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gcse.c (insert_insn_end_bb): Do not search for assignments to non-argumment registers that are mentioned in...

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* gcse.c (insert_insn_end_bb): Do not search for assignments to
        non-argumment registers that are mentioned in CALL_INSN_FUNCTION_USAGE.

From-SVN: r41976
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Jeffrey A Law 2001-05-11 22:07:58 +00:00 • committed by Jeff Law
parent 37ff4d286d
commit 8598a9a232
2 changed files with 8 additions and 0 deletions
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gcc/ChangeLog
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@ -1,5 +1,8 @@
Fri May 11 15:50:13 2001 Jeffrey A Law (law@cygnus.com)
* gcse.c (insert_insn_end_bb): Do not search for assignments to
non-argumment registers that are mentioned in CALL_INSN_FUNCTION_USAGE.
* toplev.c (compile_file): Move comment for opening output
file to just before the code that opens the output file.

5
gcc/gcse.c
View file

@ -4787,6 +4787,11 @@ insert_insn_end_bb (expr, bb, pre)
if (REGNO (XEXP (XEXP (p, 0), 0)) >= FIRST_PSEUDO_REGISTER)
abort ();
/* We only care about registers which can hold function
arguments. */
if (! FUNCTION_ARG_REGNO_P (REGNO (XEXP (XEXP (p, 0), 0))))
continue;
SET_HARD_REG_BIT (parm_regs, REGNO (XEXP (XEXP (p, 0), 0)));
nparm_regs++;
}