From ac88396b5e3bf22b4013339e7980a748d88eddf7 Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Wed, 3 Aug 2011 14:44:54 +0000 Subject: [PATCH] Add a testcase for PR middle-end/47383. 2011-08-03 H.J. Lu PR middle-end/47383 * gcc.dg/torture/pr47383.c: Likewise. From-SVN: r177277 --- gcc/testsuite/ChangeLog | 5 +++++ gcc/testsuite/gcc.dg/torture/pr47383.c | 30 ++++++++++++++++++++++++++ 2 files changed, 35 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/torture/pr47383.c diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 2dc9a1dd4e4..a157259099e 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2011-08-03 H.J. Lu + + PR middle-end/47383 + * gcc.dg/torture/pr47383.c: Likewise. + 2011-08-03 Arnaud Charlet * gnat.dg/specs/debug1.ads: Add missing -margs switch. diff --git a/gcc/testsuite/gcc.dg/torture/pr47383.c b/gcc/testsuite/gcc.dg/torture/pr47383.c new file mode 100644 index 00000000000..ae8d67051d4 --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr47383.c @@ -0,0 +1,30 @@ +/* { dg-do run } */ + +static int heap[2*(256 +1+29)+1]; +static int heap_len; +static int heap_max; +void +__attribute__ ((noinline)) +foo (int elems) +{ + int n, m; + int max_code = -1; + int node = elems; + heap_len = 0, heap_max = (2*(256 +1+29)+1); + for (n = 0; n < elems; n++) + heap[++heap_len] = max_code = n; + do { + n = heap[1]; + heap[1] = heap[heap_len--]; + m = heap[1]; + heap[--heap_max] = n; + heap[--heap_max] = m; + } while (heap_len >= 2); +} + +int +main () +{ + foo (286); + return 0; +} -- 2.30.2