[Bug rtl-optimization/88253] Inlining of function incorrectly deletes volatile register access when using XOR in avr-gcc
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88253 Senthil Kumar Selvaraj changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution|--- |FIXED Assignee|segher at gcc dot gnu.org |saaadhu at gcc dot gnu.org --- Comment #8 from Senthil Kumar Selvaraj --- Fixed in trunk, and backported to gcc-8-branch and gcc-7-branch.
[Bug rtl-optimization/88253] Inlining of function incorrectly deletes volatile register access when using XOR in avr-gcc
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88253 --- Comment #7 from Senthil Kumar Selvaraj --- Author: saaadhu Date: Mon Dec 17 13:26:50 2018 New Revision: 267201 URL: https://gcc.gnu.org/viewcvs?rev=267201=gcc=rev Log: 2018-12-17 Senthil Kumar Selvaraj Backport from trunk 2018-12-17 Senthil Kumar Selvaraj PR rtl-optimization/88253 * combine.c (combine_simplify_rtx): Test for side-effects before substituting by zero. 2018-12-17 Senthil Kumar Selvaraj Backport from trunk 2018-12-17 Senthil Kumar Selvaraj PR rtl-optimization/88253 * gcc.target/avr/pr88253.c: New test. Added: branches/gcc-7-branch/gcc/testsuite/gcc.target/avr/pr88253.c Modified: branches/gcc-7-branch/gcc/ChangeLog branches/gcc-7-branch/gcc/combine.c branches/gcc-7-branch/gcc/testsuite/ChangeLog
[Bug rtl-optimization/88253] Inlining of function incorrectly deletes volatile register access when using XOR in avr-gcc
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88253 --- Comment #6 from Senthil Kumar Selvaraj --- Author: saaadhu Date: Mon Dec 17 12:07:26 2018 New Revision: 267199 URL: https://gcc.gnu.org/viewcvs?rev=267199=gcc=rev Log: 2018-12-17 Senthil Kumar Selvaraj Backport from trunk 2018-12-17 Senthil Kumar Selvaraj PR rtl-optimization/88253 * combine.c (combine_simplify_rtx): Test for side-effects before substituting by zero. 2018-12-17 Senthil Kumar Selvaraj Backport from trunk 2018-12-17 Senthil Kumar Selvaraj PR rtl-optimization/88253 * gcc.target/avr/pr88253.c: New test. Added: branches/gcc-8-branch/gcc/testsuite/gcc.target/avr/pr88253.c Modified: branches/gcc-8-branch/gcc/ChangeLog branches/gcc-8-branch/gcc/combine.c branches/gcc-8-branch/gcc/testsuite/ChangeLog
[Bug rtl-optimization/88253] Inlining of function incorrectly deletes volatile register access when using XOR in avr-gcc
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88253 --- Comment #5 from Senthil Kumar Selvaraj --- Author: saaadhu Date: Mon Dec 17 10:50:54 2018 New Revision: 267198 URL: https://gcc.gnu.org/viewcvs?rev=267198=gcc=rev Log: Fix PR 88253 gcc/ChangeLog: PR rtl-optimization/88253 * combine.c (combine_simplify_rtx): Test for side-effects before substituting by zero. gcc/testsuite/ChangeLog: PR rtl-optimization/88253 * gcc.target/avr/pr88253.c: New test. Added: trunk/gcc/testsuite/gcc.target/avr/pr88253.c Modified: trunk/gcc/ChangeLog trunk/gcc/combine.c trunk/gcc/testsuite/ChangeLog
[Bug rtl-optimization/88253] Inlining of function incorrectly deletes volatile register access when using XOR in avr-gcc
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88253 Senthil Kumar Selvaraj changed: What|Removed |Added CC||saaadhu at gcc dot gnu.org --- Comment #4 from Senthil Kumar Selvaraj --- Oh shoot, just sent https://gcc.gnu.org/ml/gcc-patches/2018-12/msg01028.html :)
[Bug rtl-optimization/88253] Inlining of function incorrectly deletes volatile register access when using XOR in avr-gcc
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88253 Segher Boessenkool changed: What|Removed |Added Target|avr |avr-*-* Status|UNCONFIRMED |ASSIGNED Last reconfirmed||2018-12-14 CC||segher at gcc dot gnu.org Host|Macos, Windows | Assignee|unassigned at gcc dot gnu.org |segher at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #3 from Segher Boessenkool --- Mine. I have a patch.
[Bug rtl-optimization/88253] Inlining of function incorrectly deletes volatile register access when using XOR in avr-gcc
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88253 --- Comment #2 from William Westfield --- I did say that it still happens with 8.1... However, the 5.4.0 version is the latest version supported by the vendor.
[Bug rtl-optimization/88253] Inlining of function incorrectly deletes volatile register access when using XOR in avr-gcc
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88253 --- Comment #1 from Richard Biener --- Note GCC 5 is out of support, please see if you can reproduce this with a newer version (GCC 7 and up).
