[Bug target/84280] [6/7/8 Regression] Performance regression in g++-7 with Eigen for non-AVX2 CPUs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84280 --- Comment #3 from Patrik Huber --- @Richard: I'm not 100% sure what you mean with "preprocessed source" but I googled and you probably mean the output of compiling with "-c -save-temps". Please see attached.

[Bug target/84280] [6/7/8 Regression] Performance regression in g++-7 with Eigen for non-AVX2 CPUs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84280 Marc Glisse changed: What|Removed |Added Known to work||5.5.0 Summary|Performance

[Bug go/84215] Random results in go/libgo tests

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84215 --- Comment #5 from Christophe Lyon --- Today on ARM: --- FAIL: TestExtraFiles (1.19s) testing.go:560: TestExtraFiles: Something already leaked - closed fd 63 testing.go:560: Run: exit status 1; stdout "leaked parent file. fd =

[Bug target/83008] [performance] Is it better to avoid extra instructions in data passing between loops?

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83008 --- Comment #36 from sergey.shalnov at intel dot com --- The patch fixes the issue for SKX is in https://gcc.gnu.org/ml/gcc-patches/2018-02/msg00405.html I will close the PR after the patch has been merged. Thank you very much for all involved.

[Bug c++/84281] Heap grows indefinitely

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84281 --- Comment #2 from fiesh at zefix dot tv --- I guess that depends on the definition of "meaningful". It reproduces the problem, so I'd say yes. ;)

[Bug target/84280] Performance regression in g++-7 with Eigen for non-AVX2 CPUs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84280 Richard Biener changed: What|Removed |Added Status|UNCONFIRMED |WAITING Last reconfirmed|

[Bug c++/84281] Heap grows indefinitely

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84281 Richard Biener changed: What|Removed |Added Keywords||memory-hog --- Comment #1 from Richard

[Bug target/84272] [8 Regression] AddressSanitizer: heap-use-after-free ../../gcc/config/aarch64/cortex-a57-fma-steering.c:519 in fma_node::get_parity()

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84272 ktkachov at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |NEW Last

[Bug c++/84281] New: Heap grows indefinitely

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84281 Bug ID: 84281 Summary: Heap grows indefinitely Product: gcc Version: 7.3.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee:

[Bug tree-optimization/84224] [7 Regression] ICE in execute, at gimple-ssa-warn-alloca.c:448

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84224 Aldy Hernandez changed: What|Removed |Added Summary|[7/8 Regression] ICE in |[7 Regression] ICE in

[Bug tree-optimization/84224] [7/8 Regression] ICE in execute, at gimple-ssa-warn-alloca.c:448

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84224 --- Comment #2 from Aldy Hernandez --- Author: aldyh Date: Thu Feb 8 11:16:25 2018 New Revision: 257480 URL: https://gcc.gnu.org/viewcvs?rev=257480=gcc=rev Log: PR tree-optimization/84224 * gimple-ssa-warn-alloca.c

[Bug tree-optimization/84261] gcc fails to vectorize a function call

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84261 --- Comment #5 from Marcin Krotkiewski --- (In reply to Jakub Jelinek from comment #4) > The declare simd on the functions is essentially an implicit loop around the > whole body, so the function in this cases is passed a V4DFmode argument and >

[Bug tree-optimization/84261] gcc fails to vectorize a function call

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84261 Jakub Jelinek changed: What|Removed |Added Keywords||openmp Component|libgomp

[Bug target/83969] [8 Regression] ICE in final_scan_insn, at final.c:2997 (error: could not split insn) for powerpc targets

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83969 --- Comment #7 from Jakub Jelinek --- Yes, it does (just verified with latest trunk). ;; TImode/PTImode is similar, except that we usually want to compute the ;; address into a register and use lsi/stsi (the exception is during reload).

[Bug target/83969] [8 Regression] ICE in final_scan_insn, at final.c:2997 (error: could not split insn) for powerpc targets

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83969 --- Comment #6 from Segher Boessenkool --- r256598 deleted *movti_string (and all other string instructions); does this bug still happen? That patch was committed 20180112.

[Bug c++/84280] New: Performance regression in g++-7 with Eigen for non-AVX2 CPUs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84280 Bug ID: 84280 Summary: Performance regression in g++-7 with Eigen for non-AVX2 CPUs Product: gcc Version: 7.2.1 Status: UNCONFIRMED Severity: normal

[Bug target/84279] [8 Regression] powerpc64le ICE on cvc4

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84279 --- Comment #1 from Jakub Jelinek --- pr84279.C: In member function ‘void B::m5(B::D*)’: pr84279.C:29:79: error: could not split insn void B::m5 (D *c) { unsigned x; C ar; A am; if (ar.m1 (c->e, am)) m6 (x, am); }

[Bug target/84279] [8 Regression] powerpc64le ICE on cvc4

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84279 Jakub Jelinek changed: What|Removed |Added CC||dje at gcc dot gnu.org,

[Bug target/84279] New: [8 Regression] powerpc64le ICE on cvc4

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84279 Bug ID: 84279 Summary: [8 Regression] powerpc64le ICE on cvc4 Product: gcc Version: 8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target

[Bug lto/84213] [8 Regression] 521.wrf_r from SPEC 2017 fails to build (link) with LTO

