[Bug target/89954] missed optimization for signed extension for x86-64

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89954 Andrew Pinski changed: What|Removed |Added Severity|normal |enhancement --- Comment #3 from Andrew P

[Bug middle-end/102206] New: amd zen hosts running zen-optimized gcc: gimplification ICE after 94e24187

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102206 Bug ID: 102206 Summary: amd zen hosts running zen-optimized gcc: gimplification ICE after 94e24187 Product: gcc Version: 10.1.0 Status: UNCONFIRMED Severity: n

[Bug tree-optimization/84794] memcpy/memmove between a struct and its first member not eliminated

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84794 Andrew Pinski changed: What|Removed |Added Keywords||TREE Last reconfirmed|2018-03-12 00:00

[Bug middle-end/87595] __tls_get_addr should be __attribute__((__noplt__))

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87595 Andrew Pinski changed: What|Removed |Added See Also||https://gcc.gnu.org/bugzill

[Bug target/68211] Free __m128d subreg of double

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68211 Andrew Pinski changed: What|Removed |Added Severity|normal |enhancement --- Comment #9 from Andrew P

[Bug tree-optimization/81772] Compile-time snprintf optimization

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81772 Andrew Pinski changed: What|Removed |Added Severity|normal |enhancement

[Bug tree-optimization/90768] better range analysis for converting bit tests into less-than greater-than

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90768 Andrew Pinski changed: What|Removed |Added Severity|normal |enhancement --- Comment #6 from Andrew P

[Bug tree-optimization/90625] fold strcmp(a, b) == 0 to zero for strings of unequal but non-const lengths

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90625 Andrew Pinski changed: What|Removed |Added Severity|normal |enhancement Last reconfirmed|2019-05-2

[Bug middle-end/90408] >= -O2 suddenly generates code

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90408 Andrew Pinski changed: What|Removed |Added See Also||https://gcc.gnu.org/bugzill

[Bug tree-optimization/102207] New: [12 Regression] wrong code with __builtin_sub_overflow() at -O1 and above with uint128

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102207 Bug ID: 102207 Summary: [12 Regression] wrong code with __builtin_sub_overflow() at -O1 and above with uint128 Product: gcc Version: 12.0 Status: UNCONFIRMED K

[Bug tree-optimization/102207] [12 Regression] wrong code with __builtin_sub_overflow() at -O1 and above with uint128

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102207 Jakub Jelinek changed: What|Removed |Added Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org Eve

[Bug tree-optimization/102207] [12 Regression] wrong code with __builtin_sub_overflow() at -O1 and above with uint128

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102207 --- Comment #2 from Jakub Jelinek --- Created attachment 51409 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51409&action=edit gcc12-pr102207.patch Untested fix.

[Bug demangler/102130] [c++filt] Stack overflow in demangle_path

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102130 Alan Modra changed: What|Removed |Added Status|RESOLVED|REOPENED Last reconfirmed|

[Bug demangler/102132] [nm] Stack overflow in demangler_path

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102132 Alan Modra changed: What|Removed |Added Status|UNCONFIRMED |NEW CC|

[Bug c++/94501] arrays are not decaying to pointers in variadic function template for conversion to a function pointer

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94501 qingzhe huang changed: What|Removed |Added CC||nickhuang99 at hotmail dot com --- Comme

[Bug middle-end/90408] >= -O2 suddenly generates code

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90408 --- Comment #3 from Oliver Stoeneberg --- Thanks - I checked with godbolt and it looks fine for -O1 and -O2 now. -Os on trunk generates an additional instruction compared to previous versions xor eax, eax

[Bug c++/102208] New: Acceptance of invalid decltype(auto) in the default operator <=>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102208 Bug ID: 102208 Summary: Acceptance of invalid decltype(auto) in the default operator <=> Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal

[Bug middle-end/90408] >= -O2 suddenly generates code

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90408 Andrew Pinski changed: What|Removed |Added Target Milestone|--- |10.3 Resolution|---

[Bug middle-end/90408] >= -O2 suddenly generates code

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90408 --- Comment #5 from Oliver Stoeneberg --- Alright. Just wanted to make sure it's intentional since it just happened on trunk.

