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Diffstat (limited to 'gcc/testsuite/gcc.dg/pr33673.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr33673.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr33673.c b/gcc/testsuite/gcc.dg/pr33673.c new file mode 100644 index 000000000..d238d112c --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr33673.c @@ -0,0 +1,43 @@ +/* PR rtl-optimization/33673 */ +/* { dg-do compile } */ +/* { dg-options "-Os -fno-forward-propagate -fno-guess-branch-probability -fno-move-loop-invariants -fno-tree-dominator-opts -fno-tree-loop-optimize" } */ + +extern int f1 (int); +extern int f2 (int); + +extern int *a; + +static void +find_reg (int n) +{ + int i, pass; + unsigned int used[2], used1[2]; + + int c = n ? f1 (a[1]) : f2 (a[1]); + + for (i = 64, pass = 0; pass <= 1 && i >= 64; pass++) + { + if (pass == 1) + { + unsigned int *scan_tp_ = used; + unsigned int *scan_fp_ = used1; + int j; + for (j = 0; j < 2; j++) + *scan_tp_++ = *scan_fp_++; + } + for (i = 0; i < 64; i++) + { + int regno = i; + if (n == 0) + if (i == regno) + break; + } + } +} + +void +global_alloc () +{ + find_reg (0); + find_reg (1); +} |