https://bugzilla.gdcproject.org/show_bug.cgi?id=264
Bug ID: 264
Summary: [ICE] (update_equiv_regs) ira.c:3425: Assertion failed
gcc_assert (REG_P (dest));
Product: GDC
Version: development
Hardware: ARM
OS: All
Status: NEW
Severity: normal
Priority: Normal
Component: gdc
Assignee: ibuc...@gdcproject.org
Reporter: ibuc...@gdcproject.org
Backtrace on aarch64-linux-gnu gdc cross compiler:
---
during RTL pass: ira
testv.d: In function 'test1':
testv.d:13:1: internal compiler error: in update_equiv_regs, at ira.c:3425
0xa91413 update_equiv_regs
/buildbot/aarch64-linux-gnu/build/gcc/ira.c:3425
0xa96de0 ira
/buildbot/aarch64-linux-gnu/build/gcc/ira.c:5226
0xa96de0 execute
/buildbot/aarch64-linux-gnu/build/gcc/ira.c:5581
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://bugzilla.gdcproject.org> for instructions.
---
Few examples, all seem to ICE because of passing static arrays as a dynamic
array parameter, or more specifically, when the original array is in data
segment.
---
bool bt10715(uint[] ary)
{
return !ary; // uses bt
}
void test10715()
{
static uint[2] a1;
if (bt10715(a1))
assert(0);
}
---
struct Test9386
{
static char[25] op;
string sop()
{
return cast(string)op;
}
}
---
void foo34(int[])
{
static int[5] x;
foo34(x);
}
---
void foo16(bool[])
{
}
void test16()
{
static bool[16] b1;
foo16(b1);
}
---
struct Data15664A
{
int[][2] b;
}
Data15664A d15664a1 = {};
void test15664()
{
assert(d15664a1.b == []);
}
---
int sum(...)
{
int s;
return s;
}
void test1()
{
static int[3] a;
sum(a);
}
---
Dump of one of the tests:
---
Original:
foo34 (struct _param_0)
{
foo34 ({.length=5, .ptr=(int *) &x});
}
Gimple:
foo34 (struct _param_0)
{
struct D.2609;
D.2609.length = 5;
D.2609.ptr = &x;
foo34 (D.2609);
}
---
This ICE only happens if compiling without optimizations.
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