The code below, when compiled by "gcc -O3 -msse", gives the following error (same code compiles fine in gcc 3.3.5):
bug2.c: In function 'main': bug2.c:17: error: Invalid reference prefix. &fooD.1292; bug2.c:17: internal compiler error: verify_stmts failed. Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. Environment: System: Linux fftw.org 2.6.3-1-686-smp #2 SMP Tue Feb 24 20:29:08 EST 2004 i686 GNU/Linux Architecture: i686 host: i686-pc-linux-gnu build: i686-pc-linux-gnu target: i686-pc-linux-gnu configured with: ../configure --prefix=/home/stevenj/gcc4 How-To-Repeat: Compile the following code with 'gcc -O3 -msse -o bug2 bug2.c' typedef float V __attribute__ ((vector_size (16))); union fvec { float f[4]; V v; }; typedef unsigned int uintptr_t; #define ALIGNMENT 8 #define TAINT_BIT 1 #define PTRINT(p) ((uintptr_t)(p)) #define ALIGNED(p) \ (((PTRINT(p) % ALIGNMENT) == 0) && !(PTRINT(p) & TAINT_BIT)) const union fvec foo = {{-0.0, 0.0, -0.0, 0.0}}; int main(void) { return !ALIGNED(&foo); } -- Summary: ICE on simple SSE code (works in gcc 3.3) Product: gcc Version: 4.0.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: stevenj at fftw dot org CC: gcc-bugs at gcc dot gnu dot org GCC build triplet: i686-pc-linux-gnu GCC host triplet: i686-pc-linux-gnu GCC target triplet: i686-pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19858
