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* [gcc(refs/vendors/redhat/heads/gcc-8-branch)] aarch64: Fix ICE in final_scan_insn_1 [PR87839]
@ 2021-05-14 14:57 Jakub Jelinek
0 siblings, 0 replies; only message in thread
From: Jakub Jelinek @ 2021-05-14 14:57 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:a17b5e581d4107566d5ceedd5bbeec386fd060d9
commit a17b5e581d4107566d5ceedd5bbeec386fd060d9
Author: Jakub Jelinek <jakub@redhat.com>
Date: Wed Nov 21 17:41:03 2018 +0100
aarch64: Fix ICE in final_scan_insn_1 [PR87839]
2021-05-07 Jakub Jelinek <jakub@redhat.com>
PR target/87839
* config/aarch64/atomics.md (aarch64_compare_and_swap<mode>): Use
rIJ constraint for aarch64_plus_operand rather than rn.
* gcc.target/aarch64/pr87839.c: New test.
Diff:
---
gcc/config/aarch64/atomics.md | 2 +-
gcc/testsuite/gcc.target/aarch64/pr87839.c | 29 +++++++++++++++++++++++++++++
2 files changed, 30 insertions(+), 1 deletion(-)
diff --git a/gcc/config/aarch64/atomics.md b/gcc/config/aarch64/atomics.md
index 0e0b0373192..d3f2b5da7f5 100644
--- a/gcc/config/aarch64/atomics.md
+++ b/gcc/config/aarch64/atomics.md
@@ -74,7 +74,7 @@
(match_operand:GPI 1 "aarch64_sync_memory_operand" "+Q")) ;; memory
(set (match_dup 1)
(unspec_volatile:GPI
- [(match_operand:GPI 2 "aarch64_plus_operand" "rn") ;; expect
+ [(match_operand:GPI 2 "aarch64_plus_operand" "rIJ") ;; expect
(match_operand:GPI 3 "aarch64_reg_or_zero" "rZ") ;; desired
(match_operand:SI 4 "const_int_operand") ;; is_weak
(match_operand:SI 5 "const_int_operand") ;; mod_s
diff --git a/gcc/testsuite/gcc.target/aarch64/pr87839.c b/gcc/testsuite/gcc.target/aarch64/pr87839.c
new file mode 100644
index 00000000000..1da0830be4f
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/pr87839.c
@@ -0,0 +1,29 @@
+/* PR target/87839 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -w" } */
+
+long long b[64];
+void foo (void);
+int bar (void (*) (void));
+void qux (long long *, long long) __attribute__((noreturn));
+void quux (long long *, long long);
+
+void
+baz (void)
+{
+ __sync_val_compare_and_swap (b, 4294967298LL, 78187493520LL);
+ __sync_bool_compare_and_swap (b + 1, 8589934595LL, 21474836489LL);
+ __sync_fetch_and_xor (b, 60129542145LL);
+ quux (b, 42949672967LL);
+ __sync_xor_and_fetch (b + 22, 60129542145LL);
+ quux (b + 23, 42949672967LL);
+ if (bar (baz))
+ __builtin_abort ();
+ foo ();
+ __sync_val_compare_and_swap (b, 4294967298LL, 0);
+ __sync_bool_compare_and_swap (b + 1, 8589934595LL, 78187493520LL);
+ if (__sync_or_and_fetch (b, 21474836489LL) != 21474836489LL)
+ qux (b + 22, 60129542145LL);
+ __atomic_fetch_nand (b + 23, 42949672967LL, __ATOMIC_RELAXED);
+ bar (baz);
+}
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