[Bug ipa/57218] [9/10/11/12 Regression] Excessive inlining even at -Os

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57218 Andrew Pinski changed: What|Removed |Added Keywords||missed-optimization Last reconfirmed|2

[Bug ipa/80277] ipa-icf overlooking functions with identical assemble and semantics

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80277 Andrew Pinski changed: What|Removed |Added Severity|normal |enhancement Target Milestone|9.5

[Bug ipa/94762] [9/10/11/12 Regression] ICE: Segmentation fault (in is_tm_irrevocable) since r7-1710-g849a76a5a20db383

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94762 --- Comment #4 from Andrew Pinski --- trans-mem.c does not handle any internal functions.

[Bug ipa/95859] [10/11/12 regression] Statically true asserts not recognized as such with -O2, but with -O1, -Og, -O3

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95859 Andrew Pinski changed: What|Removed |Added Status|NEW |RESOLVED Target Milestone|10.4

[Bug ipa/98265] [10 Regression] gcc-10 has significantly worse code generated with -O2 compared to -O1 (or gcc-9 -O2) when using the Eigen C++ library

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98265 Andrew Pinski changed: What|Removed |Added CC||tobi at gcc dot gnu.org --- Comment #13

[Bug tree-optimization/102200] [12 Regression] ice in put_ref, at pointer-query.cc:1351 since r12-3300-gece28da924ddda8b

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102200 Martin Liška changed: What|Removed |Added CC||marxin at gcc dot gnu.org,

[Bug c/29970] mixing ({...}) with VLA leads to massive breakage

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=29970 --- Comment #14 from Martin Uecker --- Another version of the patch: https://gcc.gnu.org/pipermail/gcc-patches/2021-September/578844.html

[Bug c/91038] ICE with VLA type and statement expression (gimplify_var_or_parm_decl)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91038 --- Comment #3 from Martin Uecker --- PATCH: https://gcc.gnu.org/pipermail/gcc-patches/2021-September/578844.html

[Bug c++/102209] New: NRVO for function parameters

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102209 Bug ID: 102209 Summary: NRVO for function parameters Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assig

[Bug fortran/100950] ICE in output_constructor_regular_field, at varasm.c:5514

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100950 --- Comment #15 from CVS Commits --- The releases/gcc-11 branch has been updated by Harald Anlauf : https://gcc.gnu.org/g:c94755c7734c6aac9e114fb69ca23aed524e2450 commit r11-8961-gc94755c7734c6aac9e114fb69ca23aed524e2450 Author: Harald Anlauf

[Bug fortran/100950] ICE in output_constructor_regular_field, at varasm.c:5514

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100950 --- Comment #16 from CVS Commits --- The releases/gcc-11 branch has been updated by Harald Anlauf : https://gcc.gnu.org/g:71013e5fb844cab1865a65373fdc32aa5b87a525 commit r11-8962-g71013e5fb844cab1865a65373fdc32aa5b87a525 Author: Harald Anlauf

[Bug fortran/100950] ICE in output_constructor_regular_field, at varasm.c:5514

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100950 anlauf at gcc dot gnu.org changed: What|Removed |Added Resolution|--- |FIXED Status|ASS

[Bug middle-end/100702] Strict overflow warning regression in gcc 8 onwards

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100702 --- Comment #4 from Andrew Pinski --- gcc.dg/Wstrict-overflow-7.c is the testcase for this.

