| Summary: | [ICE] at cp/constexpr.c:2768 in initializing __vector in a loop | ||
|---|---|---|---|
| Product: | gcc | Reporter: | vincenzo Innocente <vincenzo.innocente> |
| Component: | c++ | Assignee: | Not yet assigned to anyone <unassigned> |
| Status: | RESOLVED FIXED | ||
| Severity: | normal | Keywords: | easyhack, ice-on-valid-code |
| Priority: | P3 | ||
| Version: | 6.0 | ||
| Target Milestone: | 7.0 | ||
| Host: | Target: | ||
| Build: | Known to work: | ||
| Known to fail: | Last reconfirmed: | 2015-11-25 00:00:00 | |
t88.cc: In function ‘float32x4_t foo(float32x4_t)’:
t88.cc:10:33: in constexpr expansion of ‘fill(1.0e+0f)’
t88.cc:10:37: internal compiler error: tree check: expected constructor, have vector_cst in cxx_eval_store_expression, at cp/constexpr.c:3051
constexpr float32x4_t v = fill(1.f);
^
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://www.cavium.com/support.html> for instructions.
This should not be hard to fix. Basically after:
ctx->values->get (object)
You convert VECTOR_CST back into a CONSTRUCTOR. Then the rest will work.
Author: paolo Date: Thu Nov 17 09:59:07 2016 New Revision: 242541 URL: https://gcc.gnu.org/viewcvs?rev=242541&root=gcc&view=rev Log: 2016-11-17 Paolo Carlini <paolo.carlini@oracle.com> PR c++/68180 * g++.dg/cpp1y/pr68180.C: New. Added: trunk/gcc/testsuite/g++.dg/cpp1y/pr68180.C Modified: trunk/gcc/testsuite/ChangeLog Author: jakub Date: Fri Nov 18 23:51:30 2016 New Revision: 242610 URL: https://gcc.gnu.org/viewcvs?rev=242610&root=gcc&view=rev Log: PR c++/68180 * g++.dg/cpp1y/pr68180.C: Add -Wno-psabi as dg-additional-options. Modified: trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/g++.dg/cpp1y/pr68180.C |
typedef float __attribute__( ( vector_size( 16 ) ) ) float32x4_t; constexpr float32x4_t fill(float x) { float32x4_t v{0}; constexpr auto vs = sizeof(v)/sizeof(v[0]); for (auto i=0U; i<vs; ++i) v[i]=i; return v+x; } float32x4_t foo(float32x4_t x) { constexpr float32x4_t v = fill(1.f); return x+v; } gcc version 6.0.0 20151028 (experimental) [trunk revision 229474] (GCC) ICE in c++ -O2 avxconst.cc -std=c++17 -S avxconst.cc: In function ‘float32x4_t foo(float32x4_t)’: avxconst.cc:10:33: in constexpr expansion of ‘fill(1.0e+0f)’ avxconst.cc:10:37: internal compiler error: tree check: expected constructor, have vector_cst in cxx_eval_store_expression, at cp/constexpr.c:2768 constexpr float32x4_t v = fill(1.f); ^ avxconst.cc:10:37: internal compiler error: Abort trap: 6 c++: internal compiler error: Abort trap: 6 (program cc1plus)