[Bug target/93082] macOS Authorization.h needs fixinclude

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93082 --- Comment #4 from mcccs at gmx dot com --- (In reply to Fabian Groffen from comment #3) > The problem with this snippet is that it doesn't work on Frameworks, does > it? At least for me, it seems it searches from usr/include only? I'm not sure

[Bug tree-optimization/86604] phiopt missed optimization of conditional add

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86604 mcccs at gmx dot com changed: What|Removed |Added Resolution|--- |DUPLICATE Status|NEW

[Bug tree-optimization/103216] missed optimization, phiopt/vrp?

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103216 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug target/119626] On aarch64, use the bfcvt instruction to cast to __bf16 when target supports it

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119626 --- Comment #6 from mcccs at gmx dot com --- Lastly I would like to mention why this is such an important issue in the use __bf16 and why __bf16 is otherwise very inefficient: bfcvt is not only used for casts. Consider the following code: __bf16

[Bug target/119626] On aarch64, use the bfcvt instruction to cast to __bf16 when target supports it

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119626 --- Comment #5 from mcccs at gmx dot com --- Sorry for another ping. I did some more research and to make it easier for you to confirm this issue, we can confirm the expected behavior with clang: Clang behavior -march=armv9-a+bf16 -O3: void co

[Bug target/119626] On aarch64, use the bfcvt instruction to cast to __bf16 when target supports it

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119626 --- Comment #7 from mcccs at gmx dot com --- Today Microsoft Copilot wrongly quoted what I earlier said (bots are reading these threads), so I need to fix my mistake for anyone reading this thread: If you want to allow the compiler to use the bf

[Bug target/119678] New: FreeBSD RISC-V broken due to single-char typo in macro FBSD_LINK_PG_NOTES

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119678 Bug ID: 119678 Summary: FreeBSD RISC-V broken due to single-char typo in macro FBSD_LINK_PG_NOTES Product: gcc Version: 15.0 Status: UNCONFIRMED Severity: norm

[Bug tree-optimization/119706] [15 regression] ICE in gimple pass 'dom' for -O3 -mcpu=grace --param=aarch64-autovec-preference=sve-only

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119706 --- Comment #4 from mcccs at gmx dot com --- Created attachment 61059 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61059&action=edit This is a reduced testcase, but modified in a way that it gives an error in VRP stage instead of DOM Whi

[Bug tree-optimization/119706] [15 regression] ICE in gimple pass 'dom' for -O3 -mcpu=grace --param=aarch64-autovec-preference=sve-only

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119706 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug tree-optimization/86136] Modular multiplication optimization

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86136 mcccs at gmx dot com changed: What|Removed |Added Resolution|--- |WONTFIX Status|NEW

[Bug bootstrap/119663] Can't build GCC on aarch64-apple-darwin24.3.0

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119663 --- Comment #1 from mcccs at gmx dot com --- version: trunk

[Bug target/119663] Can't build GCC on aarch64-apple-darwin24.3.0

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119663 --- Comment #2 from mcccs at gmx dot com --- Right, latest macOS 15.4 which is darwin24.4.0 neither works

[Bug bootstrap/119663] New: Can't build GCC on aarch64-apple-darwin24.3.0

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119663 Bug ID: 119663 Summary: Can't build GCC on aarch64-apple-darwin24.3.0 Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component:

[Bug target/119663] Can't build GCC on aarch64-apple-darwin24.3.0

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119663 --- Comment #3 from mcccs at gmx dot com --- *typo: configure does succeed, it is from `make` that: *** Configuration aarch64-apple-darwin24.4.0 not supported

[Bug other/119729] New: GCC does not issue a warning for in-tree building

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119729 Bug ID: 119729 Summary: GCC does not issue a warning for in-tree building Product: gcc Version: 15.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component

[Bug bootstrap/119729] configure should issue a warning about building in the src tree

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119729 --- Comment #3 from mcccs at gmx dot com --- > If it is refusing ./configure, why not. When doing ./configure a very ugly bug today in `configure` didn't allow me to compile, we can just forbid this. So if you agree I'll edit the title from "wa

