[Bug middle-end/42588] unnecessary move through x87 stack/local frame for union

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=42588 Andrew Pinski changed: What|Removed |Added Target Milestone|--- |4.9.0 Resolution|---

[Bug rtl-optimization/34849] Missed autoincrement opportunities due to a different basic block structure.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=34849 Andrew Pinski changed: What|Removed |Added Status|NEW |RESOLVED Known to fail|

[Bug target/9760] [arm] Combine cannot do its job because immediate operand is used instead of register

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=9760 --- Comment #10 from Andrew Pinski --- Still happens on the trunk. Note armv7-a produces reasonable code though as it uses ubfx which is new for armv7-a: push{r4, lr} mov r4, r0 movsr0, #8 lsrsr1, r4

[Bug tree-optimization/43037] re-association doesn't handle multiple uses with constant operands

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43037 Andrew Pinski changed: What|Removed |Added Resolution|--- |FIXED Target Milestone|---

[Bug middle-end/43182] GCC does not pull out a[0] from loop that changes a[i] for i:[1,n]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43182 Andrew Pinski changed: What|Removed |Added Severity|normal |enhancement --- Comment #7 from Andrew P

[Bug target/40783] inefficient code to accumulate function return values

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=40783 Andrew Pinski changed: What|Removed |Added See Also||https://gcc.gnu.org/bugzill

[Bug rtl-optimization/43908] Redundant conditionals [4.5 only] - unnecessary mov of a constant after unrolling.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43908 Andrew Pinski changed: What|Removed |Added Last reconfirmed|2010-04-28 10:10:19 |2021-7-26 Severity|normal

[Bug middle-end/43233] x86 flags not combined across blocks

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43233 Andrew Pinski changed: What|Removed |Added Host|x86_64-*-* |x86_64-*-*, aarch64 Component|t

[Bug tree-optimization/44711] PRE doesn't remove equivalent computations of induction variables

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44711 Andrew Pinski changed: What|Removed |Added Resolution|--- |FIXED Target Milestone|---

[Bug target/44278] Use ubfx to extract unsigned bit fields at the low end

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44278 Andrew Pinski changed: What|Removed |Added Resolution|--- |FIXED Target Milestone|---

[Bug middle-end/35360] Static (base/offset/size rule) should be extended to handle array elements

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=35360 Andrew Pinski changed: What|Removed |Added Target Milestone|--- |4.9.0 Status|NEW

[Bug middle-end/35358] Ansi aliasing info not fully utilized by tree SSA optimizations

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=35358 Bug 35358 depends on bug 35360, which changed state. Bug 35360 Summary: Static (base/offset/size rule) should be extended to handle array elements https://gcc.gnu.org/bugzilla/show_bug.cgi?id=35360 What|Removed

[Bug c++/57] [DR 325] GCC can't parse a non-parenthesized comma in a template-id within a default argument

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57 --- Comment #48 from Jonathan Wakely --- No, as previously stated, it's suspended until the Core issue is resolved and the standard is changed. https://wg21.link/cwg325

[Bug c++/101622] Type erasure (upcasting) in constexpr/consteval context

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101622 Jonathan Wakely changed: What|Removed |Added Keywords||rejects-valid Status|UNCO

[Bug target/46209] pmovmskb, useless sign extension

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=46209 Andrew Pinski changed: What|Removed |Added Depends on||66369 Ever confirmed|0

[Bug tree-optimization/46281] Inefficient unswitching (too many copies)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=46281 Andrew Pinski changed: What|Removed |Added Status|UNCONFIRMED |NEW Ever confirmed|0

[Bug middle-end/47673] Redundant NULL check

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47673 Andrew Pinski changed: What|Removed |Added Target Milestone|--- |11.0 Status|NEW

[Bug middle-end/78103] Failure to optimize with __builtin_clzl

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78103 --- Comment #9 from Jakub Jelinek --- Created attachment 51204 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51204&action=edit gcc12-pr78103.patch Untested partial fix. The patch does 2 things, one is (shown on the first testcase) optimiz

[Bug middle-end/78103] Failure to optimize with __builtin_clzl

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78103 Jakub Jelinek changed: What|Removed |Added CC||segher at gcc dot gnu.org --- Comment #1

