Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/store-motion-fgcse-sm.c @ 144:8f4e72ab4e11
fix segmentation fault caused by nothing next cur_op to end
author | Takahiro SHIMIZU <anatofuz@cr.ie.u-ryukyu.ac.jp> |
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date | Sun, 23 Dec 2018 21:23:56 +0900 |
parents | 04ced10e8804 |
children |
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/* { dg-do run } */ /* { dg-options "-O2 -ftree-pre -fno-tree-loop-im -fgcse-sm -fdump-rtl-store_motion" } */ /* tree-pre moves the *sum load out of the loop. ftree-loop-im moves the *sum store out of the loop, so we disable it, to allow fgcse-sm to do it instead. */ #include <stdlib.h> void __attribute__((noinline)) f (unsigned int *__restrict__ a, unsigned int *__restrict__ sum, unsigned int n) { unsigned int i; for (i = 0; i < n; ++i) *sum += a[i]; } int main () { unsigned int a[] = { 1, 10, 100 }; unsigned sum = 1000; f (a, &sum, 3); if (sum != 1111) abort (); return 0; } /* Check that -fgcse-sm did something for f. */ /* { dg-final { scan-rtl-dump "STORE_MOTION of f, .* basic blocks, 1 insns deleted, 1 insns created" "store_motion" } } */