[Bug tree-optimization/119683] [13/14/15 Regression] recalculating the return value which was already in the register right before function return

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119683 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug c/119877] New: [12/13/14/15/16 Regression] Honor __attribute__((unused)) and don't issue a warning -Wunused-function

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119877 Bug ID: 119877 Summary: [12/13/14/15/16 Regression] Honor __attribute__((unused)) and don't issue a warning -Wunused-function Product: gcc Version: 15.0

[Bug tree-optimization/119872] [15/16 regression] wrong code at -O{1,2,s}

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119872 mcccs at gmx dot com changed: What|Removed |Added Attachment #61163|0 |1 is obsolete|

[Bug tree-optimization/119872] [15/16 regression] wrong code at -O{1,2,s}

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119872 --- Comment #3 from mcccs at gmx dot com --- Created attachment 61163 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61163&action=edit cleaned up I cleaned up the testcase, without changing the arithmetic, so it passes with 14.2 -O3 and tr

[Bug rtl-optimization/116479] [15/16 Regression] wrong code with -O -funroll-loops -finline-stringops -fmodulo-sched --param=max-iterations-computation-cost=637924876 on aarch64

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116479 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug ipa/115767] [12/13/14/15/16 regression] GCC loses track of value on aarch64 with -O2 since r11-3308-gd119f34c952f87

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115767 --- Comment #34 from mcccs at gmx dot com --- Thanks Andrew for the reply. In that case, the issue is probably invalid because checkpoint4.cpp also has several reinterpret_casts casting to things involving templates. Too bad, LLVM's -fsanitize=un

[Bug tree-optimization/119592] [12/13/14/15/16 Regression] false positive array bounds warning with set>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119592 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug ipa/115767] [12/13/14/15/16 regression] GCC loses track of value on aarch64 with -O2 since r11-3308-gd119f34c952f87

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115767 mcccs at gmx dot com changed: What|Removed |Added Attachment #61145|0 |1 is obsolete|

[Bug ipa/115767] [12/13/14/15/16 regression] GCC loses track of value on aarch64 with -O2 since r11-3308-gd119f34c952f87

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115767 --- Comment #31 from mcccs at gmx dot com --- Created attachment 61160 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61160&action=edit minimized.cpp GCC -O1 -fstrict-aliasing or -O2 or -O3: aborts I've attached the minimized human-readab

[Bug ipa/115767] [12/13/14/15/16 regression] GCC loses track of value on aarch64 with -O2 since r11-3308-gd119f34c952f87

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115767 --- Comment #32 from mcccs at gmx dot com --- Oh no I'm so sorry all! I tried to set the previous attachment obsolete unfortunately it quoted all of it and posted here! Sorry for the tall thread

[Bug tree-optimization/119872] [15/16 regression] wrong code at -O{1,2,s}

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119872 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug c++/119954] "a < b < c < d < ..." taking long time to process to generate error message

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119954 --- Comment #2 from mcccs at gmx dot com --- Created attachment 61219 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61219&action=edit testcase that should be run with -std=c++20 or above.cpp Uploaded testcase

[Bug c++/119916] [15/16 Regression] folly (2025.04.14.00 and earlier): coroutine tests fail with GCC 15

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119916 --- Comment #6 from mcccs at gmx dot com --- Created attachment 61203 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61203&action=edit preprocessed.cpp.xz The preprocessed source

[Bug tree-optimization/119959] [15/16 regression] simple loop miscompiled into an endless loop

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119959 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug c++/119916] [15/16 Regression] folly (2025.04.14.00 and earlier): coroutine tests fail with GCC 15

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119916 --- Comment #8 from mcccs at gmx dot com --- bisect bad commit: r15-3153-g68ee624bc52ba1 reduce is running, we can't know if the fault is in a commit or in the source for now

[Bug tree-optimization/119959] [15/16 regression] simple loop miscompiled into an endless loop since r15-580-gf3e5f4c58591f5