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84213 --- Comment #6 from Richard Biener --- In the Fortran case the DECL_VALUE_EXPR is COMPONENT_REF and rtl_for_decl_location gets to a location via loc_list_from_tree which eventually looks at DECL_VALUE_EXPR. I'm

[Bug c++/83806] [6/7/8 Regression] Spurious -Wunused-but-set-parameter with nullptr

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83806 Paolo Carlini changed: What|Removed |Added Status|NEW |ASSIGNED

[Bug lto/84213] [8 Regression] 521.wrf_r from SPEC 2017 fails to build (link) with LTO

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84213 Richard Biener changed: What|Removed |Added CC||pmderodat at gcc dot gnu.org ---

[Bug tree-optimization/82604] [8 Regression] SPEC CPU2006 410.bwaves ~50% performance regression with trunk@253679 when ftree-parallelize-loops is used

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82604 --- Comment #27 from Alexander Nesterovskiy --- Place of interest here is a loop in mat_times_vec function. For r253678 a mat_times_vec.constprop._loopfn.0 is created with autopar. For r256990 the mat_times_vec is inlined into bi_cgstab_block

[Bug tree-optimization/82604] [8 Regression] SPEC CPU2006 410.bwaves ~50% performance regression with trunk@253679 when ftree-parallelize-loops is used

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82604 --- Comment #26 from Alexander Nesterovskiy --- Created attachment 43361 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=43361=edit r253678 vs r256990_work_spin

[Bug fortran/84276] Invalid error for valid statement function

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84276 Dominique d'Humieres changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed|

[Bug ada/84277] [8 Regression] A lot of new acats testsuite failures

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84277 Richard Biener changed: What|Removed |Added Target Milestone|--- |8.0

[Bug fortran/84276] Invalid error for valid statement function

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84276 Richard Biener changed: What|Removed |Added Keywords||rejects-valid Status|NEW

[Bug fortran/84270] [7/8 Regression] optimization bug with assumed size array argument

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84270 Richard Biener changed: What|Removed |Added Keywords||wrong-code Target Milestone|---

[Bug fortran/84276] Invalid error for valid statement function

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84276 Dominique d'Humieres changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed|

[Bug tree-optimization/84037] [8 Regression] Speed regression of polyhedron benchmark since r256644

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84037 --- Comment #24 from Richard Biener --- (In reply to amker from comment #23) > (In reply to Richard Biener from comment #21) > > So after r257453 we improve the situation pre-IVOPTs to just > > 6 IVs (duplicated but trivially equivalent) plus

[Bug target/84251] [8 Regression] Performance regression in gcc 8 when comparing floating point numbers

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84251 --- Comment #3 from Jakub Jelinek --- Testcase without headers: int cmp (double a, double b) { if (__builtin_isnan (a) || __builtin_isnan (b)) __builtin_abort (); return a == b; } In *.optimized we have: if (a_2(D) unord b_3(D))

[Bug middle-end/84251] [8 Regression] Performance regression in gcc 8 when comparing floating point numbers

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84251 Jakub Jelinek changed: What|Removed |Added CC||jakub at gcc dot gnu.org,

[Bug target/83789] __builtin_altivec_lvx fails for powerpc for altivec-4.c

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83789 --- Comment #5 from Kaushikp --- >> Kaushik: is this fixed with r256762? No. The testcase still fails with internal compiler error: Segmentation fault. This revision (r256762) dated 16th Jan 2018 still calls 'CODE_FOR_altivec_lvx_v4si_2op' insn

[Bug c++/83204] [6/7 Regression] c++ -std=c++14 ICE in maybe_undo_parenthesized_ref, at cp/semantics.c:1694

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83204 Paolo Carlini changed: What|Removed |Added Summary|[6/7/8 Regression] c++ |[6/7 Regression] c++

[Bug c++/83204] [6/7/8 Regression] c++ -std=c++14 ICE in maybe_undo_parenthesized_ref, at cp/semantics.c:1694

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83204 --- Comment #4 from paolo at gcc dot gnu.org --- Author: paolo Date: Thu Feb 8 09:06:33 2018 New Revision: 257478 URL: https://gcc.gnu.org/viewcvs?rev=257478=gcc=rev Log: /cp 2018-02-08 Paolo Carlini PR

[Bug target/84248] [8 Regression] r257414 failed too bootstrap in libitm

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84248 Jakub Jelinek changed: What|Removed |Added Status|NEW |RESOLVED CC|

[Bug target/84278] claims initv4sfv2sf is available but inits through stack

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84278 Richard Biener changed: What|Removed |Added Status|UNCONFIRMED |ASSIGNED Last reconfirmed|

[Bug target/84278] New: claims initv4sfv2sf is available but inits through stack

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84278 Bug ID: 84278 Summary: claims initv4sfv2sf is available but inits through stack Product: gcc Version: 8.0 Status: UNCONFIRMED Keywords: missed-optimization

[Bug ada/84277] New: [8 Regression] A lot of new acats testsuite failures

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84277 Bug ID: 84277 Summary: [8 Regression] A lot of new acats testsuite failures Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3

[Bug fortran/84270] [7/8 Regression] optimization bug with assumed size array argument

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84270 Thomas Koenig changed: What|Removed |Added Status|UNCONFIRMED |ASSIGNED Last reconfirmed|

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