https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107734
--- Comment #6 from David Binderman ---
I am trying a bisect with git hash b4fca4fc70dc76cf.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107734
--- Comment #5 from David Binderman ---
I have reduced one of the test cases downto this code:
float val1f[][2], val2f[][2], chkf[][2];
foof_i;
foof() {
int j;
foof_i = 0;
for (; foof_i < 8; foof_i++) {
float tmp = val1f[foof_i][j] *
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107734
--- Comment #4 from David Binderman ---
A third:
./gcc.target/i386/pr61403.c
==749959== Conditional jump or move depends on uninitialised value(s)
==749959==at 0x11DFAE7: bitmap_set_bit (sbitmap.h:137)
==749959==by 0x11DFAE7:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107734
--- Comment #3 from David Binderman ---
Another test case:
./gcc.target/i386/pr53366-2.c
==41== Conditional jump or move depends on uninitialised value(s)
==41==at 0x11DFAE7: bitmap_set_bit (sbitmap.h:137)
==41==by
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107734
--- Comment #2 from David Binderman ---
git blame says
dc95e1e970 (Hongyu Wang 2022-01-17 13:01:51 +0800 8292)if
(!bitmap_set_bit (seen, sel[i].to_constant ()))
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107734
--- Comment #1 from David Binderman ---
The valgrind problem doesn't seem to occur with git hash 05432288d4e56055,
dated 20221113, so the bug is recent.
I used git hash 2b2f2ee49a33419f for today's build.
