sdcc-3.9.0 fork implementing GNU assembler syntax

This fork aims to provide better support for stm8-binutils

1 files changed, 50 insertions, 0 deletions

diff --git a/support/regression/tests/bug-2197.c b/support/regression/tests/bug-2197.c
new file mode 100644
index 0000000..be2a384
--- /dev/null
+++ b/support/regression/tests/bug-2197.c
@@ -0,0 +1,50 @@
+/*
+   bug-2197.c - originally part of the tests from the execute part of the gcc torture suite (see 20020503-1.c).
+   Heavily modified to reproduce the underlying issue of bug 2197 on multiple architectures.
+ */
+
+#include <testfwk.h>
+
+#if defined(__SDCC_MODEL_SMALL) || defined(__SDCC_MODEL_MEDIUM) || \
+    (defined(__SDCC_mcs51) && defined(__SDCC_STACK_AUTO)) || defined(__SDCC_pdk15)
+#define N	32
+#else
+#define N	128
+#endif
+
+/* PR 6534 */
+/* GCSE unified the two i<0 tests, but if-conversion to ui=abs(i)
+   inserted the code at the wrong place corrupting the i<0 test.  */
+
+static char *
+inttostr (long i, char buf[N])
+{
+  unsigned long ui = i;
+  char *p = buf + (N-1);
+  *p = '\0';
+  if (i < 0)
+    ui = -ui;
+  do
+    *--p = '0' + ui % 10;
+  while ((ui /= 10) != 0);
+  if (i < 0)
+    *--p = '-';
+  return p;
+}
+
+void
+testTortureExecute (void)
+{
+#ifndef __SDCC_pdk14 // Lack of memory
+  char buf[N], *p;
+
+  p = inttostr (-1, buf);
+
+  ASSERT(p[0] == '-');
+  ASSERT(p[1] == '1');
+  ASSERT(p[2] == '\0');
+  ASSERT(p == buf + (N-1) - 2);
+
+  return;
+#endif
+}