[Bug target/99422] New: [11 Regression] ICE in extract_constrain_insn building glibc pthread_create

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99422 Bug ID: 99422 Summary: [11 Regression] ICE in extract_constrain_insn building glibc pthread_create Product: gcc Version: 11.0 Status: UNCONFIRMED Keywords: ice-

[Bug c/100184] Detect variables which are only "used" in updating themselves

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100184 Joseph S. Myers changed: What|Removed |Added Resolution|--- |DUPLICATE Status|UNCONFIR

[Bug c/44677] Warn for variables incremented but not used

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44677 Joseph S. Myers changed: What|Removed |Added CC||eyalroz1 at gmx dot com --- Comment #1

[Bug preprocessor/97602] New: #line overflow check incomplete

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97602 Bug ID: 97602 Summary: #line overflow check incomplete Product: gcc Version: 11.0 Status: UNCONFIRMED Keywords: accepts-invalid Severity: normal Priority: P3

[Bug preprocessor/97604] New: Bad digit separators accepted in pp-numbers

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97604 Bug ID: 97604 Summary: Bad digit separators accepted in pp-numbers Product: gcc Version: 11.0 Status: UNCONFIRMED Keywords: rejects-valid Severity: normal Prior

[Bug libgcc/97635] New: binary-to-DFP conversions incorrect

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97635 Bug ID: 97635 Summary: binary-to-DFP conversions incorrect Product: gcc Version: 11.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: libgcc

[Bug libgcc/97635] binary-to-DFP conversions incorrect

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97635 --- Comment #1 from Joseph S. Myers --- With some analysis of the worst cases (for every possible pair of source and target exponents) using continued fractions, it would also be possible to determine a single precision value that is always corre

[Bug target/97683] New: [11 Regression] nios2 assembler branch offset errors building glibc

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97683 Bug ID: 97683 Summary: [11 Regression] nios2 assembler branch offset errors building glibc Product: gcc Version: 11.0 Status: UNCONFIRMED Keywords: assemble-fai

[Bug c/97882] [8/9/10/11 Regression] Segmentation Fault on improper redeclaration of function

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97882 Joseph S. Myers changed: What|Removed |Added Last reconfirmed||2020-11-17 Target Milestone|---

[Bug c/95630] rejects-valid on comparison of pointers to complete vs incomplete types in C11 mode

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95630 Joseph S. Myers changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|---

[Bug preprocessor/97602] #line overflow check incomplete

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97602 Joseph S. Myers changed: What|Removed |Added Resolution|--- |FIXED Target Milestone|---

[Bug preprocessor/82359] #line does not allow C++14 quotes in number

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82359 Joseph S. Myers changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|---

[Bug c/100353] [11/12 Regression] Accepts invalid label

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100353 Joseph S. Myers changed: What|Removed |Added Resolution|--- |INVALID Status|UNCONFIRME

[Bug c++/83873] adjacent digit separators are accepted in the exponent-part of floating-point literals

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83873 Joseph S. Myers changed: What|Removed |Added Resolution|--- |FIXED Target Milestone|---

[Bug preprocessor/97604] Bad digit separators accepted in pp-numbers

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97604 Joseph S. Myers changed: What|Removed |Added Resolution|--- |FIXED Status|UNCONFIRMED

[Bug c/100792] ICE: gimplify_expr, at gimplify.c:14879

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100792 Joseph S. Myers changed: What|Removed |Added Version|tree-ssa|12.0 Status|RESOLVED

[Bug middle-end/101170] New: [12 Regression] ICE in df_ref_record building libgomp for ColdFire

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101170 Bug ID: 101170 Summary: [12 Regression] ICE in df_ref_record building libgomp for ColdFire Product: gcc Version: 12.0 Status: UNCONFIRMED Keywords: ice-on-vali

[Bug c/101212] forward declaration of parameter

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101212 Joseph S. Myers changed: What|Removed |Added Resolution|--- |DUPLICATE Status|UNCONFIR

[Bug c/23144] [9/10/11/12 Regression] invalid parameter forward declarations not diagnosed

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=23144 Joseph S. Myers changed: What|Removed |Added CC||muecker at gwdg dot de --- Comment #27

[Bug c/108375] New: [10/11/12/13 Regression] Some variably modified types not detected as such

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108375 Bug ID: 108375 Summary: [10/11/12/13 Regression] Some variably modified types not detected as such Product: gcc Version: 13.0 Status: UNCONFIRMED Severity: nor

