obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 90 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.dg/pr35635.c b/gcc/testsuite/gcc.dg/pr35635.c
new file mode 100644
index 000000000..45d10a67b
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr35635.c
@@ -0,0 +1,90 @@
+/* PR 35635 */
+/* { dg-do compile } */
+/* { dg-options "-Wconversion -Wsign-conversion" } */
+
+struct unsigned_bit {
+  unsigned int x:1;
+} unsigned_bit;
+struct signed_bit {
+  int x:1;
+} signed_bit;
+int bar;
+int bar2;
+
+void func1()
+{
+  /* The result of boolean operators fits in unsiged int:1, thus do
+     not warn.  */
+  unsigned_bit.x = (bar != 0); /* { dg-bogus "conversion" } */
+  unsigned_bit.x = (bar == 0); /* { dg-bogus "conversion" } */
+  unsigned_bit.x = (bar <= 0); /* { dg-bogus "conversion" } */
+  unsigned_bit.x = (bar >= 0); /* { dg-bogus "conversion" } */
+  unsigned_bit.x = (bar < 0);  /* { dg-bogus "conversion" } */
+  unsigned_bit.x = (bar > 0);  /* { dg-bogus "conversion" } */
+  unsigned_bit.x = !bar;       /* { dg-bogus "conversion" } */
+  unsigned_bit.x = (bar || bar2); /* { dg-bogus "conversion" } */
+  unsigned_bit.x = (bar && bar2); /* { dg-bogus "conversion" } */
+
+  /* Both branches of ? fit in the destination, thus do not warn.  */
+  unsigned_bit.x = bar != 0 ? 1 : 0; /* { dg-bogus "conversion" } */
+  unsigned_bit.x = bar != 0 ? 1.0 : 0.0;  /* { dg-bogus "conversion" } */
+
+  /* At least one branch of ? does not fit in the destination, thus
+     warn.  */
+  unsigned_bit.x = bar != 0 ? 2 : 0; /* { dg-warning "conversion" } */
+  unsigned_bit.x = bar != 0 ? 0 : -1; /* { dg-warning "negative integer implicitly converted to unsigned type" } */
+}
+
+void func2()
+{
+  signed char schar_x;
+
+  /* Both branches of ? fit in the destination, thus do not warn.  */
+  schar_x = bar != 0 ? 1 : 0; /* { dg-bogus "conversion" } */
+  schar_x = bar != 0 ? 2.0 : 10; /* { dg-bogus "conversion" } */
+
+  /* At least one branch of ? does not fit in the destination, thus
+     warn.  */
+  schar_x = bar != 0 ? 2.1 : 10; /* { dg-warning "conversion" } */
+  schar_x = bar != 0 ? (signed char) 1024: -1024; /* { dg-warning "conversion" } */
+}
+
+
+
+void func3()
+{
+  unsigned char uchar_x;
+
+  /* Both branches of ? fit in the destination, thus do not warn.  */
+  uchar_x = bar != 0 ? 1 : 0;
+  uchar_x = bar != 0 ? 2.0 : 10;
+
+  /* At least one branch of ? does not fit in the destination, thus
+     warn.  */
+  uchar_x = bar != 0 ? 2.1 : 10; /* { dg-warning "conversion" } */
+  uchar_x = bar != 0 
+    ? (unsigned char) 1024 
+    : -1; /* { dg-warning "negative integer implicitly converted to unsigned type" } */
+}
+
+void func4()
+{
+  signed_bit.x = -1; /* { dg-bogus "conversion" } */
+  signed_bit.x = bar != 0 ? -1.0 : 0.0;  /* { dg-bogus "conversion" } */
+  signed_bit.x = bar != 0 ? -1 : 0; /* { dg-bogus "conversion" } */
+
+  
+  signed_bit.x = 1;          /* { dg-warning "conversion" } */
+  signed_bit.x = (bar != 0); /* { dg-warning "conversion" } */
+  signed_bit.x = (bar == 0); /* { dg-warning "conversion" } */
+  signed_bit.x = (bar <= 0); /* { dg-warning "conversion" } */
+  signed_bit.x = (bar >= 0); /* { dg-warning "conversion" } */
+  signed_bit.x = (bar < 0);  /* { dg-warning "conversion" } */
+  signed_bit.x = (bar > 0);  /* { dg-warning "conversion" } */
+  signed_bit.x = !bar;       /* { dg-warning "conversion" } */
+  signed_bit.x = (bar || bar2); /* { dg-warning "conversion" } */
+  signed_bit.x = (bar && bar2); /* { dg-warning "conversion" } */
+  signed_bit.x = bar != 0 ? 1 : 0; /* { dg-warning "conversion" } */
+  signed_bit.x = bar != 0 ? 2 : 0; /* { dg-warning "conversion" } */
+}
+