diff options
Diffstat (limited to 'gnu/packages')
| -rw-r--r-- | gnu/packages/gcc.scm | 6 | ||||
| -rw-r--r-- | gnu/packages/patches/gcc-10-tree-sra-union-handling.patch | 33 | ||||
| -rw-r--r-- | gnu/packages/rust.scm | 8 |
3 files changed, 37 insertions, 10 deletions
diff --git a/gnu/packages/gcc.scm b/gnu/packages/gcc.scm index 0d8a62cbe7..a957ae3480 100644 --- a/gnu/packages/gcc.scm +++ b/gnu/packages/gcc.scm @@ -665,7 +665,8 @@ It also includes runtime support libraries for these languages.") (base32 "1wg4xdizkksmwi66mvv2v4pk3ja8x64m7v9gzhykzd3wrmdpsaf9")) (patches (search-patches "gcc-9-strmov-store-file-names.patch" - "gcc-5.0-libvtv-runpath.patch")) + "gcc-5.0-libvtv-runpath.patch" + "gcc-10-tree-sra-union-handling.patch")) (modules '((guix build utils))) (snippet gcc-canadian-cross-objdump-snippet))) (properties @@ -686,7 +687,8 @@ It also includes runtime support libraries for these languages.") (base32 "0fdclcwf728wbq52vphfcjywzhpsjp3kifzj3pib3xcihs0z4z5l")) (patches (search-patches "gcc-9-strmov-store-file-names.patch" - "gcc-5.0-libvtv-runpath.patch")) + "gcc-5.0-libvtv-runpath.patch" + "gcc-10-tree-sra-union-handling.patch")) (modules '((guix build utils))) (snippet gcc-canadian-cross-objdump-snippet))) diff --git a/gnu/packages/patches/gcc-10-tree-sra-union-handling.patch b/gnu/packages/patches/gcc-10-tree-sra-union-handling.patch new file mode 100644 index 0000000000..aae5fc9f72 --- /dev/null +++ b/gnu/packages/patches/gcc-10-tree-sra-union-handling.patch @@ -0,0 +1,33 @@ +Fix a regression in GCC 10/11/12 where some union structures +could get miscompiled when optimizations are enabled: + + https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105860 + +Taken from upstream: + + https://gcc.gnu.org/g:16afe2e2862f3dd93c711d7f8d436dee23c6c34d + +diff --git a/gcc/tree-sra.c b/gcc/tree-sra.c +index 09d951a261b..420329f63f6 100644 +--- a/gcc/tree-sra.c ++++ b/gcc/tree-sra.c +@@ -1647,7 +1647,18 @@ build_ref_for_offset (location_t loc, tree base, poly_int64 offset, + static tree + build_reconstructed_reference (location_t, tree base, struct access *model) + { +- tree expr = model->expr, prev_expr = NULL; ++ tree expr = model->expr; ++ /* We have to make sure to start just below the outermost union. */ ++ tree start_expr = expr; ++ while (handled_component_p (expr)) ++ { ++ if (TREE_CODE (TREE_TYPE (TREE_OPERAND (expr, 0))) == UNION_TYPE) ++ start_expr = expr; ++ expr = TREE_OPERAND (expr, 0); ++ } ++ ++ expr = start_expr; ++ tree prev_expr = NULL_TREE; + while (!types_compatible_p (TREE_TYPE (expr), TREE_TYPE (base))) + { + if (!handled_component_p (expr)) diff --git a/gnu/packages/rust.scm b/gnu/packages/rust.scm index 25472fefb0..759bf9a631 100644 --- a/gnu/packages/rust.scm +++ b/gnu/packages/rust.scm @@ -169,14 +169,6 @@ ("zlib" ,zlib))) (native-inputs `(("bison" ,bison) - ;; A compiler bug in gcc 10/11/12/13 prevents us from using gcc-10.4. See: - ;; https://github.com/thepowersgang/mrustc/issues/266 - ;; https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105860 - ("gcc" ,gcc-9) - ;; TODO: STARTFILE_PREFIX_SPEC is fixed on gcc<10 on core-updates. - ,@(if (target-riscv64?) - `(("gcc:lib" ,gcc-9 "lib")) - '()) ("flex" ,flex) ("pkg-config" ,pkg-config) ;; Required for the libstd sources. |