[Bug target/108484] New: [13 Regression] ICE building glibc for ia64 in cselib_subst_to_values, at cselib.cc:2148

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108484 Bug ID: 108484 Summary: [13 Regression] ICE building glibc for ia64 in cselib_subst_to_values, at cselib.cc:2148 Product: gcc Version: 13.0 Status: UNCONFIRMED

[Bug debug/106746] [13 Regression] '-fcompare-debug' failure (length) with -O2 -fsched2-use-superblocks since r13-2041-g6624ad73064de241

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106746 --- Comment #22 from Joseph S. Myers --- The fix introduced a regression building glibc for ia64-linux-gnu, see bug 108484.

[Bug target/103370] [12/13 Regression] Assembler error building glibc for ColdFire soft-float

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103370 --- Comment #9 from Joseph S. Myers --- The glibc build failure has done away and come back at least once since my previous comment. It came back (I think the most recent time) with commit 4fa25a7eb322f0a003c1eb15680c71ece345e01e Author: Ma

[Bug target/106282] [10/11/12/13 Regression] m68k: Problem with thread-local storage and -mcpu=5206 since r9-2326-gede9446c26a929

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106282 Joseph S. Myers changed: What|Removed |Added Target Milestone|--- |10.5 Summary|m68k: Problem

[Bug target/104829] [12 Regression] Pure 32-bit PowerPC build broken

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104829 --- Comment #8 from Joseph S. Myers --- Created attachment 52597 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52597&action=edit preprocessed source Preprocessed source attached.

[Bug target/104829] [12 Regression] Pure 32-bit PowerPC build broken

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104829 --- Comment #9 from Joseph S. Myers --- Created attachment 52598 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52598&action=edit generated assembly Assembly output attached.

[Bug c/105180] [9/10/11/12 Regression] K&R style definition does not evaluate array size

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105180 Joseph S. Myers changed: What|Removed |Added Summary|K&R style definition does |[9/10/11/12 Regression] K&R

[Bug preprocessor/105412] New: [10/11/12 Regression] Missing phony target with -MP for first include when compiling from stdin

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105412 Bug ID: 105412 Summary: [10/11/12 Regression] Missing phony target with -MP for first include when compiling from stdin Product: gcc Version: 12.0 Status: UNCONFIRMED

[Bug c++/106646] [C++23] P2437R1 - Support for #warning

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106646 --- Comment #1 from Joseph S. Myers --- Enabled for C2x (i.e. stopped -pedantic diagnosing it) with commit d7c3000147c1d8090f66a2baf4623d2c0dfe8eb6 - C++ will presumably want to adjust the diagnostics as well as enabling for relevant C++ version

[Bug target/103370] [12/13 Regression] Assembler error building glibc for ColdFire soft-float

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103370 --- Comment #8 from Joseph S. Myers --- This build failure has come back on GCC mainline, some time between commit 3cab897a67af120aa18efa7ddd7ee49b9a29e5dd and 7f5ec900e53f6c7f7c06c641b4fb303ebdc83785.

[Bug c/21343] [10/11/12/13 Regression] incompatible internal linkage declarations in different scopes not diagnosed

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=21343 Joseph S. Myers changed: What|Removed |Added CC||pavel.morozkin at gmail dot com --- Co

[Bug c/106797] Improvement: diagnose undefined behavior: not all declarations that refer to the same object or function have compatible type

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106797 Joseph S. Myers changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|---

[Bug c++/107080] New: ICE in verify_symtab_nodes using _Float64x with long double

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107080 Bug ID: 107080 Summary: ICE in verify_symtab_nodes using _Float64x with long double Product: gcc Version: 13.0 Status: UNCONFIRMED Keywords: ice-on-valid-code

[Bug middle-end/107088] New: [13 Regression] cselib ICE building __trunctfxf2 on ia64

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107088 Bug ID: 107088 Summary: [13 Regression] cselib ICE building __trunctfxf2 on ia64 Product: gcc Version: 13.0 Status: UNCONFIRMED Keywords: ice-on-valid-code

[Bug c/36113] fix C enumerators

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=36113 Joseph S. Myers changed: What|Removed |Added Target Milestone|--- |13.0 Resolution|---

[Bug c/107164] No pedantic warning for declaration just referring to a previously-declared enum type

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107164 Joseph S. Myers changed: What|Removed |Added Target Milestone|--- |13.0 Resolution|---

