From 61b42179a44ed24837ddaf63c096048fdec22f6b Mon Sep 17 00:00:00 2001 From: James E Wilson Date: Fri, 18 Feb 2005 23:01:33 +0000 Subject: [PATCH] re PR tree-optimization/18977 (LAPACK test xeigtsts segfaults with optimization) PR tree-optimization/18977 * gcc.c-torture/execute/loop-ivopts-1.c: New testcase. From-SVN: r95238 --- gcc/testsuite/ChangeLog | 5 ++++ .../gcc.c-torture/execute/loop-ivopts-1.c | 30 +++++++++++++++++++ 2 files changed, 35 insertions(+) create mode 100644 gcc/testsuite/gcc.c-torture/execute/loop-ivopts-1.c diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index ecdc105c735..4562225816f 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2005-02-18 James E Wilson + + PR tree-optimization/18977 + * gcc.c-torture/execute/loop-ivopts-1.c: New testcase. + 2005-02-18 Ulrich Weigand PR target/20054 diff --git a/gcc/testsuite/gcc.c-torture/execute/loop-ivopts-1.c b/gcc/testsuite/gcc.c-torture/execute/loop-ivopts-1.c new file mode 100644 index 00000000000..13396fbf0da --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/loop-ivopts-1.c @@ -0,0 +1,30 @@ +/* From PR 18977. */ +void foo(float * x); + +int main() +{ + float x[4]; + foo (x); + return 0; +} + +void foo (float *x) +{ + int i,j,k; + float temp; + static float t16[16]={1.,2.,3.,4.,5.,6.,7.,8.,9., + 10.,11.,12.,13.,14.,15.,16.}; + static float tmp[4]={0.,0.,0.,0.}; + + for (i=0; i<4; i++) { + k = 3 - i; + temp = t16[5*k]; + for(j=k+1; j<4; j++) { + tmp[k] = t16[k+ j*4] * temp; + } + } + x[0] = tmp[0]; + x[1] = tmp[1]; + x[2] = tmp[2]; + x[3] = tmp[3]; +} -- 2.30.2