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119959 --- Comment #9 from mcccs at gmx dot com --- Also to make sure my bisections are correct, after running the script automatically, I manually checkout to the bad commit and its parent and compare them. My previously pasted commit was my previous

[Bug tree-optimization/119959] [15/16 regression] simple loop miscompiled into an endless loop

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119959 --- Comment #5 from mcccs at gmx dot com --- Bisection points at r15-988-g5316c35b13cf53 also target aarch64 as well .L8: add x19, x19, 8 cmp x20, x19 beq .L16 versus .L7: add x19, x19, 8

[Bug tree-optimization/119959] [15/16 regression] simple loop miscompiled into an endless loop

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119959 --- Comment #7 from mcccs at gmx dot com --- Sorry right that's the parent commit! I pasted the wrong hash. Bisection says r15-580-gf3e5f4c58591f5

[Bug tree-optimization/112307] Segmentation fault with -O1 -fcode-hoisting

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112307 --- Comment #14 from mcccs at gmx dot com --- Created attachment 61179 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61179&action=edit reduced.cpp I think this reduction is valid. Fails with -O1 -fcode-hoisting, doesn't fail with -O0 or -

[Bug tree-optimization/112307] Segmentation fault with -O1 -fcode-hoisting

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112307 --- Comment #15 from mcccs at gmx dot com --- Thanks Jonathan for -x c++, it was just what GCC on my system needed

[Bug tree-optimization/120035] New: Loops are not optimized when "unsigned i" is used

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120035 Bug ID: 120035 Summary: Loops are not optimized when "unsigned i" is used Product: gcc Version: 16.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component

[Bug tree-optimization/120003] [12/13/14/15/16 Regression] missed optimization around a loop with a checker

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120003 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug tree-optimization/119778] [13/14/15 regression] -Wuninitialized crashed with longjmp/setjmp

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119778 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug other/105404] Update in-tree copy of zlib to zlib-1.3.1

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105404 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug ipa/115767] [12/13/14/15 regression] GCC loses track of value on aarch64 with -O2 since r11-3308-gd119f34c952f87

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115767 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug ipa/115767] [12/13/14/15 regression] GCC loses track of value on aarch64 with -O2 since r11-3308-gd119f34c952f87

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115767 --- Comment #27 from mcccs at gmx dot com --- *sorry I meant 60k bytes not lines

[Bug bootstrap/119729] configure should issue a warning about building in the src tree

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119729 --- Comment #4 from mcccs at gmx dot com --- Suggested patch: +if test $srcdir = . ; then + AC_MSG_ERROR([building in the top level project directory is not supported. Please change the current directory to a new directory (can be a new subdire

[Bug middle-end/110282] Segmentation fault with specific optimizations

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110282 --- Comment #10 from mcccs at gmx dot com --- Bad commit: https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=ff6686d2e5f797d6c6a36ad14a7084bc1dc350e4 Minimal testcase: int a[]; short b, c; long d; __attribute__((noipa)) long(e)() {} static int f(in

[Bug middle-end/110282] Segmentation fault with specific optimizations

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110282 --- Comment #12 from mcccs at gmx dot com --- Thanks Sam, I'm restarting reduction this time checking if it compiles with trunk GCC as well

[Bug middle-end/110282] Segmentation fault with specific optimizations

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110282 --- Comment #14 from mcccs at gmx dot com --- Minimized testcase: int a[], d[]; long b, c, e, g; int f, h, i; short j, k, l; int *m = a; static int *n(int *o) { int p = l == *o | k <= j; p = *d; h = c; g = 0 == e; f = *m; b = 0; re

[Bug ipa/115767] [12/13/14/15 regression] GCC loses track of value on aarch64 with -O2 since r11-3308-gd119f34c952f87

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115767 --- Comment #28 from mcccs at gmx dot com --- Created attachment 61145 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61145&action=edit 27k bytes reduced testcase further reduced with c-reduce. verified with various LLVM fsanitize's