[Bug middle-end/78103] Failure to optimize with __builtin_clzl

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78103 --- Comment #11 from Jakub Jelinek --- Or is it because of the new pseudo that is created for the temporary? Seems when the combiner is splitting the insns itself using find_split_point, it tries to reuse i2dest if possible for the middle tempora

[Bug gcov-profile/101623] New: [GCOV] Wrong coverage of callee function

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101623 Bug ID: 101623 Summary: [GCOV] Wrong coverage of callee function Product: gcc Version: 10.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: gcov-

[Bug target/101544] [OpenMP][AMDGCN][nvptx] C++ offloading: unresolved _Znwm = "operator new(unsigned long)"

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101544 Thomas Schwinge changed: What|Removed |Added CC||tschwinge at gcc dot gnu.org Last r

[Bug middle-end/78103] Failure to optimize with __builtin_clzl

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78103 --- Comment #12 from Jakub Jelinek --- If reusing i2dest for the find_split_case is fine (I must say I'm a little bit worried about uses of the pseudo in debug insns, whether if we reuse it for something else we properly adjust those insns (or re

[Bug fortran/93308] bind(c) subroutine changes lower bound of array argument in caller

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93308 --- Comment #9 from CVS Commits --- The master branch has been updated by Tobias Burnus : https://gcc.gnu.org/g:0cbf03689e3e7d9d6002b8e5d159ef3716d0404c commit r12-2511-g0cbf03689e3e7d9d6002b8e5d159ef3716d0404c Author: Tobias Burnus Date: Mo

[Bug fortran/93963] Select rank mishandling allocatable and pointer arguments with bind(c)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93963 --- Comment #8 from CVS Commits --- The master branch has been updated by Tobias Burnus : https://gcc.gnu.org/g:0cbf03689e3e7d9d6002b8e5d159ef3716d0404c commit r12-2511-g0cbf03689e3e7d9d6002b8e5d159ef3716d0404c Author: Tobias Burnus Date: Mo

[Bug fortran/94327] Bind(c) argument attributes are incorrectly set

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94327 --- Comment #7 from CVS Commits --- The master branch has been updated by Tobias Burnus : https://gcc.gnu.org/g:0cbf03689e3e7d9d6002b8e5d159ef3716d0404c commit r12-2511-g0cbf03689e3e7d9d6002b8e5d159ef3716d0404c Author: Tobias Burnus Date: Mo

[Bug fortran/94331] Bind(C) corrupts array descriptors

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94331 --- Comment #14 from CVS Commits --- The master branch has been updated by Tobias Burnus : https://gcc.gnu.org/g:0cbf03689e3e7d9d6002b8e5d159ef3716d0404c commit r12-2511-g0cbf03689e3e7d9d6002b8e5d159ef3716d0404c Author: Tobias Burnus Date: M

[Bug fortran/97046] Bad interaction between lbound/ubound, allocatable arrays and bind(C) subroutine with dimension(..) parameter

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97046 --- Comment #10 from CVS Commits --- The master branch has been updated by Tobias Burnus : https://gcc.gnu.org/g:0cbf03689e3e7d9d6002b8e5d159ef3716d0404c commit r12-2511-g0cbf03689e3e7d9d6002b8e5d159ef3716d0404c Author: Tobias Burnus Date: M

[Bug fortran/100906] Bind(c): failure handling character with len/=1

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100906 Tobias Burnus changed: What|Removed |Added CC||burnus at gcc dot gnu.org --- Comment #

[Bug target/101611] AVX2 vector arithmetic shift lowered to scalar unnecessarily

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101611 --- Comment #4 from Jakub Jelinek --- Created attachment 51205 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51205&action=edit gcc12-pr101611.patch Full untested fix.

[Bug target/101611] AVX2 vector arithmetic shift lowered to scalar unnecessarily

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101611 --- Comment #5 from Marc Glisse --- (In reply to Jakub Jelinek from comment #2) > for arithmetic V[24]DImode >> V[24]DImode > logical ((x >> y) ^ (0x8000ULL >> y)) - (0x8000ULL > >> y) > can be used. I guess it would be

[Bug target/101611] AVX2 vector arithmetic shift lowered to scalar unnecessarily

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101611 --- Comment #6 from Jakub Jelinek --- I think except for x86 it is very unusual to support logical but not arithmetic vector right shifts, are you aware of any other target that suffers from these? Even vector by vector shifts are rare, if my gr

