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GCC, the GNU Compiler Collection that is the Free Software Foundation open-source compiler for C, C++, Fortran, Java, ADA, and other languages.

Other Activity This Week

[patch1/2][arm][PR90317]: fix sha1 patterns
ktkachov: This patch fixes: 1) Ice message thrown when using the crypto_sha1h intrinsic due to incompatible mode used for zero_extend.

Add parens around constraint in .
jason: C++20 concepts require parens around atomic constraints that are not primary-expressions.

runtime: expose the g variable
ian: Currently, getg is implemented in C, which loads the thread-local g variable.

Recent Activity

[patch1/2][arm][PR90317]: fix sha1 patterns
ktkachov: This patch fixes: 1) Ice message thrown when using the crypto_sha1h intrinsic due to incompatible mode used for zero_extend.

Add parens around constraint in .
jason: C++20 concepts require parens around atomic constraints that are not primary-expressions.

runtime: expose the g variable
ian: Currently, getg is implemented in C, which loads the thread-local g variable.

rs6000: Shut up -Wformat-diag somewhat
segher: We currently get lot of build warnings like /home/segher/src/gcc/gcc/config/rs6000/rs6000-c.c:7039:12: warning: misspelled term 'builtin function' in format; use 'built-in function' instead [-Wformat-diag] 7039 | error ("builtin function %qs not supported in this compiler " | ^~~~~~~~~~~~~~~~ That would print something like builtin function '__builtin_example' not supported in this compiler Changing that to "built-in" as suggested only makes this worse.

Support multiple operand counts for .md @ patterns
rsandifo: This patch extends the support for "@..." pattern names so that the patterns can have different numbers of operands.

Add hint if the fallthrough target of current BB isn't the one placed closely next
linkw: Add hint if the fallthrough target of current BB isn't the one placed closely next.

Define std::atomic_ref and std::atomic for C++20
redi: This adds the new atomic types from C++2a, as proposed by P0019 and P0020.

i386: Add AVX512 unaligned intrinsics
hjl: __m512i _mm512_loadu_epi64( void * sa); void _mm512_storeu_epi64(void * d, __m512i a); __m512i _mm512_loadu_epi32( void * sa); void _mm512_storeu_epi32(void * d, __m512i a); void _mm256_storeu_epi64(void * d, __m256i a); void _mm_storeu_epi64(void * d, __m128i a); void _mm256_storeu_epi32(void * d, __m256i a); void _mm_storeu_epi32(void * d, __m128i a); Tested on x86-64. 2019-07-11 Sunil K Pandey gcc/ PR target/90980 - config/i386/avx512fintrin.h (_mm512_loadu_epi64): New.

[Ada] Refactor ownership pointer checking in SPARK as a generic
pmderodat: Ownership checking as done in SPARK should be applied only to SPARK code, which requires GNATprove knowledge of the SPARK_Mode boundary.

[Ada] GNAT.Sockets: support ICMP, IGMP and RAW IP protocol levels
pmderodat: 2019-07-11 Dmitriy Anisimkov

GCC Release Tags

libgo: update to Go 1.12.2
ian: Reviewed-on:

libgo: update to Go 1.12.1
ian: Reviewed-on:

libgo: update to Go 1.12 release
ian: Reviewed-on:

libgo: update to Go 1.11.1 release
ian: Reviewed-on:

[libgomp, nvptx] Note that cuGetErrorString is in CUDA_VERSION >= 6000
vries: Cuda driver api function cuGetErrorString is available in version 6.0 and higher. This patch:- removes a comment saying the declaration is not available in cuda.h 6.0- fixes the presence test to use CUDA_VERSION < 6000- moves the declaration to toplevel Build on x86_64 with nvptx accelerator and reg-tested libgomp. 2018-08-08 Tom de Vries - plugin/plugin-nvptx.c (cuda_error): Move declaration of cuGetErrorString ...

libgo: update to Go 1.10.3 release
ian: Reviewed-on:

libgo: update to Go 1.10.2 release
ian: Reviewed-on:

libgo: update to final Go 1.10 release
ian: Reviewed-on:

Cleanup Solaris linker version checks
ro: - acinclude.m4 (gcc_AC_INITFINI_ARRAY): Don't require gcc_SUN_LD_VERSION.