[Bug ipa/115767] [12/13/14/15 regression] GCC loses track of value on aarch64 with -O2 since r11-3308-gd119f34c952f87

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115767 --- Comment #29 from mcccs at gmx dot com --- fails with even -O1 -fstrict-aliasing -fcode-hoisting

[Bug tree-optimization/120089] [15/16 regression] GCC miscompiles VK-GL-CTS (on aarch64) with -O3 since r15-7533-g589d79e6268b05

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120089 mcccs at gmx dot com changed: What|Removed |Added Attachment #61295|0 |1 is obsolete|

[Bug tree-optimization/120089] [15/16 regression] GCC miscompiles VK-GL-CTS (on aarch64) with -O3 since r15-7533-g589d79e6268b05

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120089 --- Comment #23 from mcccs at gmx dot com --- I dumped all optimization trees before and after the bad commit, the divergence starts with "vect", where the bad tree output is three times as long.

[Bug c++/117042] [12/13/14/15/16 Regression] internal compiler error: Segmentation fault in tsubst(tree_node*, tree_node*, int, tree_node*)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117042 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug c++/120123] [12/13/14/15 Regression] Implicit this is not used in a requires clause in nested lambdas

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120123 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug target/120119] [15/16 Regression] GCC 15.1.0 ICEs (segfaults) compiling VK-GL-CTS on aarch64/musl target

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120119 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug c++/120129] Internal Compiler Error (ICE) with decltype(auto) and nested initializer list

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120129 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug target/118100] [14/15/16 Regression] Segment Fault by rvv intrinsic compilation at `-O2` and `-O3`.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118100 --- Comment #2 from mcccs at gmx dot com --- I meant spike --isa=rv64gcv_zvfh pk a.out

[Bug middle-end/120093] [16 Regression] FAIL: gcc.dg/vect/pr101145.c

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120093 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug middle-end/120052] [13/14/15/16 Regression] VLA with OpenMP vs -fsanitize=undefined

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120052 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug ipa/120048] [16 Regression] ICE on valid code at -O{s,2} with "-fno-tree-vrp -fno-tree-fre" on x86_64-linux-gnu: in type, at value-range.h:982

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120048 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug tree-optimization/120080] [16 regression] ICE when building llvm-20.1.3 (find_bit_tests, at tree-switch-conversion.cc:1799) since r16-347-g1381a5114788a2

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120080 --- Comment #8 from mcccs at gmx dot com --- Since r16-372-g064cac730f88dc Andrew's reduction does not cause an error on my computer. I haven't checked the original file after this revision

[Bug tree-optimization/120080] [16 regression] ICE when building llvm-20.1.3 (find_bit_tests, at tree-switch-conversion.cc:1799) since r16-347-g1381a5114788a2

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120080 --- Comment #9 from mcccs at gmx dot com --- Created attachment 61324 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61324&action=edit improved reduction.c Andrew's reduction modified for reproducing on latest trunk, fortunately not much h

[Bug target/120119] [15/16 Regression] GCC 15.1.0 ICEs (segfaults) compiling VK-GL-CTS on aarch64/musl target

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120119 --- Comment #4 from mcccs at gmx dot com --- Bisect bad commit: r15-5422-g279475fd7236a9

[Bug c++/120129] Internal Compiler Error (ICE) with decltype(auto) and nested initializer list

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120129 --- Comment #2 from mcccs at gmx dot com --- Bisection-found commit: r12-6008-g06d5dcef72542b Reducing

[Bug c++/120129] Internal Compiler Error (ICE) with decltype(auto) and nested initializer list since r12-6008-g06d5dcef72542b

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120129 --- Comment #5 from mcccs at gmx dot com --- Created attachment 61339 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61339&action=edit reduced.cpp

[Bug c++/120133] internal compiler error: Segmentation fault signal terminated program cc1plus

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120133 --- Comment #2 from mcccs at gmx dot com --- bisecting

[Bug c++/118526] infinite compile time

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118526 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug c++/120133] internal compiler error: Segmentation fault signal terminated program cc1plus

