[Bug middle-end/100775] ICE: in df_exit_block_bitmap_verify, at df-scan.c:4164 with -mthumb -fzero-call-used-regs=used

2022-03-16 Thread qinzhao at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100775

--- Comment #8 from qinzhao at gcc dot gnu.org ---
fixed in gcc11 too.

[Bug middle-end/100775] ICE: in df_exit_block_bitmap_verify, at df-scan.c:4164 with -mthumb -fzero-call-used-regs=used

2022-03-16 Thread cvs-commit at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100775

--- Comment #7 from CVS Commits  ---
The releases/gcc-11 branch has been updated by Qing Zhao :

https://gcc.gnu.org/g:9b1faeb5bfef258780e313aa8302a43f98f3b442

commit r11-9663-g9b1faeb5bfef258780e313aa8302a43f98f3b442
Author: Qing Zhao 
Date:   Wed Mar 16 20:18:54 2022 +

middle-end/100775 - updating the reg use in exit block for
-fzero-call-used-regs

GCC11 backport.

In the pass_zero_call_used_regs, when updating dataflow info after adding
the register zeroing sequence in the epilogue of the function, we should
call "df_update_exit_block_uses" to update the register use information in
the exit block to include all the registers that have been zeroed.

gcc/ChangeLog:

PR middle-end/100775
* function.c (gen_call_used_regs_seq): Call
df_update_exit_block_uses when updating df.

gcc/testsuite/ChangeLog:

PR middle-end/100775
* gcc.target/arm/pr100775.c: New test.

[Bug middle-end/100775] ICE: in df_exit_block_bitmap_verify, at df-scan.c:4164 with -mthumb -fzero-call-used-regs=used

2022-02-10 Thread pinskia at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100775

Andrew Pinski  changed:

   What|Removed |Added

 Status|ASSIGNED|RESOLVED
   Target Milestone|--- |12.0
 Resolution|--- |FIXED

--- Comment #6 from Andrew Pinski  ---
.

[Bug middle-end/100775] ICE: in df_exit_block_bitmap_verify, at df-scan.c:4164 with -mthumb -fzero-call-used-regs=used

2022-02-10 Thread qinzhao at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100775

--- Comment #5 from qinzhao at gcc dot gnu.org ---
fixed in gcc12.

[Bug middle-end/100775] ICE: in df_exit_block_bitmap_verify, at df-scan.c:4164 with -mthumb -fzero-call-used-regs=used

2022-02-10 Thread cvs-commit at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100775

--- Comment #4 from CVS Commits  ---
The master branch has been updated by Qing Zhao :

https://gcc.gnu.org/g:b32305b41dcafc5fb6974c0da3ce2f62251afdbf

commit r12-7183-gb32305b41dcafc5fb6974c0da3ce2f62251afdbf
Author: Qing Zhao 
Date:   Thu Feb 10 16:40:39 2022 +

middle-end: updating the reg use in exit block for -fzero-call-used-regs
[PR100775]

In the pass_zero_call_used_regs, when updating dataflow info after adding
the register zeroing sequence in the epilogue of the function, we should
call "df_update_exit_block_uses" to update the register use information in
the exit block to include all the registers that have been zeroed.

2022-02-10  Qing Zhao  

gcc/ChangeLog:

PR middle-end/100775
* function.cc (gen_call_used_regs_seq): Call
df_update_exit_block_uses when updating df.

gcc/testsuite/ChangeLog:

PR middle-end/100775
* gcc.target/arm/pr100775.c: New test.