[Bug c/107314] [13 Regression] New -Wsign-compare since r13-3360-g3b3083a598ca3f4b

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107314 Joseph S. Myers changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|---

[Bug preprocessor/104147] [9/10/11/12 Regression] C preprocessor may remove the standard required whitespace between the preprocessing tokens

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104147 Joseph S. Myers changed: What|Removed |Added Known to fail||3.2.3 Known to work|

[Bug c/103031] [12 Regression] Missing static initializer folding with -frounding-math

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103031 Joseph S. Myers changed: What|Removed |Added Resolution|--- |FIXED Status|NEW

[Bug target/103370] New: [12 Regression] Assembler error building glibc for ColdFire soft-float

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103370 Bug ID: 103370 Summary: [12 Regression] Assembler error building glibc for ColdFire soft-float Product: gcc Version: 12.0 Status: UNCONFIRMED Keywords: assembl

[Bug target/103370] [12 Regression] Assembler error building glibc for ColdFire soft-float

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103370 --- Comment #4 from Joseph S. Myers --- It seems this glibc build failure disappeared between commit b880d1514c1e3dd75a6ea311a5cc956742bd713c and commit 8e836af61b7027c0819da62c12a8d18b7c46f3fc. (Not verified that the GCC change was what's rele

[Bug c++/19992] -fhosted/-ffreestanding for C++

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19992 Joseph S. Myers changed: What|Removed |Added Known to fail||4.2.0 Target Milestone|---

[Bug target/103722] New: [12 Regression] ICE in extract_constrain_insn building glibc for SH4

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103722 Bug ID: 103722 Summary: [12 Regression] ICE in extract_constrain_insn building glibc for SH4 Product: gcc Version: 12.0 Status: UNCONFIRMED Keywords: ice-on-va

[Bug middle-end/102133] New: [12 Regression] ICE in set_rtl building libgcc __muldc3 for 32-bit SPARC

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102133 Bug ID: 102133 Summary: [12 Regression] ICE in set_rtl building libgcc __muldc3 for 32-bit SPARC Product: gcc Version: 12.0 Status: UNCONFIRMED Keywords: ice-o

[Bug target/102127] [12 Regression] ICE when compiling (m32) powerpc/440-mulchw-1.c since g:ff6bb9dde10ab665a35bb75527313cd9f7d52f8e

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102127 Joseph S. Myers changed: What|Removed |Added CC||jsm28 at gcc dot gnu.org --- Comment

[Bug middle-end/102630] New: [12 Regression] Spurious -Warray-bounds with named address space

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102630 Bug ID: 102630 Summary: [12 Regression] Spurious -Warray-bounds with named address space Product: gcc Version: 12.0 Status: UNCONFIRMED Keywords: rejects-valid

[Bug c/102821] Tentative definition of variable with internal linkage has incomplete non-array type: missing diagnostics

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102821 Joseph S. Myers changed: What|Removed |Added Resolution|--- |DUPLICATE Status|NEW

[Bug c/88727] Diagnostics improvement: Detection of undefined behaviour. Incomplete type in tenative definition with internal linkage. [-Wtentative-definition-incomplete-type]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88727 Joseph S. Myers changed: What|Removed |Added CC||pavel.morozkin at gmail dot com --- Co

[Bug middle-end/103031] New: [12 Regression] Missing static initializer folding with -frounding-math

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103031 Bug ID: 103031 Summary: [12 Regression] Missing static initializer folding with -frounding-math Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal

[Bug c/61469] language feature: Support for enum underlying type

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61469 Joseph S. Myers changed: What|Removed |Added Status|NEW |ASSIGNED Assignee|unassigned

[Bug c/61469] language feature: Support for enum underlying type

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61469 Joseph S. Myers changed: What|Removed |Added Resolution|--- |FIXED Status|ASSIGNED

[Bug c++/107148] [10/11/12/13 Regression] ICE in bot_manip, at cp/tree.cc:3252

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107148 Joseph S. Myers changed: What|Removed |Added CC||jsm28 at gcc dot gnu.org --- Comment

[Bug libgcc/105669] DFP to HF (_Float16) conversions use incorrect rounding

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105669 Joseph S. Myers changed: What|Removed |Added Last reconfirmed||2022-05-20 Ever confirmed|0

[Bug libstdc++/105671] [11/12/13 Regression] Unexplained "undefined reference" error

