[Bug middle-end/111574] [14 Regression] Illegal instruction with "-O3 -fno-toplevel-reorder -fno-tree-bit-ccp -fno-tree-dce"
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111574 --- Comment #6 from Andrew Pinski --- What is happening is: ``` if (_1 != 0) goto ; [INV] else goto ; [INV] : _28 = (uint8_t) _1; // predicted unlikely by early return (on trees) predictor. goto ; [INV] : _7 = func_34 (0); : # _17 = PHI <_28(6), 0(7)> ``` Is being converted into: ``` if (_1 != 0) goto ; [INV] else goto ; [INV] : // predicted unlikely by early return (on trees) predictor. goto ; [INV] : _7 = func_34 (0); : # _new = PHI <_1(6), 0(7)> _17 = (uint8_t) _new; ``` And then incorrectly into: ``` _7 = func_34 (0); _17 = (uint8_t) _1; ``` Removing the if statement. The same way as the other bug is being incorrectly handled too.
[Bug middle-end/111574] [14 Regression] Illegal instruction with "-O3 -fno-toplevel-reorder -fno-tree-bit-ccp -fno-tree-dce"
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111574 Andrew Pinski changed: What|Removed |Added Resolution|--- |DUPLICATE Status|UNCONFIRMED |RESOLVED --- Comment #5 from Andrew Pinski --- Dup of bug 111469. That is the patch which fixes PR 111469 will fix this one too. *** This bug has been marked as a duplicate of bug 111469 ***
[Bug middle-end/111574] [14 Regression] Illegal instruction with "-O3 -fno-toplevel-reorder -fno-tree-bit-ccp -fno-tree-dce"
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111574 Andrew Pinski changed: What|Removed |Added CC||pinskia at gcc dot gnu.org --- Comment #4 from Andrew Pinski --- This is another phiopt issue ...