On Sep 02 2021, Segher Boessenkool wrote:
> On Tue, Aug 31, 2021 at 07:17:49PM +0800, liuhongt via Gcc-patches wrote:
>> * emit-rtl.c (validate_subreg): Get rid of all float-int
>> special cases.
>
> This caused various regressions on powerpc. Please revert this until
> this can be done safely (the comment this patch deletes says why it can
> not be done yet).
This also breaks ada on riscv64.
s-fatgen.adb: In function 'System.Fat_Flt.Attr_Float.Scaling':
s-fatgen.adb:830:8: error: unable to find a register to spill
s-fatgen.adb:830:8: error: this is the insn:
(insn 215 321 216 26 (set (reg:SF 88 [ xx.26_39 ])
(mult:SF (reg:SF 190)
(subreg:SF (reg:DI 221 [164]) 0))) "s-fatgen.adb":821:25 17 {mulsf3}
(expr_list:REG_DEAD (reg:DI 221 [164])
(expr_list:REG_DEAD (reg:SF 190)
(nil))))
during RTL pass: reload
Andreas.
--
Andreas Schwab, [email protected]
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