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120133 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug c++/120133] internal compiler error: Segmentation fault signal terminated program cc1plus

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120133 --- Comment #3 from mcccs at gmx dot com --- bisect bad commit: r9-6542-gf869f40780836d

[Bug c++/120125] [15/16 Regression] ICE in add_to_same_comdat_group when using -Os or -fdeclone-ctor-dtor

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120125 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug bootstrap/119729] configure should issue a warning about building in the src tree

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119729 --- Comment #6 from mcccs at gmx dot com --- I haven't been given a sourceware account, I can't file a bug on sourceware. Maybe we can do it for GCC only and if they agree with it in the future they can change it: Updated patch: +if test $srcdi

[Bug middle-end/110282] Segmentation fault with specific optimizations

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110282 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug middle-end/110282] Segmentation fault with specific optimizations

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110282 --- Comment #9 from mcccs at gmx dot com --- Sorry never mind I understand, it should still be bisected and reduced so that any hidden bugs would be uncovered. I'll bisect it

[Bug c++/119916] [15/16 Regression] folly (2025.04.14.00 and earlier): coroutine tests fail with GCC 15 since r15-3153-g68ee624bc52ba1

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119916 --- Comment #11 from mcccs at gmx dot com --- Created attachment 61216 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61216&action=edit reduction.cpp Probably correct reduction

[Bug middle-end/119999] [12/13 Regression] explicit infinite goto loop removed causing assert

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=11 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug c++/119916] [15/16 Regression] folly (2025.04.14.00 and earlier): coroutine tests fail with GCC 15

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119916 mcccs at gmx dot com changed: What|Removed |Added Attachment #61203|0 |1 is obsolete|

[Bug tree-optimization/112307] Segmentation fault with -O1 -fcode-hoisting

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112307 --- Comment #21 from mcccs at gmx dot com --- Sorry again, there's a function of int type that didn't return anything but the compiler didn't catch it so the reduction script allowed it. My last reduction is also invalid.

[Bug tree-optimization/112307] Segmentation fault with -O1 -fcode-hoisting

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112307 --- Comment #23 from mcccs at gmx dot com --- Yes that's what I think! Thanks

[Bug c++/119916] [15/16 Regression] folly (2025.04.14.00 and earlier): coroutine tests fail with GCC 15

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119916 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug tree-optimization/112307] Segmentation fault with -O1 -fcode-hoisting

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112307 mcccs at gmx dot com changed: What|Removed |Added Attachment #61179|0 |1 is obsolete|

[Bug middle-end/119954] New: "a < b < c < d < ..." taking long time to process to generate error message

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119954 Bug ID: 119954 Summary: "a < b < c < d < ..." taking long time to process to generate error message Product: gcc Version: 16.0 Status: UNCONFIRMED Severity: no

[Bug target/118100] [14/15/16 Regression] Segment Fault by rvv intrinsic compilation at `-O2` and `-O3`.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118100 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug target/120083] New: Use vcvtneps2bf16 AVX512BF instruction to convert float to __bf16

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120083 Bug ID: 120083 Summary: Use vcvtneps2bf16 AVX512BF instruction to convert float to __bf16 Product: gcc Version: 16.0 Status: UNCONFIRMED Severity: normal

[Bug target/120083] Use vcvtneps2bf16 AVX512BF instruction to convert float to __bf16 on -O3 without needing -Ofast

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120083 --- Comment #1 from mcccs at gmx dot com --- So the issue is doing what GCC does for Ofast for O3 as well, many thanks and kind regards

[Bug tree-optimization/120080] [16 regression] ICE when building llvm-20.1.3 (find_bit_tests, at tree-switch-conversion.cc:1799)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120080 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug tree-optimization/120035] Loops are not optimized when "unsigned i" is used

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120035 --- Comment #3 from mcccs at gmx dot com --- I compared the outputs of passes. The divergence starts with cddce3. The unsigned version has this added line: > cannot prove finiteness of loop 2

[Bug target/120083] Use vcvtneps2bf16 AVX512BF instruction to convert float to __bf16 on -O3 without needing -Ofast

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120083 --- Comment #4 from mcccs at gmx dot com --- By the way Andrew, wouldn't it be more performant to check for sNaN then use vcvtneps2bf16 instead of completely avoiding vcvtneps2bf16?

