From d1460eef26e329523204fd8dfadba5f2189a704b Mon Sep 17 00:00:00 2001 From: Jim Wilson Date: Wed, 8 Sep 1993 12:15:32 -0700 Subject: (fix_truncdfsi2, fixtruncsfsi2): Mark SImode scratch register as early clobbered when dest is in memory. From-SVN: r5290 --- gcc/config/mips/mips.md | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'gcc') diff --git a/gcc/config/mips/mips.md b/gcc/config/mips/mips.md index 3a0b684..2fc85e5 100644 --- a/gcc/config/mips/mips.md +++ b/gcc/config/mips/mips.md @@ -1475,10 +1475,14 @@ move\\t%0,%z4\\n\\ ;; ;; .................... +;; The SImode scratch register can not be shared with address regs used for +;; operand zero, because then the address in the move instruction will be +;; clobbered. We mark the scratch register as early clobbered to prevent this. + (define_insn "fix_truncdfsi2" [(set (match_operand:SI 0 "general_operand" "=d,*f,R,o") (fix:SI (match_operand:DF 1 "register_operand" "f,*f,f,f"))) - (clobber (match_scratch:SI 2 "=d,*d,d,d")) + (clobber (match_scratch:SI 2 "=d,*d,&d,&d")) (clobber (match_scratch:DF 3 "=f,*X,f,f"))] "TARGET_HARD_FLOAT" "* @@ -1503,7 +1507,7 @@ move\\t%0,%z4\\n\\ (define_insn "fix_truncsfsi2" [(set (match_operand:SI 0 "general_operand" "=d,*f,R,o") (fix:SI (match_operand:SF 1 "register_operand" "f,*f,f,f"))) - (clobber (match_scratch:SI 2 "=d,*d,d,d")) + (clobber (match_scratch:SI 2 "=d,*d,&d,&d")) (clobber (match_scratch:SF 3 "=f,*X,f,f"))] "TARGET_HARD_FLOAT" "* -- cgit v1.1