diff options
| author |   Max Filippov <jcmvbkbc@gmail.com> | 2017-09-12 18:33:28 (GMT) |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2017-09-12 18:33:28 (GMT) |
| commit | 09259ace3b2a02d6bf854f02c5f92837064697fc (patch) | |
| tree | f6fcba89f704221f1294600a8f2eec5a6bb35a65 /packages/gcc/4.9.4 | |
| parent | 42cb9694fb772ade45aa72f6bce946be053e51df (diff) | |
package/gcc: fix ICE on xtensa, PR target/82181
Memory references to DI mode objects could incorrectly be created at
offsets that are not supported by instructions l32i/s32i, resulting in
ICE at a stage when access to the object is split into access to its
subwords:
drivers/staging/rtl8188eu/core/rtw_ap.c:445:1:
internal compiler error: in change_address_1, at emit-rtl.c:2126
Fixes: https://lkml.org/lkml/2017/9/10/151
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'packages/gcc/4.9.4')
| -rw-r--r-- | packages/gcc/4.9.4/876-xtensa-fix-PR-target-82181.patch | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/packages/gcc/4.9.4/876-xtensa-fix-PR-target-82181.patch b/packages/gcc/4.9.4/876-xtensa-fix-PR-target-82181.patch new file mode 100644 index 0000000..a613bb3 --- /dev/null +++ b/packages/gcc/4.9.4/876-xtensa-fix-PR-target-82181.patch @@ -0,0 +1,31 @@ +From c8fad280eb4cbfe2711e6715aed5749ff400bb80 Mon Sep 17 00:00:00 2001 +From: jcmvbkbc <jcmvbkbc@138bc75d-0d04-0410-961f-82ee72b054a4> +Date: Mon, 11 Sep 2017 21:53:38 +0000 +Subject: [PATCH] xtensa: fix PR target/82181 + +2017-09-11 Max Filippov <jcmvbkbc@gmail.com> +gcc/ + Backport from mainline + * config/xtensa/xtensa.c (xtensa_mem_offset): Check that both + words of DImode object are reachable by xtensa_uimm8x4 access. + +Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> +--- + gcc/config/xtensa/xtensa.c | 1 + + 1 file changed, 1 insertion(+) + +diff --git a/gcc/config/xtensa/xtensa.c b/gcc/config/xtensa/xtensa.c +index 3c0096113775..3eb4db85b971 100644 +--- a/gcc/config/xtensa/xtensa.c ++++ b/gcc/config/xtensa/xtensa.c +@@ -612,6 +612,7 @@ xtensa_mem_offset (unsigned v, enum machine_mode mode) + case HImode: + return xtensa_uimm8x2 (v); + ++ case DImode: + case DFmode: + return (xtensa_uimm8x4 (v) && xtensa_uimm8x4 (v + 4)); + +-- +2.1.4 + |