https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77686
--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to ktkachov from comment #7)
> As snippet of the assembly output without scheduling (-fno-schedule-insns2):
> .LEHE0:
> add r3, sp, #32
> str r5, [sp, #32] <-------- I1
> add ip, sp, #8
> str r5, [sp, #36] <-------- I2
> add r4, sp, #16
> ldm r3, {r0, r1} <---------I3
> add lr, sp, #4
> str r5, [sp, #16]
> mov r2, #3
> str lr, [sp, #20]
> movw r5, #:lower16:<sym>
> stm ip, {r0, r1}
> movt r5, #:upper16:<sym>
> ldm r4, {r0, r1}
> movw lr, #:lower16:<sym>
> str r5, [sp, #40]
> <snip>
>
> The same region with scheduling:
> .LEHE0:
> add r3, sp, #32
> add ip, sp, #8
> add r4, sp, #16
> ldm r3, {r0, r1} <---------- I3
> add lr, sp, #4
> str r5, [sp, #16]
> mov r2, #3
> str lr, [sp, #20]
> movw lr, #:lower16:<sym>
> stm ip, {r0, r1}
> movt lr, #:upper16:<sym>
> ldm r4, {r0, r1}
> str r5, [sp, #32] <---------- I1
> str r5, [sp, #36] <---------- I2
>
> The stores I1 and I2 were moved past the load I3 that loads from SP + 32
> If I manually move those two stores back before I3 the program doesn't abort
which function is the above in? Also can you please attach preprocessed
source?