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105671 Joseph S. Myers changed: What|Removed |Added Summary|Unexplained "undefined |[11/12/13 Regression]

[Bug middle-end/105866] New: [13 Regression] ICE in emit_move_insn building glibc for MIPS

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105866 Bug ID: 105866 Summary: [13 Regression] ICE in emit_move_insn building glibc for MIPS Product: gcc Version: 12.0 Status: UNCONFIRMED Keywords: ice-on-valid-cod

[Bug middle-end/105866] [13 Regression] ICE in emit_move_insn building glibc for MIPS

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105866 Joseph S. Myers changed: What|Removed |Added Version|12.0|13.0 Target Milestone|---

[Bug middle-end/105866] [13 Regression] ICE in emit_move_insn building glibc for MIPS

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105866 Joseph S. Myers changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|---

[Bug lto/106129] New: [12/13 Regression] LTO option merging broken

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106129 Bug ID: 106129 Summary: [12/13 Regression] LTO option merging broken Product: gcc Version: 13.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: lto

[Bug lto/106129] [12 Regression] LTO option merging broken

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106129 Joseph S. Myers changed: What|Removed |Added Last reconfirmed||2022-06-30 Ever confirmed|0

[Bug target/103722] [12 Regression] ICE in extract_constrain_insn building glibc for SH4

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103722 Joseph S. Myers changed: What|Removed |Added Status|NEW |RESOLVED Resolution|---

[Bug c/113455] ROUNDING: IEEE Standard: Missing decimal rounding mode 'nearest, ties away from zero' for decimalxxx datatypes.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113455 --- Comment #6 from Joseph S. Myers --- -frounding-math is only relevant for arithmetic that occurs as-if at runtime in the abstract machine. Conversion of constants to their type (or a type with excess range and precision as indicated by DEC_EV

[Bug c/113776] [14 regression] postgresql-16.1 build failure with -Werror=vla in configure test since r14-8641

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113776 Joseph S. Myers changed: What|Removed |Added Status|UNCONFIRMED |ASSIGNED Assignee|unassigne

[Bug c/113776] [14 regression] postgresql-16.1 build failure with -Werror=vla in configure test since r14-8641

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113776 Joseph S. Myers changed: What|Removed |Added Resolution|--- |FIXED Status|ASSIGNED

[Bug c/113825] missing warning for omitted parameter names in function definitions (c23 extension)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113825 Joseph S. Myers changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|---

[Bug c/113887] no support for %w128 length modifiers

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113887 --- Comment #2 from Joseph S. Myers --- https://gcc.gnu.org/pipermail/gcc-patches/2024-January/643237.html has my notes on things that need supporting, in , and by implication in printf and scanf, to support __int128 as an extended integer type

[Bug c/113887] no support for %w128 length modifiers

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113887 --- Comment #5 from Joseph S. Myers --- Compiler and library are not in practice independent for this issue. GCC typically provides for freestanding compilations and forwards to a libc version for hosted compilations, and in both cases it needs

[Bug c/113887] no support for %w128 length modifiers

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113887 --- Comment #11 from Joseph S. Myers --- As I said in comment#2, I prefer a constant suffix for __int128 to the wb/uwb hack - I think it's cleaner, as well as allowing int128_t to work properly on all the targets that support __int128 but have n

[Bug libstdc++/114018] std::nexttoward is not implemented for C++23-FP-Types

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114018 --- Comment #4 from Joseph S. Myers --- I don't know what's expected for C++, but for C, TS 18661-3 and C23 don't have versions of nexttoward for _FloatN or _FloatNx (recall that the second argument of nexttoward has type long double independent

[Bug libstdc++/113450] [14 Regression] std/format/functions/format.cc FAILs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113450 --- Comment #17 from Joseph S. Myers --- The tests that GCC's internal notion of the types agrees with the headers are in gcc.dg/c99-stdint-5.c and gcc.dg/c99-stdint-6.c.