[Bug target/101611] AVX2 vector arithmetic shift lowered to scalar unnecessarily

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101611 --- Comment #7 from Marc Glisse --- The same strategy to implement arithmetic shift in terms of logical shift works not just for vector>>vector but also vector>>scalar and scalar>>scalar. But it is probably not worth the trouble indeed, especial

[Bug target/101611] AVX2 vector arithmetic shift lowered to scalar unnecessarily

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101611 --- Comment #8 from Jakub Jelinek --- That is true, but I think even for vector >> scalar and scalar >> scalar shifts it will be quite rare to support logical and not support arithmetic shifts. And on x86, as can be seen in the PR98856 changes,

[Bug driver/101447] Remove legacy external declarations in toplev.h

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101447 --- Comment #5 from CVS Commits --- The master branch has been updated by Jeff Law : https://gcc.gnu.org/g:bf6d414415e14e13be16abf23375160733567d20 commit r12-2512-gbf6d414415e14e13be16abf23375160733567d20 Author: Ashimida Date: Mon Jul 26

[Bug target/92713] ICE in libsupc++ building an offload compiler targeting amdgcn-unknown-amdhsa

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92713 --- Comment #3 from Tobias Burnus --- "ICE in libsupc++ building an offload compiler targeting amdgcn-unknown-amdhsa" (Subject) I wonder whether that ICE is just because of the lack of exception support and whether it might work when using -fn

[Bug fortran/101624] New: [9/10/11/12 Regression] ICE: tree check: expected tree that contains 'decl with RTL' structure, have 'const_decl' in maybe_optimize_ubsan_ptr_ifn, at sanopt.c:495

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101624 Bug ID: 101624 Summary: [9/10/11/12 Regression] ICE: tree check: expected tree that contains 'decl with RTL' structure, have 'const_decl' in maybe_optimize_ubsan_ptr_ifn, at

[Bug lto/101625] New: ICE in modref_tree::merge with LTO and -m32

nfigure --prefix=/home/tonyb/tmp/gcc/install Thread model: posix Supported LTO compression algorithms: zlib gcc version 11.1.1 20210726 (GCC) gcc -std=gnu99 -Os -m32 -Wall -W -Wshadow -Wpointer-arith -Wundef -Wchar-subscripts -Wcomment -Wdeprecated-declarations -Wdisabled-optimization -Wdiv-by-zero

[Bug fortran/100440] allocated() gives True for unallocated variable

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100440 --- Comment #13 from David.Smith at lmu dot edu --- Thanks for working on the bug I reported in May. I am hoping you can give me some information that I can pass on to the users of my open-source software who use gfortran to run it. Can you est

[Bug c/101626] New: [12 Regression] ICE in verify_sra_access_forest, at tree-sra.c:2376

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101626 Bug ID: 101626 Summary: [12 Regression] ICE in verify_sra_access_forest, at tree-sra.c:2376 Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal

[Bug fortran/101627] New: List-directed read with trailing characters after quotes

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101627 Bug ID: 101627 Summary: List-directed read with trailing characters after quotes Product: gcc Version: 11.1.0 Status: UNCONFIRMED Severity: normal Pr

[Bug preprocessor/101628] New: Preprocessor errors on extended characters in #if 0 code block

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101628 Bug ID: 101628 Summary: Preprocessor errors on extended characters in #if 0 code block Product: gcc Version: 10.3.0 Status: UNCONFIRMED Severity: normal

[Bug c++/101629] New: ICE: in cp_finish_decl, at cp/decl.c:7826

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101629 Bug ID: 101629 Summary: ICE: in cp_finish_decl, at cp/decl.c:7826 Product: gcc Version: 12.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++

[Bug c++/101629] ICE: in cp_finish_decl, at cp/decl.c:7826

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101629 Marek Polacek changed: What|Removed |Added Ever confirmed|0 |1 Status|UNCONFIRMED

[Bug tree-optimization/78888] toupper(x) can be assumed not to be in the range 'a' - 'z'

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=7 --- Comment #2 from CVS Commits --- The master branch has been updated by Andrew Macleod : https://gcc.gnu.org/g:1ce0b26e6e1e6c348b1d54f1f462a44df6fe47f5 commit r12-2517-g1ce0b26e6e1e6c348b1d54f1f462a44df6fe47f5 Author: Andrew MacLeod Date:

