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[src/trunk]: src/external/gpl3/gcc/dist/gcc Pull in https://gcc.gnu.org/g:3d9...
details: https://anonhg.NetBSD.org/src/rev/c0fa51523f96
branches: trunk
changeset: 970960:c0fa51523f96
user: wiz <wiz%NetBSD.org@localhost>
date: Wed Apr 08 06:49:28 2020 +0000
description:
Pull in https://gcc.gnu.org/g:3d947f1f27188e3a61ba7f42399b1c348469fe13
middle-end/94479 - fix gimplification of address
When gimplifying an address operand we may expose an indirect
ref via DECL_VALUE_EXPR for example. This is dealt with in the
code already but it fails to consider that INDIRECT_REFs get
gimplified to MEM_REFs.
Fixed which makes the ICE observed on x86_64-netbsd go away.
2020-04-07 Richard Biener <rguenther%suse.de@localhost>
PR middle-end/94479
* gimplify.c (gimplify_addr_expr): Also consider generated
MEM_REFs.
* gcc.dg/torture/pr94479.c: New testcase.
Fixes -fstack-check ICE when building devel/git-base.
diffstat:
external/gpl3/gcc/dist/gcc/gimplify.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diffs (14 lines):
diff -r 582e31ab2221 -r c0fa51523f96 external/gpl3/gcc/dist/gcc/gimplify.c
--- a/external/gpl3/gcc/dist/gcc/gimplify.c Wed Apr 08 04:32:14 2020 +0000
+++ b/external/gpl3/gcc/dist/gcc/gimplify.c Wed Apr 08 06:49:28 2020 +0000
@@ -6072,7 +6072,9 @@
/* For various reasons, the gimplification of the expression
may have made a new INDIRECT_REF. */
- if (TREE_CODE (op0) == INDIRECT_REF)
+ if (TREE_CODE (op0) == INDIRECT_REF
+ || (TREE_CODE (op0) == MEM_REF
+ && integer_zerop (TREE_OPERAND (op0, 1))))
goto do_indirect_ref;
mark_addressable (TREE_OPERAND (expr, 0));
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