[Bug preprocessor/114007] gcc chokes on __has_cpp_attribute(clang::unsafe_buffer_usage)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114007 --- Comment #16 from Joseph S. Myers --- I think it's clear that __has_c_attribute(gnu::unused) should only return 1 if the [[gnu::unused]] syntax is actually parsed. (An unavoidable limitation if it might return 1 in pre-C23 modes is that if it

[Bug tree-optimization/111770] predicated loads inactive lane values not modelled

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111770 --- Comment #6 from Joseph S. Myers --- X + 0. -> X is invalid for FP with signed zero or signaling NaN, and also gets the wrong quantum exponent for decimal FP unless the zero has the maximum possible quantum exponent (which is not what you get

[Bug libquadmath/114140] quadmath fminq/fmaxq with signaling_NaN not work

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114140 --- Comment #2 from Joseph S. Myers --- Returning a quiet NaN when either argument is a signaling NaN is correct at least for C (fmin/fmax correspond to IEEE 754-2008 operations, *not* the new IEEE 754-2019 operations which are fminimum/fmaximum

[Bug middle-end/94083] inefficient soft-float x!=Inf code

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94083 --- Comment #6 from Joseph S. Myers --- Contrary to what was claimed in bug 66462, I don't think there ever was a fixed patch. Note that in bug 66462 comment 19, "June" is June 2017 but "November" is November 2016 - the "November" one is the *old

[Bug c/114266] No -pedantic diagnostic for zero-sized array in compound literals

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114266 Joseph S. Myers changed: What|Removed |Added Ever confirmed|0 |1 Status|UNCONFIRMED

[Bug middle-end/114347] wrong constant folding when casting __bf16 to int

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114347 --- Comment #4 from Joseph S. Myers --- I think it's correct that conversions (explicit or implicit) from a value with excess precision convert only once; they don't first remove excess range and precision and then convert to the target type. T

[Bug tree-optimization/114465] "x % const1 % const2" should be optimized if const1 % const2 == 0

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114465 --- Comment #1 from Joseph S. Myers --- Note that transforming x % 1 % -1 to x % -1 wouldn't strictly be valid (because of undefined behavior from INT_MIN % -1), though hopefully cases with constant 1 or -1 get optimized to 0 anyway and the unde

[Bug tree-optimization/114469] gcc.dg/torture/bitint-64.c failure with -O2 -flto -std=c23 -fwrapv

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114469 --- Comment #1 from Joseph S. Myers --- I'd expect _Atomic _BitInt(5) to follow the same ABI (regarding upper bits being defined or not) as plain _BitInt(5), and any simplification needs to deal with that. (In principle for atomics with _BitInt

[Bug c/112571] [13 Regression] ICE with nested redefinition of enum

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112571 Joseph S. Myers changed: What|Removed |Added Resolution|--- |FIXED Status|ASSIGNED

[Bug c/114526] ISO C does not prohibit extensions: fix misconception.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114526 --- Comment #5 from Joseph S. Myers --- The -pedantic documentation was updated to reflect reality - that the option is about more than just when diagnostics are required by ISO C ("forbidden extensions" can be taken, in the C case, as meaning t

[Bug c/114526] ISO C does not prohibit extensions: fix misconception.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114526 --- Comment #8 from Joseph S. Myers --- "rejects", in the ISO C sense, only applies to errors and pedwarns in GCC; not to warnings conditional on -pedantic (of which there are also some, but which don't turn into errors with -pedantic). If you

[Bug libquadmath/114533] libquadmath: printf: fix misaligned access on args

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114533 --- Comment #7 from Joseph S. Myers --- Note also that in glibc, _Float128 support in printf code can only be used in limited circumstances: either on powerpc64le, as one of the multiple supported long double formats there, or through the sharin

[Bug c/114526] ISO C does not prohibit extensions: fix misconception.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114526 --- Comment #11 from Joseph S. Myers --- I think that simply failing to say whether a value of type X may be converted to type Y is clearly enough for it at least to be unspecified whether or when such conversions are possible in a cast at all (

[Bug c/114526] ISO C does not prohibit extensions: fix misconception.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114526 --- Comment #15 from Joseph S. Myers --- There are several statements such as "Any pointer type may be converted to an integer type." and "A pointer to an object type may be converted to a pointer to a different object type.", that allow certain

[Bug c/65213] Extend -Wmissing-declarations to variables [i.e. add -Wmissing-variable-declarations]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65213 Joseph S. Myers changed: What|Removed |Added Resolution|--- |FIXED Status|NEW

[Bug middle-end/87403] [Meta-bug] Issues that suggest a new warning

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87403 Bug 87403 depends on bug 65213, which changed state. Bug 65213 Summary: Extend -Wmissing-declarations to variables [i.e. add -Wmissing-variable-declarations] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65213 What|Removed

