https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85156
Bug ID: 85156
Summary: -O1 -g internal compiler error: gimplification failed
Product: gcc
Version: 8.0.1
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: vegard.nossum at oracle dot com
CC: webrown.cpp at gmail dot com
Target Milestone: ---
Input (valid code AFAICT):
int a, b;
int f()
{
return __builtin_expect(a ? b != 0 : 0, ({ 1; }));
}
Output:
$ cc1plus -O1 -g
int f()
Analyzing compilation unit
gimplification failed:
<statement_list 0x7f0773a108c0
type <void_type 0x7f07738bbf18 void VOID
align:8 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type
0x7f07738bbf18
pointer_to_this <pointer_type 0x7f07738c30a8>>
head (nil) tail (nil) stmts
>
output/gimplification-failed.cc:5:26: internal compiler error: gimplification
failed
return __builtin_expect(a ? b != 0 : 0, ({ 1; }));
~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
0x222d153 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/home/vegard/git/gcc/gcc/gimplify.c:12395
0x22252a5 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/home/vegard/git/gcc/gcc/gimplify.c:11377
0x22584ec gimplify_expr
/home/vegard/git/gcc/gcc/gimplify.c:12432
0x225de68 gimplify_arg(tree_node**, gimple**, unsigned int, bool)
/home/vegard/git/gcc/gcc/gimplify.c:3179
0x225fe07 gimplify_call_expr
/home/vegard/git/gcc/gcc/gimplify.c:3385
0x22264bf gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/home/vegard/git/gcc/gcc/gimplify.c:11408
0x2224be2 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/home/vegard/git/gcc/gcc/gimplify.c:12161
0x227b353 gimplify_cond_expr
/home/vegard/git/gcc/gcc/gimplify.c:4066
0x222753a gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/home/vegard/git/gcc/gcc/gimplify.c:11393
0x2234081 gimplify_stmt(tree_node**, gimple**)
/home/vegard/git/gcc/gcc/gimplify.c:6660
0x22278eb gimplify_statement_list
/home/vegard/git/gcc/gcc/gimplify.c:1767
0x22278eb gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/home/vegard/git/gcc/gcc/gimplify.c:11865
0x2234081 gimplify_stmt(tree_node**, gimple**)
/home/vegard/git/gcc/gcc/gimplify.c:6660
0x227c1bc gimplify_cond_expr
/home/vegard/git/gcc/gcc/gimplify.c:4054
0x222753a gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/home/vegard/git/gcc/gcc/gimplify.c:11393
0x2234081 gimplify_stmt(tree_node**, gimple**)
/home/vegard/git/gcc/gcc/gimplify.c:6660
0x227a9ce gimplify_cond_expr
/home/vegard/git/gcc/gcc/gimplify.c:4025
0x222753a gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/home/vegard/git/gcc/gcc/gimplify.c:11393
0x2281d9c gimplify_modify_expr
/home/vegard/git/gcc/gcc/gimplify.c:5628
0x2226d66 gimplify_expr(tree_node**, gimple**, gimple**, bool (*)(tree_node*),
int)
/home/vegard/git/gcc/gcc/gimplify.c:11437
Test case was minimised by C-Reduce, it seems both -O1 and -g are necessary for
the ICE. Clang is fine with it, and 7.3.0 seems fine with it as well.
