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* [gcc(refs/vendors/ARM/heads/morello)] valtrack.c: Fix ICE via cleanup_auto_inc_dec
@ 2022-07-12 10:36 Alex Coplan
0 siblings, 0 replies; only message in thread
From: Alex Coplan @ 2022-07-12 10:36 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:789c38b3ebf63693034b28d32c1b82b9dc3d0406
commit 789c38b3ebf63693034b28d32c1b82b9dc3d0406
Author: Alex Coplan <alex.coplan@arm.com>
Date: Thu Jun 23 14:39:01 2022 +0100
valtrack.c: Fix ICE via cleanup_auto_inc_dec
gcc/ChangeLog:
* valtrack.c (cleanup_auto_inc_dec): Handle capability modes for
PRE_{INC,DEC}.
gcc/testsuite/ChangeLog:
* gcc.target/aarch64/morello/valtrack-ice.c: New test.
Diff:
---
gcc/testsuite/gcc.target/aarch64/morello/valtrack-ice.c | 15 +++++++++++++++
gcc/valtrack.c | 9 ++++++---
2 files changed, 21 insertions(+), 3 deletions(-)
diff --git a/gcc/testsuite/gcc.target/aarch64/morello/valtrack-ice.c b/gcc/testsuite/gcc.target/aarch64/morello/valtrack-ice.c
new file mode 100644
index 00000000000..871b62e96cd
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/morello/valtrack-ice.c
@@ -0,0 +1,15 @@
+/* { dg-do compile } */
+/* { dg-additional-options "-O2 -g" } */
+void fmtinfo(char *fmt) {
+ int c = 0;
+ do {
+ switch (c) {
+ default:
+ if ((c = fmt[1]) && c != 'l')
+ case '.':
+ if (fmt)
+ --fmt;
+ }
+ }
+ while (c = *++fmt);
+}
diff --git a/gcc/valtrack.c b/gcc/valtrack.c
index 74259f25fa8..6d8e16c4581 100644
--- a/gcc/valtrack.c
+++ b/gcc/valtrack.c
@@ -99,9 +99,12 @@ cleanup_auto_inc_dec (rtx src, machine_mode mem_mode ATTRIBUTE_UNUSED)
poly_int64 offset = GET_MODE_SIZE (mem_mode);
if (code == PRE_DEC)
offset = -offset;
- return gen_rtx_PLUS (GET_MODE (x),
- cleanup_auto_inc_dec (XEXP (x, 0), mem_mode),
- gen_int_mode (offset, GET_MODE (x)));
+
+ const auto sa = as_a <scalar_addr_mode> (GET_MODE (x));
+ return gen_raw_pointer_plus (sa,
+ cleanup_auto_inc_dec (XEXP (x, 0),
+ mem_mode),
+ gen_int_mode (offset, offset_mode (sa)));
}
case POST_INC:
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