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commit: 3f9f4ffb0ee9da59e44ff405a872c00736fa7159 |
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Author: Sergei Trofimovich <slyfox <AT> gentoo <DOT> org> |
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AuthorDate: Sun Nov 1 00:32:41 2020 +0000 |
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Commit: Sergei Trofimovich <slyfox <AT> gentoo <DOT> org> |
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CommitDate: Sun Nov 1 00:32:41 2020 +0000 |
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URL: https://gitweb.gentoo.org/proj/gcc-patches.git/commit/?id=3f9f4ffb |
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|
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9.3.0: backport assume_aligned fix (PR94163) |
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|
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Reported-by: Ervin Peters |
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Bug: https://bugs.gentoo.org/750905 |
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Bug: https://gcc.gnu.org/PR94163 |
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Signed-off-by: Sergei Trofimovich <slyfox <AT> gentoo.org> |
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|
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9.3.0/gentoo/32_all_assume-aligned.patch | 31 +++++++++++++++++++++++++++++++ |
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9.3.0/gentoo/README.history | 1 + |
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2 files changed, 32 insertions(+) |
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|
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diff --git a/9.3.0/gentoo/32_all_assume-aligned.patch b/9.3.0/gentoo/32_all_assume-aligned.patch |
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new file mode 100644 |
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index 0000000..10dffbb |
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--- /dev/null |
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+++ b/9.3.0/gentoo/32_all_assume-aligned.patch |
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@@ -0,0 +1,31 @@ |
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+https://bugs.gentoo.org/750905 |
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+https://gcc.gnu.org/PR94163 |
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+ |
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+From db3584552871c8caccdc22e97ea1573da9458253 Mon Sep 17 00:00:00 2001 |
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+From: Richard Biener <rguenther@××××.de> |
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+Date: Fri, 13 Mar 2020 13:56:26 +0100 |
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+Subject: [PATCH] tree-optimization/94163 constrain alignment set by PRE |
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+ |
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+This avoids HWI -> unsigned truncation to end up with zero alignment |
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+which set_ptr_info_alignment ICEs on. |
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+ |
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+2020-03-13 Richard Biener <rguenther@××××.de> |
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+ |
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+ PR tree-optimization/94163 |
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+ * tree-ssa-pre.c (create_expression_by_pieces): Check |
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+ whether alignment would be zero. |
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+--- a/gcc/tree-ssa-pre.c |
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++++ b/gcc/tree-ssa-pre.c |
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+@@ -2810,7 +2810,8 @@ create_expression_by_pieces (basic_block block, pre_expr expr, |
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+ unsigned HOST_WIDE_INT hmisalign |
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+ = args.length () == 3 ? tree_to_uhwi (args[2]) : 0; |
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+ if ((halign & (halign - 1)) == 0 |
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+- && (hmisalign & ~(halign - 1)) == 0) |
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++ && (hmisalign & ~(halign - 1)) == 0 |
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++ && (unsigned int)halign != 0) |
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+ set_ptr_info_alignment (get_ptr_info (forcedname), |
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+ halign, hmisalign); |
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+ } |
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+-- |
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+2.29.2 |
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+ |
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|
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diff --git a/9.3.0/gentoo/README.history b/9.3.0/gentoo/README.history |
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index ff47a81..70b06c9 100644 |
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--- a/9.3.0/gentoo/README.history |
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+++ b/9.3.0/gentoo/README.history |
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@@ -2,6 +2,7 @@ |
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+ 30_all_plugin-objdump.patch |
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U 11_all_extra-options.patch |
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+ 31_all_ipa-to_frequency.patch |
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+ + 32_all_assume-aligned.patch |
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|
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3 29 May 2020 |
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+ 29_all_libcpp-ar.patch |
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