On Thu, Feb 11, 2021 at 03:03:38PM +0000, Richard Sandiford via Gcc-patches
wrote:
> gcc/
> * df-problems.c (df_lr_bb_local_compute): Treat partial definitions
> as read-modify operations.
>
> gcc/testsuite/
> * gcc.dg/rtl/aarch64/multi-subreg-1.c: New test.
The test fails everywhere but on aarch64.
Fixed thusly, tested on x86_64-linux -m32/-m64, committed to trunk as
obvious:
2021-02-13 Jakub Jelinek <ja...@redhat.com>
* gcc.dg/rtl/aarch64/multi-subreg-1.c: Add dg-do compile directive
and restrict the test to aarch64-*-* target only.
--- gcc/testsuite/gcc.dg/rtl/aarch64/multi-subreg-1.c.jj 2021-02-12
23:57:30.594140834 +0100
+++ gcc/testsuite/gcc.dg/rtl/aarch64/multi-subreg-1.c 2021-02-13
00:01:04.935749889 +0100
@@ -1,3 +1,4 @@
+/* { dg-do compile { target aarch64-*-* } } */
/* { dg-additional-options "-O -fdump-rtl-cse1-all" } */
__int128 __RTL (startwith ("vregs")) foo (void)
Jakub