[Bug target/120083] Use vcvtneps2bf16 AVX512BF instruction to convert float to __bf16 on -O3 without needing -Ofast

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120083 --- Comment #5 from mcccs at gmx dot com --- Ah I see then there's the problem of denormals. I guess I'll report this to LLVM so that they may cripple naive AI libraries using O3.

[Bug target/120083] Use vcvtneps2bf16 AVX512BF instruction to convert float to __bf16 on -O3 without needing -Ofast

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120083 --- Comment #6 from mcccs at gmx dot com --- Thank you, reported https://github.com/llvm/llvm-project/issues/138424

[Bug c/120095] [12/13/14/15 regression] ICE in convert_mode_scalar when casting double (*)(double) to int (*)(float) and calling it with a large argument

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120095 --- Comment #1 from mcccs at gmx dot com --- Created attachment 61293 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61293&action=edit reduction.c

[Bug tree-optimization/120089] [15/16 regression] GCC miscompiles VK-GL-CTS (on aarch64) with -O3 since r15-7533-g589d79e6268b05

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120089 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug tree-optimization/120089] [15/16 regression] GCC miscompiles VK-GL-CTS (on aarch64) with -O3 since r15-7533-g589d79e6268b05

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120089 --- Comment #19 from mcccs at gmx dot com --- -O3 can be replaced with -O2 -funswitch-loops -fvect-cost-model=dynamic

[Bug tree-optimization/120089] [15/16 regression] GCC miscompiles VK-GL-CTS (on aarch64) with -O3 since r15-7533-g589d79e6268b05

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120089 --- Comment #20 from mcccs at gmx dot com --- Created attachment 61295 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61295&action=edit further cleanup and converted to C

[Bug tree-optimization/119592] [12/13/14/15/16 Regression] false positive array bounds warning with set> since r12-1992-g6feb628a706e86

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119592 --- Comment #6 from mcccs at gmx dot com --- Created attachment 61165 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61165&action=edit reduced.cpp Thanks for the pointer Sam, here's the C-vise reduction.

[Bug target/118008] [14/15/16 regression] ICE when bootstrapping with Go on arm (gen_movdi, at config/arm/arm.md:6296)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118008 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug tree-optimization/112307] Segmentation fault with -O1 -fcode-hoisting

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112307 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug c++/120127] ICE in GCC when calling destructor of undefined type name in lambda (lookup_template_class crash)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120127 mcccs at gmx dot com changed: What|Removed |Added CC||mcccs at gmx dot com --- Comment

[Bug tree-optimization/119552] New: Deduplicate __divmodbitint4 calls for quotient and remainder

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119552 Bug ID: 119552 Summary: Deduplicate __divmodbitint4 calls for quotient and remainder Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal

[Bug tree-optimization/119552] Deduplicate __divmodbitint4 calls for quotient and remainder

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119552 mcccs at gmx dot com changed: What|Removed |Added Keywords||missed-optimization --- Comment #

[Bug target/119626] New: Use bfcvt arm instruction to cast to __bf16 when ARM target supports it

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119626 Bug ID: 119626 Summary: Use bfcvt arm instruction to cast to __bf16 when ARM target supports it Product: gcc Version: unknown Status: UNCONFIRMED Severity: nor

[Bug target/119626] On ARM, use the bfcvt instruction to cast to __bf16 when target supports it

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119626 mcccs at gmx dot com changed: What|Removed |Added Resolution|INVALID |--- Status|RESOLVED

[Bug target/119626] On ARM, use the bfcvt instruction to cast to __bf16 when target supports it

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119626 mcccs at gmx dot com changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|---

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