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* [Bug target/84251] [9/10/11/12 Regression] Performance regression in gcc 8/9/10/11/12 when comparing floating point numbers [not found] <bug-84251-4@http.gcc.gnu.org/bugzilla/> @ 2021-05-14 9:49 ` jakub at gcc dot gnu.org 2021-06-01 8:10 ` rguenth at gcc dot gnu.org ` (5 subsequent siblings) 6 siblings, 0 replies; 7+ messages in thread From: jakub at gcc dot gnu.org @ 2021-05-14 9:49 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84251 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|8.5 |9.4 --- Comment #14 from Jakub Jelinek <jakub at gcc dot gnu.org> --- GCC 8 branch is being closed. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/84251] [9/10/11/12 Regression] Performance regression in gcc 8/9/10/11/12 when comparing floating point numbers [not found] <bug-84251-4@http.gcc.gnu.org/bugzilla/> 2021-05-14 9:49 ` [Bug target/84251] [9/10/11/12 Regression] Performance regression in gcc 8/9/10/11/12 when comparing floating point numbers jakub at gcc dot gnu.org @ 2021-06-01 8:10 ` rguenth at gcc dot gnu.org 2022-05-27 9:38 ` [Bug target/84251] [10/11/12/13 " rguenth at gcc dot gnu.org ` (4 subsequent siblings) 6 siblings, 0 replies; 7+ messages in thread From: rguenth at gcc dot gnu.org @ 2021-06-01 8:10 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84251 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|9.4 |9.5 --- Comment #15 from Richard Biener <rguenth at gcc dot gnu.org> --- GCC 9.4 is being released, retargeting bugs to GCC 9.5. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/84251] [10/11/12/13 Regression] Performance regression in gcc 8/9/10/11/12 when comparing floating point numbers [not found] <bug-84251-4@http.gcc.gnu.org/bugzilla/> 2021-05-14 9:49 ` [Bug target/84251] [9/10/11/12 Regression] Performance regression in gcc 8/9/10/11/12 when comparing floating point numbers jakub at gcc dot gnu.org 2021-06-01 8:10 ` rguenth at gcc dot gnu.org @ 2022-05-27 9:38 ` rguenth at gcc dot gnu.org 2022-06-28 10:34 ` jakub at gcc dot gnu.org ` (3 subsequent siblings) 6 siblings, 0 replies; 7+ messages in thread From: rguenth at gcc dot gnu.org @ 2022-05-27 9:38 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84251 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|9.5 |10.4 --- Comment #16 from Richard Biener <rguenth at gcc dot gnu.org> --- GCC 9 branch is being closed ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/84251] [10/11/12/13 Regression] Performance regression in gcc 8/9/10/11/12 when comparing floating point numbers [not found] <bug-84251-4@http.gcc.gnu.org/bugzilla/> ` (2 preceding siblings ...) 2022-05-27 9:38 ` [Bug target/84251] [10/11/12/13 " rguenth at gcc dot gnu.org @ 2022-06-28 10:34 ` jakub at gcc dot gnu.org 2023-05-30 7:33 ` [Bug target/84251] [10/11/12/13/14 " pinskia at gcc dot gnu.org ` (2 subsequent siblings) 6 siblings, 0 replies; 7+ messages in thread From: jakub at gcc dot gnu.org @ 2022-06-28 10:34 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84251 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|10.4 |10.5 --- Comment #17 from Jakub Jelinek <jakub at gcc dot gnu.org> --- GCC 10.4 is being released, retargeting bugs to GCC 10.5. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/84251] [10/11/12/13/14 Regression] Performance regression in gcc 8/9/10/11/12 when comparing floating point numbers [not found] <bug-84251-4@http.gcc.gnu.org/bugzilla/> ` (3 preceding siblings ...) 