[Bug target/55522] -funsafe-math-optimizations is unexpectedly harmful, especially w/ -shared

2022-09-08 Thread luto at kernel dot org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55522 --- Comment #16 from Andy Lutomirski --- (In reply to Andrew Pinski from comment #13) > Patient: Doctor it hurts when I do this. > Doctor: then don't do that and if you read the instructions I gave you I > told you I would hurt this way. I

[Bug target/98997] Linking mismatched -fcf-protection objects generates incorrect code

2021-02-08 Thread luto at kernel dot org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98997 --- Comment #4 from Andy Lutomirski --- I should add: on brief inspection, that patch looks like an ABI break for -fcf-protection=none

[Bug target/98997] Linking mismatched -fcf-protection objects generates incorrect code

2021-02-08 Thread luto at kernel dot org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98997 --- Comment #3 from Andy Lutomirski --- What is -fcf-protection=stack actually supposed to do as compared to -fcf-protection=none? Is it valid to run code compiled with -fcf-protection=none with SHSTK enabled? If so, then I wonder why

[Bug target/98997] New: Linking mismatched -fcf-protection objects generates incorrect code

2021-02-07 Thread luto at kernel dot org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98997 Bug ID: 98997 Summary: Linking mismatched -fcf-protection objects generates incorrect code Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal

[Bug rtl-optimization/48877] Inline asm for rdtsc generates silly code

2020-12-25 Thread luto at kernel dot org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48877 Andy Lutomirski changed: What|Removed |Added Resolution|--- |FIXED Status|NEW