Conversion operators have a special name * cp-tree.h (CPTI_CONV_OP_MARKER, CPTI_CONV_OP_IDENTIFIER): New. (conv_op_marker, conv_op_identifier): New. (CLASSTYPE_F
nathan: Conversion operators have a special name - cp-tree.h (CPTI_CONV_OP_MARKER, CPTI_CONV_OP_IDENTIFIER): New.

Most Popular In The Past Month

Add zstd support for LTO bytecode compression
marxin: 2019-07-03 Martin Liska - Makefile.in: Define ZSTD_LIB. - common.opt: Adjust compression level to support also zstd levels. - config.in: Regenerate. - configure: Likewise. - configure.ac: Add --with-zstd and --with-zstd-include options and detect ZSTD. - doc/install.texi: Mention zstd dependency. - gcc.c: Print supported LTO compression algorithms. - lto-compress.c (lto_normalized_zstd_level): Likewise.

[PATCH, rs6000] Split up rs6000.c
seurer: The source file rs6000.c has grown to unreasonable size and is being split up into several smaller source files.

[Ada] Add contracts to Ada.Text_IO for SPARK
pmderodat: This change removes the warnings returned when using Ada.Text_IO library in SPARK.

Enable full GFortran library for AMD GCN
ams: 2019-06-25 Kwok Cheung Yeung Andrew Stubbs

Create GCN-specific gthreads
ams: 2019-06-25 Kwok Cheung Yeung Andrew Stubbs gcc/ - config.gcc (thread_file): Set to gcn for AMD GCN. - config/gcn/gcn.c (gcn_emutls_var_init): New function.

Darwin, add a missed file change
iains: From the last commit.

rs6000: Remove duplicated code
segher: A large portion of the code moved from rs6000.c (to rs6000-logue.c) was accidentally retained.

Remove quite obvious dead assignments
marxin: 2019-06-27 Martin Liska - asan.c (asan_emit_allocas_unpoison): Remove obviously dead assignments. - bt-load.c (move_btr_def): Likewise. - builtins.c (expand_builtin_apply_args_1): Likewise.

[Ada] Implement GNAT.Graphs
pmderodat: This patch introduces new unit GNAT.Graphs which currently provides a directed graph abstraction. -- Source -- -- operations.adb with Ada.Text_IO; use Ada.Text_IO; with GNAT; use GNAT; with GNAT.Graphs; use GNAT.Graphs; with GNAT.Sets; use GNAT.Sets; procedure Operations is type Vertex_Id is (No_V, VA, VB, VC, VD, VE, VF, VG, VH, VX, VY, VZ); No_Vertex_Id : constant Vertex_Id := No_V; function Hash_Vertex (V : Vertex_Id) return Bucket_Range_Type; type Edge_Id is (No_E, E1, E2, E3, E4, E5, E6, E7, E8, E9, E10, E97, E98, E99); No_Edge_Id : constant Edge_Id := No_E; function Hash_Edge (E : Edge_Id) return Bucket_Range_Type; package ES is new Membership_Set (Element_Type => Edge_Id, "=" => "=", Hash => Hash_Edge); package DG is new Directed_Graph (Vertex_Id => Vertex_Id, No_Vertex => No_Vertex_Id, Hash_Vertex => Hash_Vertex, Same_Vertex => "=", Edge_Id => Edge_Id, No_Edge => No_Edge_Id, Hash_Edge => Hash_Edge, Same_Edge => "="); use DG; package VS is new Membership_Set (Element_Type => Vertex_Id, "=" => "=", Hash => Hash_Vertex); -- Local subprograms -- procedure Check_Belongs_To_Component (R : String; G : Instance; V : Vertex_Id; Exp_Comp : Component_Id);-- Verify that vertex V of graph G belongs to component Exp_Comp.

[Ada] New algorithm for Elaboration order v4.0
pmderodat: This patch introduces several changes to the new elaboration order mechanism: - The concept of "strong" and "weak" edges is introduced.

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