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package/gcc: fix ICE on xtensa, PR target/82181

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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>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Max Filippov 2017-09-12 13:52:37 -07:00 committed by Peter Korsgaard
parent 8681b9477b
commit 8afd8781fe
4 changed files with 124 additions and 0 deletions
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31
package/gcc/4.8.5/875-xtensa-fix-PR-target-82181.patch Normal file
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@ -0,0 +1,31 @@
From 65a3028024a5963d9b988d70fe7ebe116c731310 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 f08854729f50..4b94179636e0 100644
--- a/gcc/config/xtensa/xtensa.c
+++ b/gcc/config/xtensa/xtensa.c
@@ -599,6 +599,7 @@ 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

31
package/gcc/4.9.4/875-xtensa-fix-PR-target-82181.patch Normal file
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@ -0,0 +1,31 @@
From 672910e3d1215b781cf0e4757e473f6a25ebf756 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 67b369f015ad..3d1d981f885d 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

31
package/gcc/5.4.0/877-xtensa-fix-PR-target-82181.patch Normal file
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@ -0,0 +1,31 @@
From 329c471661493e48e0fc65fa6c17ef86517483ed 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 36ab1e370853..bf02fceb416e 100644
--- a/gcc/config/xtensa/xtensa.c
+++ b/gcc/config/xtensa/xtensa.c
@@ -637,6 +637,7 @@ xtensa_mem_offset (unsigned v, machine_mode mode)
case HImode:
return xtensa_uimm8x2 (v);
+ case DImode:
case DFmode:
return (xtensa_uimm8x4 (v) && xtensa_uimm8x4 (v + 4));
--
2.1.4

31
package/gcc/6.3.0/872-xtensa-fix-PR-target-82181.patch Normal file
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@ -0,0 +1,31 @@
From dc90c186f755e726a097c9bb8bf6c4e7a45d8a07 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 70f698aba0ae..750b685b23e7 100644
--- a/gcc/config/xtensa/xtensa.c
+++ b/gcc/config/xtensa/xtensa.c
@@ -601,6 +601,7 @@ xtensa_mem_offset (unsigned v, machine_mode mode)
case HImode:
return xtensa_uimm8x2 (v);
+ case DImode:
case DFmode:
return (xtensa_uimm8x4 (v) && xtensa_uimm8x4 (v + 4));
--
2.1.4