[Bug tree-optimization/78888] toupper(x) can be assumed not to be in the range 'a' - 'z'

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=7 Andrew Macleod changed: What|Removed |Added Resolution|--- |FIXED Status|NEW

[Bug c/101630] New: ICE with -Wall: in get_constant, at c-family/c-format.c:325

version 12.0.0 20210726 (experimental) [master revision :c09cf6429:124bb55777c280a85d0c72ec13e293a32917a6b9] (GCC) $ cat mutant.c printf(char[][], ...) { printf(printf); } $ gcc-trunk -Wall mutant.c mutant.c:1:12: error: array type has incomplete element type ‘char[]’ 1 | printf(char

[Bug preprocessor/101628] Preprocessor errors on extended characters in #if 0 code block

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101628 --- Comment #1 from Andrew Pinski --- Related to PR 62661 which was closed as invalid. Basically the C++ standard says the tokens inside the #if blocks need to be valid tokens still.

[Bug c++/101631] New: gcc permits object reference to object outside of its lifetime during constant evaluation

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101631 Bug ID: 101631 Summary: gcc permits object reference to object outside of its lifetime during constant evaluation Product: gcc Version: 12.0 Status: UNCONFIRMED

[Bug target/49127] -Os generates constant mov instead of instruction xor and mov when zeroing

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=49127 Andrew Pinski changed: What|Removed |Added Resolution|--- |DUPLICATE Status|UNCONFIRMED

[Bug target/11877] gcc should use xor trick with -Os

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=11877 Andrew Pinski changed: What|Removed |Added CC||msharov at users dot sourceforge.n

[Bug target/41505] GCC choosing poor code sequence for certain stores (x86)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=41505 Andrew Pinski changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|---

[Bug target/11877] gcc should use xor trick with -Os

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=11877 Andrew Pinski changed: What|Removed |Added CC||jeffreyalaw at gmail dot com --- Comment

[Bug fortran/101632] New: NON_RECURSIVE procedure prefix is unsupported. F2018 defaults to recursive procedures.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101632 Bug ID: 101632 Summary: NON_RECURSIVE procedure prefix is unsupported. F2018 defaults to recursive procedures. Product: gcc Version: 12.0 Status: UNCONFIRMED

[Bug tree-optimization/50286] Missed optimization, fails to propagate bool

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50286 Andrew Pinski changed: What|Removed |Added Last reconfirmed|2011-12-14 00:00:00 |2021-7-26 --- Comment #2 from Andrew Pin

[Bug fortran/101632] NON_RECURSIVE procedure prefix is unsupported. F2018 defaults to recursive procedures.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101632 --- Comment #1 from kargl at gcc dot gnu.org --- F2018 introduced the NON_RECURSIVE prefix for procedures and also made procedures recursive by default. This code is conforming to F2018. module bah contains ! ! non_recursive is

[Bug fortran/101632] NON_RECURSIVE procedure prefix is unsupported. F2018 defaults to recursive procedures.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101632 --- Comment #2 from kargl at gcc dot gnu.org --- Created attachment 51207 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51207&action=edit Diff that implements F2018 NON_RECURSIVE and makes things recursive by default.

[Bug target/26656] Optimization flaw on conditional set of a bit.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=26656 Andrew Pinski changed: What|Removed |Added Component|tree-optimization |target Target|

[Bug tree-optimization/24696] missing optimization in comparison of results of bit operations

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=24696 Andrew Pinski changed: What|Removed |Added Status|NEW |RESOLVED Resolution|---

[Bug middle-end/14842] Another way of expanding a switch statement

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=14842 Andrew Pinski changed: What|Removed |Added Status|NEW |RESOLVED Target Milestone|---

[Bug tree-optimization/51084] bounds checking not optimized to a single comparison

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51084 Andrew Pinski changed: What|Removed |Added Last reconfirmed|2012-01-07 00:00:00 |2021-7-26 --- Comment #2 from Andrew Pin

[Bug target/15533] Missed move to partial register

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=15533 --- Comment #4 from Andrew Pinski --- This looks improved in GCC 4.4.7 and above: fn(unsigned short): movzbl a, %edx xorb%al, %al orl %edx, %eax ret

[Bug tree-optimization/34011] Memory load is not eliminated from tight vectorized loop