[Bug middle-end/100702] Strict overflow warning regression in gcc 8 onwards

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100702 Andrew Pinski changed: What|Removed |Added Resolution|--- |DUPLICATE Status|NEW

[Bug tree-optimization/80511] [9/10/11/12 Regression] gcc.dg/Wstrict-overflow-18.c gcc.dg/Wstrict-overflow-7.c gcc.dg/pragma-diag-3.c

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80511 Andrew Pinski changed: What|Removed |Added CC||david at westcontrol dot com --- Comment

[Bug c/102210] New: Invalid assembly generated while building OpenSSH on hppa64-hp-hpux11.23

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102210 Bug ID: 102210 Summary: Invalid assembly generated while building OpenSSH on hppa64-hp-hpux11.23 Product: gcc Version: 11.1.0 Status: UNCONFIRMED Severity: nor

[Bug middle-end/46555] [9/10/11/12 Regression] PHI RTL expansion leads to CSiBE regression

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=46555 Andrew Pinski changed: What|Removed |Added Last reconfirmed|2016-01-05 00:00:00 |2021-9-5 --- Comment #14 from Andrew Pin

[Bug middle-end/63184] [9/10/11/12 Regression] Fails to simplify comparison

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63184 Andrew Pinski changed: What|Removed |Added Assignee|rguenth at gcc dot gnu.org |pinskia at gcc dot gnu.org --- C

[Bug tree-optimization/59660] We fail to optimize common boolean checks pre-inlining

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59660 --- Comment #13 from Andrew Pinski --- This has been fixed at r12-2039-gcd48e550d1dc583, if we use the C++ front-end. Using the C front-end we still have a casting issue.

[Bug middle-end/63184] [9/10/11/12 Regression] Fails to simplify comparison

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63184 --- Comment #27 from Andrew Pinski --- Created attachment 51411 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51411&action=edit patch which I am testing

[Bug bootstrap/89140] libiberty/pex-unix.c fails to compile in aarch64-to-x86_64 cross build

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89140 Brett Neumeier changed: What|Removed |Added Resolution|--- |FIXED Status|UNCONFIRMED

[Bug tree-optimization/84794] memcpy/memmove between a struct and its first member not eliminated

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84794 --- Comment #5 from Andrew Pinski --- One simple way of doing this is seeing if ptr_difference_const returns true and the difference is 0. I have not checked if this works but it just might.

[Bug target/102211] New: ICE introduced by r12-3277

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102211 Bug ID: 102211 Summary: ICE introduced by r12-3277 Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assi

[Bug middle-end/102206] amd zen hosts running zen-optimized gcc: gimplification ICE after 94e24187

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102206 --- Comment #1 from Greg Turner --- (In reply to Greg Turner from comment #0) > this bug report will be long and confusing tldr: as of 94e24187 host-optimized gcc exhibits ICEs while building complex C++ projects on AMD zen hosts. The problem

[Bug target/102211] ICE introduced by r12-3277

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102211 --- Comment #1 from Hongtao.liu --- But it's ok for float foo (float a, long b) { union{float a[2]; long b;}c; c.b = b; return c.a[0]; } foo: fmv.w.x fa0,a0 ret Which means movement between gpr and float reg is allo

[Bug target/102211] ICE introduced by r12-3277

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102211 --- Comment #2 from Hongtao.liu --- According to *movsi_internal and *movdi_64bit, SImode, and DImode can be placed into FP_REGS, but in riscv_hard_regno_mode_ok, SImode/DImode is not allowed to be allocated as FP_REGS, the mismatch here caues t

[Bug target/88473] AVX512: constant folding on mask does not remove unnecessary instructions

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88473 --- Comment #8 from Hongtao.liu --- (In reply to Andrew Pinski from comment #7) > The UNSPEC_MASKOP ones are still there. > > PR 93885 is the same issue. void test(void* data, void* data2) { __m128i v = _mm_load_si128((__m128i const*)data);

[Bug target/88473] AVX512: constant folding on mask does not remove unnecessary instructions

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88473 --- Comment #9 from Hongtao.liu --- (In reply to Hongtao.liu from comment #8) > (In reply to Andrew Pinski from comment #7) > > The UNSPEC_MASKOP ones are still there. > > > > PR 93885 is the same issue. > > void test(void* data, void* data2) >

[Bug middle-end/63184] [9/10/11/12 Regression] Fails to simplify comparison

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63184 Andrew Pinski changed: What|Removed |Added Keywords||patch URL|