[Bug c/110664] -std=c2x -pedantic-errors pedwarns on _Float128

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110664 Joseph S. Myers changed: What|Removed |Added Target Milestone|--- |14.0 Resolution|---

[Bug c/116130] Implement C23 N2956 paper - [[unsequenced]] and [[reproducible]] function type arguments

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116130 --- Comment #12 from Joseph S. Myers --- N3096 is a very old draft with lots of mistakes. Use N3220 instead (it has no technical changes relative to C23, though it's also missing many late editorial fixes required by ISO). Composite types for c

[Bug rtl-optimization/116199] New: [15 Regression] reload ICE building glibc for m68k

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116199 Bug ID: 116199 Summary: [15 Regression] reload ICE building glibc for m68k Product: gcc Version: 15.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal

[Bug rtl-optimization/116244] New: [15 Regression] reload ICE building libstdc++ for coldfire

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116244 Bug ID: 116244 Summary: [15 Regression] reload ICE building libstdc++ for coldfire Product: gcc Version: 15.0 Status: UNCONFIRMED Keywords: ice-on-valid-code

[Bug c/108796] Can't intermix C2x and GNU style attributes

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108796 --- Comment #13 from Joseph S. Myers --- Everything available with __attribute__ is also available with [[]]; __attribute__((foo)) is [[gnu::foo]]. You *do* need to ensure that the [[gnu::foo]] is placed in the right syntactic position for the e

[Bug c/108796] Can't intermix C2x and GNU style attributes

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108796 --- Comment #15 from Joseph S. Myers --- The [[]] syntax is supported in C from GCC 10 onwards (in C++ in older versions as well). What's new in GCC 14 is that you can use it with :: in pre-C23 modes (with previous versions you needed -std=gnu2x

[Bug tree-optimization/112358] [14/15 Regression] glibc -Wstringop-overflow= build failure on hppa since r14-4089-gd45ddc2c04e471

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112358 --- Comment #8 from Joseph S. Myers --- If it's a false positive, it's reasonable to work around in glibc using the libc-diag.h macros (DIAG_PUSH_NEEDS_COMMENT / DIAG_IGNORE_NEEDS_COMMENT / DIAG_POP_NEEDS_COMMENT) - but that would need an approp

[Bug c/116631] [gcc] c23 - 'auto' struggles with comma expression type inference.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116631 --- Comment #2 from Joseph S. Myers --- The specification for underspecified declarations (auto and constexpr) says "if anywhere within the sequence of tokens making up the declaration identifiers that are not ordinary are declared, the behavior

[Bug c/46073] __builtin_choose_expr outputs warnings for unused expression

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=46073 --- Comment #5 from Joseph S. Myers --- It's doubtful that this is a bug. You could define __builtin_choose_expr so the unselected operand only needs to be a balanced token sequence (with no commas unless nested inside () [] {}), but it's less cl

[Bug c/114657] Invalid type conversion from some _BitInt bit-fields

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114657 --- Comment #3 from Joseph S. Myers --- https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2958.htm has my analysis of the various notions of "type" used in relation to bit-fields and the questions of what expressions are considered to have speci

[Bug c/114730] should enum types be vector types?

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114730 --- Comment #3 from Joseph S. Myers --- When implementing C23 enums with fixed underlying types I tried to ensure that enums with underlying type bool were handled consistently with bool (cf. bug 96496 where they're not always handled consistent

[Bug c/114746] With FLT_EVAL_METHOD = 2, -fexcess-precision=fast reduces the precision of floating-point constants and floating-point constant expressions

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114746 --- Comment #3 from Joseph S. Myers --- The actual effect of -fexcess-precision=fast is more like "outside the back end, pretend excess precision doesn't exist, but the back end might use it anyway" (complicated a bit by having genuine excess pr

[Bug c/114808] Qualified void return type is not diagnosed

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114808 --- Comment #7 from Joseph S. Myers --- Yes, this is deliberate following the resolution of DR#423 which means qualifiers are ignored on function return types (it's still diagnosed in pre-C11 modes).

[Bug c/114816] Non-standard behavior with void arguments

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114816 --- Comment #1 from Joseph S. Myers --- Note that it's not possible to define a function with such parameters ("After adjustment, the parameters in a parameter type list in a function declarator that is part of a definition of that function shal

[Bug c/114869] GCC says nullptr_t is a C built in but it should be in

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114869 Joseph S. Myers changed: What|Removed |Added Last reconfirmed||2024-04-29 CC|

  1   2   3   >