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=34011 --- Comment #9 from Andrew Pinski --- good function: .L3: movdqu (%rdi,%rax), %xmm0 pslld %xmm1, %xmm0 movups %xmm0, (%rsi,%rax) addq$16, %rax cmpq$1024, %rax jne .L3 bad function:

[Bug middle-end/52070] missing integer comparison optimization

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52070 Andrew Pinski changed: What|Removed |Added Last reconfirmed|2012-02-01 00:00:00 |2021-7-26 Component|tree-optimi

[Bug middle-end/39744] component references with VIEW_CONVERT_EXPR should be canonicalized

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=39744 --- Comment #3 from Andrew Pinski --- Confirmed again: Before FRE: z = 1; _4 = MEM[(struct X *)&z].y.z; Note fre we are able to do the right thing but dom does not.

[Bug tree-optimization/38209] branch optimisation generates worse code

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=38209 Andrew Pinski changed: What|Removed |Added Assignee|unassigned at gcc dot gnu.org |pinskia at gcc dot gnu.org

[Bug tree-optimization/30101] missed value numbering optimization (cprop+valnum)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=30101 Andrew Pinski changed: What|Removed |Added Resolution|--- |FIXED Target Milestone|---

[Bug c++/101631] gcc permits object reference to object outside of its lifetime during constant evaluation

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101631 Jonathan Wakely changed: What|Removed |Added Status|UNCONFIRMED |WAITING Ever confirmed|0

[Bug tree-optimization/34417] simplify '(x & A) % B' if 'B > A/2'

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=34417 Andrew Pinski changed: What|Removed |Added Last reconfirmed|2007-12-10 13:40:29 |2021-7-26 --- Comment #3 from Andrew Pin

[Bug tree-optimization/50272] A case that PRE optimization hurts performance

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=50272 --- Comment #6 from Andrew Pinski --- In GCC 5+ we can get rid of the loop fully (in the reduced testcase).

[Bug middle-end/78103] Failure to optimize with __builtin_clzl

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78103 --- Comment #13 from Segher Boessenkool --- (In reply to Jakub Jelinek from comment #10) > Unfortunately, it doesn't work for the #c0 testcase, after the combiner > splitter kicks in, the combiner doesn't even try that 4 insn combination. It do

[Bug middle-end/54802] Trivial code changes result in different assembly with respect to rotations and bswap.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54802 --- Comment #1 from Andrew Pinski --- In GCC 5+, we are able to figure out both do bswap.

[Bug middle-end/78103] Failure to optimize with __builtin_clzl

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78103 --- Comment #14 from Jakub Jelinek --- (In reply to Segher Boessenkool from comment #13) > (In reply to Jakub Jelinek from comment #10) > > Unfortunately, it doesn't work for the #c0 testcase, after the combiner > > splitter kicks in, the combine

[Bug tree-optimization/56610] IPA(-CP) clone materialization fails to cleanup the CFG

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56610 Andrew Pinski changed: What|Removed |Added Known to fail||12.0 Status|UNCONFIRMED

[Bug middle-end/78103] Failure to optimize with __builtin_clzl

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78103 --- Comment #15 from Segher Boessenkool --- (In reply to Jakub Jelinek from comment #14) > (In reply to Segher Boessenkool from comment #13) > > (In reply to Jakub Jelinek from comment #10) > > > Unfortunately, it doesn't work for the #c0 testcas

[Bug tree-optimization/56711] missed optimization for __uint128_t of (unsigned long long)x != x

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56711 Andrew Pinski changed: What|Removed |Added Status|NEW |ASSIGNED Assignee|unassigned a

[Bug tree-optimization/56369] Missed opportunity to combine comparisons with zero

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56369 Andrew Pinski changed: What|Removed |Added Target Milestone|--- |7.0 Resolution|---

[Bug target/60826] inefficient code for vector xor on SSE2

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60826 Andrew Pinski changed: What|Removed |Added Status|NEW |RESOLVED Target Milestone|---

[Bug tree-optimization/57186] implement load sinking in loops

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57186 Andrew Pinski changed: What|Removed |Added Target Milestone|--- |5.0 Resolution|---

[Bug middle-end/56924] Folding of checks into a range check should check upper boundary

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56924 Andrew Pinski changed: What|Removed |Added Assignee|unassigned at gcc dot gnu.org |pinskia at gcc dot gnu.org

[Bug rtl-optimization/32629] missing CSE for constant in registers / inefficient memset

