https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104140
Bug ID: 104140
Summary: [12 Regression] ICE verify_gimple failed: type
mismatch in binary expression since
r12-6434-g0752c75536e
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: belyshev at depni dot sinp.msu.ru
Target Milestone: ---
$ cat bug.c
int x;
unsigned u, v;
void f (void)
{
long long y = x;
u = y * v >> 32;
}
void g (void) { f (); }
$ gcc bug.c -S -O2 -march=rv32im -mabi=ilp32 # or: -march=rv32g -mabi=ilp32d
bug.c: In function 'g':
bug.c:8:6: error: type mismatch in binary expression
8 | void g (void) { f (); }
| ^
int
int
unsigned int
highparttmp_10 = x.0_2 h* v.1_4;
during GIMPLE pass: widening_mul
bug.c:8:6: internal compiler error: verify_gimple failed
...
Found during bootstrap on riscv32 when compiling attribs.c.
Bisected to r12-6434-g0752c75536e:
Author: Roger Sayle <[email protected]>
Date: Tue Jan 11 12:30:44 2022 +0000
Recognize MULT_HIGHPART_EXPR in tree-ssa-math-opts pass.
