From c1e822d590c3841514118cc79284e466ac31125f Mon Sep 17 00:00:00 2001 From: Ira Rosen Date: Mon, 14 Jun 2010 12:22:13 +0000 Subject: re PR tree-optimization/44507 (vectorization ANDs array elements together incorrectly) PR tree-optimization/44507 * tree-vect-loop.c (get_initial_def_for_reduction): Use -1 to build initial vector for BIT_AND_EXPR. * tree-vect-slp.c (vect_get_constant_vectors): Likewise. From-SVN: r160727 --- gcc/testsuite/gcc.dg/vect/pr44507.c | 55 +++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/vect/pr44507.c (limited to 'gcc/testsuite/gcc.dg') diff --git a/gcc/testsuite/gcc.dg/vect/pr44507.c b/gcc/testsuite/gcc.dg/vect/pr44507.c new file mode 100644 index 00000000000..e53ba30cf45 --- /dev/null +++ b/gcc/testsuite/gcc.dg/vect/pr44507.c @@ -0,0 +1,55 @@ +/* { dg-require-effective-target vect_int } */ + +#include +#include "tree-vect.h" + +int seeIf256ByteArrayIsConstant( + unsigned char *pArray) +{ + int index; + unsigned int curVal, orVal, andVal; + int bytesAreEqual = 0; + + if (pArray != 0) + { + for (index = 0, orVal = 0, andVal = 0xFFFFFFFF; + index < 64; + index += (int)sizeof(unsigned int)) + { + curVal = *((unsigned long *)(&pArray[index])); + orVal = orVal | curVal; + andVal = andVal & curVal; + } + + if (!((orVal == andVal) + && ((orVal >> 8) == (andVal & 0x00FFFFFF)))) + abort (); + } + + return 0; +} + + +int main(int argc, char** argv) +{ + unsigned char array1[64] = { + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + }; + + argv = argv; + argc = argc; + + check_vect (); + + return seeIf256ByteArrayIsConstant(&array1[0]); +} + +/* { dg-final { cleanup-tree-dump "vect" } } */ + -- cgit v1.2.1