2022-06-28 10:34 ` jakub at gcc dot gnu.org @ 2023-05-30 7:33 ` pinskia at gcc dot gnu.org 2023-07-07 10:33 ` [Bug target/84251] [11/12/13/14 " rguenth at gcc dot gnu.org 2023-08-04 0:50 ` pinskia at gcc dot gnu.org 6 siblings, 0 replies; 7+ messages in thread From: pinskia at gcc dot gnu.org @ 2023-05-30 7:33 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84251 --- Comment #18 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Seems like we could use the range while doing the expansion even? Or some how mark the EQ_EXPR as not having to worry about NANs here during VRP. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/84251] [11/12/13/14 Regression] Performance regression in gcc 8/9/10/11/12 when comparing floating point numbers [not found] <bug-84251-4@http.gcc.gnu.org/bugzilla/> ` (4 preceding siblings ...) 2023-05-30 7:33 ` [Bug target/84251] [10/11/12/13/14 " pinskia at gcc dot gnu.org @ 2023-07-07 10:33 ` rguenth at gcc dot gnu.org 2023-08-04 0:50 ` pinskia at gcc dot gnu.org 6 siblings, 0 replies; 7+ messages in thread From: rguenth at gcc dot gnu.org @ 2023-07-07 10:33 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84251 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|10.5 |11.5 --- Comment #19 from Richard Biener <rguenth at gcc dot gnu.org> --- GCC 10 branch is being closed. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/84251] [11/12/13/14 Regression] Performance regression in gcc 8/9/10/11/12 when comparing floating point numbers [not found] <bug-84251-4@http.gcc.gnu.org/bugzilla/> ` (5 preceding siblings ...) 2023-07-07 10:33 ` [Bug target/84251] [11/12/13/14 " rguenth at gcc dot gnu.org @ 2023-08-04 0:50 ` pinskia at gcc dot gnu.org 6 siblings, 0 replies; 7+ messages in thread From: pinskia at gcc dot gnu.org @ 2023-08-04 0:50 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84251 --- Comment #20 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Hmm: we have: ``` (jump_insn 8 7 9 2 (set (pc) (if_then_else (ordered (reg:CCFP 17 flags) (const_int 0 [0])) (label_ref 12) (pc))) "/app/example.cpp":5:6 1055 {*jcc} (expr_list:REG_DEAD (reg:CCFP 17 flags) (int_list:REG_BR_PROB 1073741831 (nil))) -> 12) (note 9 8 10 3 [bb 3] NOTE_INSN_BASIC_BLOCK) (call_insn 10 9 12 3 (call (mem:QI (symbol_ref:DI ("abort") [flags 0x41] <function_decl 0x7f2aa863b500 __builtin_abort>) [0 __builtin_abort S1 A8]) (const_int 0 [0])) "/app/example.cpp":6:5 1062 {*call} (expr_list:REG_CALL_DECL (symbol_ref:DI ("abort") [flags 0x41] <function_decl 0x7f2aa863b500 __builtin_abort>) (expr_list:REG_ARGS_SIZE (const_int 0 [0]) (expr_list:REG_NORETURN (const_int 0 [0]) (expr_list:REG_EH_REGION (const_int 0 [0]) (nil))))) (nil)) (code_label 12 10 13 4 2 (nil) [1 uses]) (note 13 12 15 4 [bb 4] NOTE_INSN_BASIC_BLOCK) (insn 15 13 16 4 (set (reg:QI 91) (ordered:QI (reg:CCFP 17 flags) (const_int 0 [0]))) "/app/example.cpp":7:12 1050 {*setcc_qi} (expr_list:REG_DEAD (reg:CCFP 17 flags) (nil))) ``` We know in insn 16 at this point (ordered:QI (reg:CCFP 17 flags) (const_int 0 [0])) is 1. Isn't there a pass which does that? Or is it because the differences in the modes (VOIDmode vs QImode) causing that not to happen? ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2023-08-04 0:51 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
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[not found] <bug-84251-4@http.gcc.gnu.org/bugzilla/>
2021-05-14 9:49 ` [Bug target/84251] [9/10/11/12 Regression] Performance regression in gcc 8/9/10/11/12 when comparing floating point numbers jakub at gcc dot gnu.org
2021-06-01 8:10 ` rguenth at gcc dot gnu.org
2022-05-27 9:38 ` [Bug target/84251] [10/11/12/13 " rguenth at gcc dot gnu.org
2022-06-28 10:34 ` jakub at gcc dot gnu.org
2023-05-30 7:33 ` [Bug target/84251] [10/11/12/13/14 " pinskia at gcc dot gnu.org
2023-07-07 10:33 ` [Bug target/84251] [11/12/13/14 " rguenth at gcc dot gnu.org
2023-08-04 0:50 ` pinskia at gcc dot gnu.org
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