[Bug target/115439] [15 Regression] ICEs after r15-638 on master-thumb_m55_hard_eabi

2024-06-11 Thread pinskia at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115439

--- Comment #7 from Andrew Pinski  ---
(In reply to Robin Dapp from comment #6)
> Are you going to post a patch?

I was going to let the arm folks take care of it since I have no way to test
it.

[Bug target/115439] [15 Regression] ICEs after r15-638 on master-thumb_m55_hard_eabi

2024-06-11 Thread rdapp at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115439

--- Comment #6 from Robin Dapp  ---
Looks reasonable.  That's what we were doing before in internal-fn.cc before
expanding (except operands[2]).

Are you going to post a patch?

[Bug target/115439] [15 Regression] ICEs after r15-638 on master-thumb_m55_hard_eabi

2024-06-11 Thread pinskia at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115439

--- Comment #5 from Andrew Pinski  ---
(In reply to Andrew Pinski from comment #4)
> I think something like this:
> ```
> [apinski@xeond2 arm]$ git diff mve.md
> diff --git a/gcc/config/arm/mve.md b/gcc/config/arm/mve.md
> index 9fe51298cdc..8af4797e935 100644
> --- a/gcc/config/arm/mve.md
> +++ b/gcc/config/arm/mve.md
> @@ -6897,6 +6897,12 @@ (define_expand "vcond_mask_"
>   (match_operand:MVE_VLD_ST 2 "s_register_operand")))]
>"TARGET_HAVE_MVE"
>  {
> +  if (!register_operand (operands[3], mode))
> +operands[3] = force_reg (operands[3]);
> +  if (!register_operand (operands[1], mode))
> +operands[1] = force_reg (operands[1]);
> +  if (!register_operand (operands[2], mode))
> +operands[1] = force_reg (operands[2]);

copy and pasto:`operands[1] = force_reg (operands[1]);` is the correct line for
above.

>switch (GET_MODE_CLASS (mode))
>  {
>case MODE_VECTOR_INT:
> 
> ```
> Signed-off-by: Andrew Pinski  

[Bug target/115439] [15 Regression] ICEs after r15-638 on master-thumb_m55_hard_eabi

2024-06-11 Thread pinskia at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115439

--- Comment #4 from Andrew Pinski  ---
I think something like this:
```
[apinski@xeond2 arm]$ git diff mve.md
diff --git a/gcc/config/arm/mve.md b/gcc/config/arm/mve.md
index 9fe51298cdc..8af4797e935 100644
--- a/gcc/config/arm/mve.md
+++ b/gcc/config/arm/mve.md
@@ -6897,6 +6897,12 @@ (define_expand "vcond_mask_"
  (match_operand:MVE_VLD_ST 2 "s_register_operand")))]
   "TARGET_HAVE_MVE"
 {
+  if (!register_operand (operands[3], mode))
+operands[3] = force_reg (operands[3]);
+  if (!register_operand (operands[1], mode))
+operands[1] = force_reg (operands[1]);
+  if (!register_operand (operands[2], mode))
+operands[1] = force_reg (operands[2]);
   switch (GET_MODE_CLASS (mode))
 {
   case MODE_VECTOR_INT:

```
Signed-off-by: Andrew Pinski  

[Bug target/115439] [15 Regression] ICEs after r15-638 on master-thumb_m55_hard_eabi

2024-06-11 Thread carlos.seo at linaro dot org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115439

--- Comment #3 from Carlos Eduardo Seo  ---
(In reply to Robin Dapp from comment #2)
> We already discussed that briefly on the mailing list.  Richard Sandiford
> suspected a target bug.  What options do I need to configure GCC in order to
> reproduce that locally?

You can reproduce exactly what is being done by the CI by following:
https://git-us.linaro.org/toolchain/ci/interesting-commits.git/plain/gcc/sha1/7ca35f2e430081d6ec91e910002f92d9713350fa/tcwg_gnu_embed_check_gcc/master-thumb_m55_hard_eabi/reproduction_instructions.txt

If you prefer to do it manually:

configure  SHELL=/bin/bash \
   
--with-mpc=/home/tcwg-buildslave/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu
\
   
--with-mpfr=/home/tcwg-buildslave/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu
\
   
--with-gmp=/home/tcwg-buildslave/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu
\
--with-gnu-as \
--with-gnu-ld \
--disable-libmudflap \
--enable-lto \
--enable-shared \
--without-included-gettext \
--enable-nls \
--with-system-zlib \
--disable-sjlj-exceptions \
--enable-gnu-unique-object \
--enable-linker-build-id \
--disable-libstdcxx-pch \
--enable-c99 \
--enable-clocale=gnu \
--enable-libstdcxx-debug \
--enable-long-long \
--with-cloog=no \
--with-ppl=no \
--with-isl=no \
--enable-threads=no \
--disable-multiarch \
--disable-multilib \
--with-mode=thumb \
--with-arch=armv8.1-m.main+mve.fp+fp.dp \
--with-float=hard \
   
--with-sysroot=/home/tcwg-buildslave/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu/arm-eabi
\
--with-headers=yes \
--with-native-system-header-dir=/include \
--with-newlib \
--enable-checking=yes \
--disable-bootstrap \
--enable-languages=c,c++,lto \
   
--prefix=/home/tcwg-buildslave/workspace/tcwg_gnu_1/abe/builds/destdir/x86_64-pc-linux-gnu
\
--build=x86_64-pc-linux-gnu \
--host=x86_64-pc-linux-gnu \
--target=arm-eabi

[Bug target/115439] [15 Regression] ICEs after r15-638 on master-thumb_m55_hard_eabi

2024-06-11 Thread rdapp at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115439

Robin Dapp  changed:

   What|Removed |Added

 CC||rdapp at gcc dot gnu.org

--- Comment #2 from Robin Dapp  ---
We already discussed that briefly on the mailing list.  Richard Sandiford
suspected a target bug.  What options do I need to configure GCC in order to
reproduce that locally?

[Bug target/115439] [15 Regression] ICEs after r15-638 on master-thumb_m55_hard_eabi

2024-06-11 Thread pinskia at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115439

--- Comment #1 from Andrew Pinski  ---
https://gcc.gnu.org/pipermail/gcc-patches/2024-June/654086.html

[Bug target/115439] [15 Regression] ICEs after r15-638 on master-thumb_m55_hard_eabi

2024-06-11 Thread pinskia at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115439

Andrew Pinski  changed:

   What|Removed |Added

 Target||arm-eabi
  Component|c++ |target
Summary|[Regression] ICEs after |[15 Regression] ICEs after
   |7ca35f2e43 on   |r15-638 on
   |master-thumb_m55_hard_eabi  |master-thumb_m55_hard_eabi
   Keywords||ice-on-valid-code
   Target Milestone|--- |15.0