[Bug target/82139] unnecessary movapd with _mm_castsi128_pd to use BLENDPD on __m128i results

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82139 --- Comment #2 from Hongtao.liu --- (In reply to Andrew Pinski from comment #1) > It is worse on the trunk: > .L2: > movdqu (%rdi), %xmm1 > movdqu (%rdi), %xmm0 > addq$16, %rdi > paddd %xmm3, %xmm1 >

[Bug other/1634] Request for gcc-cvs-patches list

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=1634 --- Comment #13 from Andrew Pinski --- When we moved to git, gcc-cvs has become what this bug has requested. In that it sends the exact patch which was committed to the list now. An example is https://gcc.gnu.org/pipermail/gcc-cvs/2021-September/

[Bug c++/99] Bug in template type in error message.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99 Andrew Pinski changed: What|Removed |Added Last reconfirmed|2010-06-05 23:38:41 |2021-9-5 --- Comment #23 from Andrew Pinski

[Bug driver/2252] If 'as' crashes gcc points you to the gcc bug site

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=2252 Andrew Pinski changed: What|Removed |Added Known to fail|| Last reconfirmed|2005-12-31 20:30:04

[Bug bootstrap/4284] gcc-lib directory not configurable thru configure

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=4284 --- Comment #3 from Andrew Pinski --- # Directory in which the compiler finds libraries etc. libsubdir = $(libdir)/gcc/$(real_target_noncanonical)/$(version)$(accel_dir_suffix) # Directory in which the compiler finds executables libexecsubdir = $(

[Bug c++/102212] New: The explicit conversion function should be permitted in direct-initialization of a reference

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102212 Bug ID: 102212 Summary: The explicit conversion function should be permitted in direct-initialization of a reference Product: gcc Version: 12.0 Status: UNCONFIRMED

[Bug tree-optimization/102178] SPECFP 2006 470.lbm regressions on AMD Zen CPUs after r12-897-gde56f95afaaa22

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102178 --- Comment #1 from Richard Biener --- Maybe related to PR102008, see the comment I made there. Martin, maybe you can try moving late sink to before the last phiopt pass.

[Bug tree-optimization/102178] [12 Regression] SPECFP 2006 470.lbm regressions on AMD Zen CPUs after r12-897-gde56f95afaaa22

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102178 Richard Biener changed: What|Removed |Added Version|11.0|12.0 Summary|SPECFP 2006 47

[Bug debug/7853] gcc reports multiple symbol definitions on the wrong line

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=7853 Andrew Pinski changed: What|Removed |Added Known to work||7.5.0 --- Comment #20 from Andrew Pinski

[Bug tree-optimization/10980] vararg functions are not inlined

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=10980 --- Comment #14 from Andrew Pinski --- We have __builtin_va_arg_pack and __builtin_va_arg_pack_len which I think solves this problem really. https://gcc.gnu.org/onlinedocs/gcc-11.2.0/gcc/Constructing-Calls.html#index-_005f_005fbuiltin_005fva_00

[Bug middle-end/102206] amd zen hosts running zen-optimized gcc: gimplification ICE after r10-7284

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102206 Martin Liška changed: What|Removed |Added Ever confirmed|0 |1 CC|

[Bug tree-optimization/102176] BB SLP scalar costing is off with extern promoted nodes

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102176 --- Comment #3 from CVS Commits --- The master branch has been updated by Richard Biener : https://gcc.gnu.org/g:a3fb781d4b341c0d50ef1b92cd3e8734e673ef18 commit r12-3362-ga3fb781d4b341c0d50ef1b92cd3e8734e673ef18 Author: Richard Biener Date:

[Bug tree-optimization/102176] BB SLP scalar costing is off with extern promoted nodes

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102176 Richard Biener changed: What|Removed |Added Known to work||12.0 --- Comment #4 from Richard Biene

[Bug driver/13071] no easy way to exclude backward C++ headers from include path

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=13071 --- Comment #7 from Andrew Pinski --- Isn't doing the extern "C" around standard C++ headers declared by the C++ standard as undefined behavior?