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Re: [PATCH, i386] Disable HImode fild insn for TARGET_PARTIAL_REG_STALL

Eric Botcazou wrote:

For -march=i686, we are expanding function prologue (.c.00.expand) to:

...
(insn 7 8 9 0 (set (reg/v:SI 59 [ x ])
       (sign_extend:SI (subreg:HI (reg:SI 60) 0))) -1 (nil)
   (nil))

(note 9 7 10 0 NOTE_INSN_FUNCTION_BEG)
...

Note the sign_extend, that is not present for -march=pentium4, where reg
59 is in HImode.



config/i386/i386.c:549
const int x86_himode_math = ~(m_PPRO);


Yes, -march=pentium4 is OK, the problem is HImode 'push ax' in PPro case.

Uros.

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