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re PR middle-end/15228 (useless copies of floating point operands) 

PR middle-end/15228
        * function.c (assign_parms): Always set_mem_align with the computed
        FUNCTION_ARG_BOUNDARY.  Don't clear stack_parm if !STRICT_ALIGNMENT.

From-SVN: r82867
This commit is contained in:
Richard Henderson 2004-06-09 16:52:13 -07:00 committed by Richard Henderson
parent 4b5b961390
commit e66e7856e8
2 changed files with 11 additions and 11 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2004-06-09 Richard Henderson <rth@redhat.com>
PR middle-end/15228
* function.c (assign_parms): Always set_mem_align with the computed
FUNCTION_ARG_BOUNDARY. Don't clear stack_parm if !STRICT_ALIGNMENT.
2004-06-09 Richard Henderson <rth@redhat.com>
PR opt/15108

16
gcc/function.c
View File

@ -4621,10 +4621,8 @@ assign_parms (tree fndecl)
offset_rtx));
set_mem_attributes (stack_parm, parm, 1);
if (entry_parm && MEM_ATTRS (stack_parm)->align < PARM_BOUNDARY)
set_mem_align (stack_parm, PARM_BOUNDARY);
/* Set also REG_ATTRS if parameter was passed in a register. */
set_mem_align (stack_parm,
FUNCTION_ARG_BOUNDARY (promoted_mode, passed_type));
if (entry_parm)
set_reg_attrs_for_parm (entry_parm, stack_parm);
}
@ -4692,13 +4690,9 @@ assign_parms (tree fndecl)
/* If we can't trust the parm stack slot to be aligned enough
for its ultimate type, don't use that slot after entry.
We'll make another stack slot, if we need one. */
{
unsigned int thisparm_boundary
= FUNCTION_ARG_BOUNDARY (promoted_mode, passed_type);
if (GET_MODE_ALIGNMENT (nominal_mode) > thisparm_boundary)
stack_parm = 0;
}
if (STRICT_ALIGNMENT && stack_parm
&& GET_MODE_ALIGNMENT (nominal_mode) > MEM_ALIGN (stack_parm))
stack_parm = 0;
/* If parm was passed in memory, and we need to convert it on entry,
don't store it back in that same slot. */