.texi
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@ -206,6 +206,11 @@ selected, allowing all instructions to be used.
Cause nops to be inserted if the read of the destination register
of an mfhi or mflo instruction occurs in the following two instructions.
@item -mfix-rm7000
@itemx -mno-fix-rm7000
Cause nops to be inserted if a dmult or dmultu instruction is
followed by a load instruction.
@item -mfix-loongson2f-jump
@itemx -mno-fix-loongson2f-jump
Eliminate instruction fetch from outside 256M region to work around the