[Bug target/111500] [arm-none-eabi-gcc] / suboptimal optimization / subs followed by cmp (et alii)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111500 Luke changed: What|Removed |Added Status|WAITING |RESOLVED Resolution|--- |DUPLICATE --- Comment #8 from Luke --- *** This bug has been marked as a duplicate of bug 104773 ***
[Bug target/111500] [arm-none-eabi-gcc] / suboptimal optimization / subs followed by cmp (et alii)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111500 --- Comment #7 from Luke --- (In reply to Andrew Pinski from comment #6) > (In reply to Andrew Pinski from comment #5) > > This is most likely a dup of bug 104773. > > Or of bug 3507. i concur... but i do not know which one to choose... they both look the same to me... somehow...
[Bug target/111500] [arm-none-eabi-gcc] / suboptimal optimization / subs followed by cmp (et alii)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111500 Bug 111500 depends on bug 111581, which changed state. Bug 111581 Summary: [arm-none-eabi-gcc] / suboptimal optimization / uxth/sxth https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111581 What|Removed |Added Status|WAITING |RESOLVED Resolution|--- |DUPLICATE
[Bug target/111500] [arm-none-eabi-gcc] / suboptimal optimization / subs followed by cmp (et alii)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111500 --- Comment #6 from Andrew Pinski --- (In reply to Andrew Pinski from comment #5) > This is most likely a dup of bug 104773. Or of bug 3507.
[Bug target/111500] [arm-none-eabi-gcc] / suboptimal optimization / subs followed by cmp (et alii)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111500
--- Comment #5 from Andrew Pinski ---
(In reply to Luke from comment #4)
> the a.i file for example #1a is:
> # 1 "a.c"
> # 1 "/tmp//"
> # 1 ""
> # 1 ""
> # 1 "a.c"
> void artiSUBS() {
> for (int i=100; i>0; i--)
> *(volatile int*)0xE000E014 = i;
> }
>
> the command-line was:
> > arm-none-eabi-gcc -save-temps -S a.c -O3 -g -mcpu=cortex-m0plus -mthumb
> > -Wall --specs=nosys.specs -nostdlib -fdata-sections -ffunction-sections
> > -ffreestanding -Winline
>
> and the resulting a.s file contains that subs/cmp sequence...
This is most likely a dup of bug 104773.
[Bug target/111500] [arm-none-eabi-gcc] / suboptimal optimization / subs followed by cmp (et alii)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111500 Bug 111500 depends on bug 111582, which changed state. Bug 111582 Summary: [arm-none-eabi-gcc] / suboptimal optimization / bitfield / superfluous stack write https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111582 What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED
[Bug target/111500] [arm-none-eabi-gcc] / suboptimal optimization / subs followed by cmp (et alii)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111500 Bug 111500 depends on bug 111580, which changed state. Bug 111580 Summary: [arm-none-eabi-gcc] / suboptimal optimization / b.n to bx lr https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111580 What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|--- |DUPLICATE