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=32629 Andrew Pinski changed: What|Removed |Added Resolution|--- |DUPLICATE Status|NEW

[Bug target/11877] gcc should use xor trick with -Os

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=11877 Andrew Pinski changed: What|Removed |Added CC||andi-gcc at firstfloor dot org --- Comme

[Bug target/63525] unnecessary reloads generated in loop

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63525 Andrew Pinski changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|---

[Bug target/48297] Suboptimal optimization of boolean expression addition

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48297 Andrew Pinski changed: What|Removed |Added Last reconfirmed|2011-03-28 09:34:02 |2021-7-26 --- Comment #2 from Andrew Pin

[Bug tree-optimization/68136] missed tree-level optimization with redundant computations

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68136 Andrew Pinski changed: What|Removed |Added Last reconfirmed|2015-10-28 00:00:00 |2021-7-26 --- Comment #3 from Andrew Pin

[Bug tree-optimization/78888] toupper(x) can be assumed not to be in the range 'a' - 'z'

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=7 --- Comment #4 from CVS Commits --- The master branch has been updated by Andrew Macleod : https://gcc.gnu.org/g:d5a8c1382718ae084d46ff9b8a26d6b1d0cb684c commit r12-2519-gd5a8c1382718ae084d46ff9b8a26d6b1d0cb684c Author: Andrew MacLeod Date:

[Bug rtl-optimization/70782] zero-initialized long returned by value generates useless stores/loads to the stack

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70782 Andrew Pinski changed: What|Removed |Added Last reconfirmed||2021-07-26 Status|UNCONFIRME

[Bug target/67510] x86: Faster code is possible for integer absolute value

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67510 Andrew Pinski changed: What|Removed |Added See Also||https://gcc.gnu.org/bugzill

[Bug tree-optimization/71461] missed optimization in conditional assignment

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71461 Andrew Pinski changed: What|Removed |Added Last reconfirmed|2016-06-09 00:00:00 |2021-7-26 Severity|normal

[Bug middle-end/19466] [meta-bug] bit-fields are non optimal

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19466 Andrew Pinski changed: What|Removed |Added Status|NEW |ASSIGNED Assignee|unassigned a

[Bug tree-optimization/24568] [meta-bug] Missed optimization: trivialization of silly code

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=24568 Andrew Pinski changed: What|Removed |Added Last reconfirmed|2008-11-22 10:41:24 |2021-7-26 --- Comment #10 from Andrew Pi

[Bug target/66663] gcc misses optimization emits useless test of (a & 31) with 32

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3 Andrew Pinski changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Target Milestone|---

[Bug target/66663] gcc misses optimization emits useless test of (a & 31) with 32

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3 Andrew Pinski changed: What|Removed |Added Resolution|FIXED |DUPLICATE --- Comment #3 from Andrew Pin

[Bug target/84431] Suboptimal code for masked shifts (x86/x86-64)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84431 Andrew Pinski changed: What|Removed |Added CC||fuz at fuz dot su --- Comment #9 from An

[Bug tree-optimization/101626] [12 Regression] ICE in verify_sra_access_forest, at tree-sra.c:2376

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101626 Andrew Pinski changed: What|Removed |Added Component|c |tree-optimization CC|

[Bug c++/55436] g++ compiles invalid code with child class of nested class in template class

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55436 Andrew Pinski changed: What|Removed |Added Resolution|--- |FIXED Status|NEW

[Bug c++/51716] access to private member possible

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51716 Andrew Pinski changed: What|Removed |Added Target Milestone|--- |5.0 Resolution|---

[Bug c++/24926] gcc ignores access level violation for anonymous structs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=24926 Andrew Pinski changed: What|Removed |Added CC||kuba at et dot pl --- Comment #7 from An

[Bug c++/52618] Explicit template specialization ignores access rights

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52618 Andrew Pinski changed: What|Removed |Added Resolution|--- |FIXED Status|NEW

[Bug c++/52761] [C++11] Missing diagnostic for opaque unscoped enum declaration without base

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52761 --- Comment #2 from Andrew Pinski --- clang declared this as a GNU extention :) :2:6: error: redeclaration of already-defined enum 'E' is a GNU extension [-Werror,-Wgnu-redeclared-enum] enum E; // illegal ^ :1:6: note: previous definition i

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