[Bug target/107841] Incorrect generation of the function's epilogue code when there is a _builtin_alloca call.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107841 pkoning at gcc dot gnu.org changed: What|Removed |Added Resolution|--- |FIXED Status|ASSIGNED|RESOLVED --- Comment #4 from pkoning at gcc dot gnu.org --- Fixed by the patch from Mikael Petterson.
[Bug target/107841] Incorrect generation of the function's epilogue code when there is a _builtin_alloca call.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107841 --- Comment #3 from CVS Commits --- The master branch has been updated by Paul Koning : https://gcc.gnu.org/g:8f1a26ee259f72e42405b9c5f2b161042ec4014b commit r14-2509-g8f1a26ee259f72e42405b9c5f2b161042ec4014b Author: Mikael Pettersson Date: Thu Jul 13 16:06:39 2023 -0400 pdp11: Fix epilogue generation [PR107841] gcc/ PR target/107841 * config/pdp11/pdp11.cc (pdp11_expand_epilogue): Also deallocate alloca-only frame. gcc/testsuite/ PR target/107841 * gcc.target/pdp11/pr107841.c: New test.
[Bug target/107841] Incorrect generation of the function's epilogue code when there is a _builtin_alloca call.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107841 pkoning at gcc dot gnu.org changed: What|Removed |Added Last reconfirmed||2023-07-13 Status|UNCONFIRMED |ASSIGNED CC||pkoning at gcc dot gnu.org Ever confirmed|0 |1
[Bug target/107841] Incorrect generation of the function's epilogue code when there is a _builtin_alloca call.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107841
--- Comment #2 from Alexander ---
Source code:
void qq(int a) {
char *s = alloca(128);
sprintf(s,"qq %d",3);
}
Generated code:
040c <_qq>:
40c: 1166mov r5, -(sp)
40e: 1185mov sp, r5
410: 65c6 ff80 add $-200, sp
414: 1180mov sp, r0
416: 15e6 0003 mov $3, -(sp)
41a: 15e6 1868 mov $14150, -(sp)
41e: 1026mov r0, -(sp)
420: 09f7 0326 jsr pc, 74a <_sprintf>
424: 65c6 0006 add $6, sp
428: 1585mov (sp)+, r5
42a: 0087rts pc
The command "mov r5,sp" should be at the address 424
[Bug target/107841] Incorrect generation of the function's epilogue code when there is a _builtin_alloca call.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107841 --- Comment #1 from Andrew Pinski --- Patches are submitted to gcc-patches@ after reading https://gcc.gnu.org/contribute.html
