From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001
From: upstream source tree <ports@midipix.org>
Date: Sun, 15 Mar 2015 20:14:05 -0400
Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; 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.
---
 gcc/testsuite/gcc.dg/compare2.c | 58 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 gcc/testsuite/gcc.dg/compare2.c

(limited to 'gcc/testsuite/gcc.dg/compare2.c')

diff --git a/gcc/testsuite/gcc.dg/compare2.c b/gcc/testsuite/gcc.dg/compare2.c
new file mode 100644
index 000000000..0625eb9c3
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/compare2.c
@@ -0,0 +1,58 @@
+/* Test for a bogus warning on comparison between signed and unsigned.
+   This was inspired by code in gcc. */
+
+/* { dg-do compile } */
+/* { dg-options "-Wsign-compare" } */
+
+int tf = 1;
+
+void f(int x, unsigned int y)
+{
+  /* ?: branches are constants.  */
+  x > (tf?64:128); /* { dg-bogus "signed and unsigned" "case 1" } */
+  y > (tf?64:128); /* { dg-bogus "signed and unsigned" "case 2" } */
+
+  /* ?: branches are (recursively) constants.  */
+  x > (tf?64:(tf?128:256)); /* { dg-bogus "signed and unsigned" "case 3" } */
+  y > (tf?64:(tf?128:256)); /* { dg-bogus "signed and unsigned" "case 4" } */
+
+  /* ?: branches are signed constants.  */
+  x > (tf?64:-1); /* { dg-bogus "signed and unsigned" "case 5" } */
+  y > (tf?64:-1); /* { dg-warning "signed and unsigned" "case 6" } */
+
+  /* ?: branches are (recursively) signed constants.  */
+  x > (tf?64:(tf?128:-1)); /* { dg-bogus "signed and unsigned" "case 7" } */
+  y > (tf?64:(tf?128:-1)); /* { dg-warning "signed and unsigned" "case 8" } */
+
+  /* Statement expression.  */
+  x > ({tf; 64;}); /* { dg-bogus "signed and unsigned" "case 9" } */
+  y > ({tf; 64;}); /* { dg-bogus "signed and unsigned" "case 10" } */
+
+  /* Statement expression with recursive ?: .  */
+  x > ({tf; tf?64:(tf?128:256);}); /* { dg-bogus "signed and unsigned" "case 11" } */
+  y > ({tf; tf?64:(tf?128:256);}); /* { dg-bogus "signed and unsigned" "case 12" } */
+
+  /* Statement expression with signed ?:.  */
+  x > ({tf; tf?64:-1;}); /* { dg-bogus "signed and unsigned" "case 13" } */
+  y > ({tf; tf?64:-1;}); /* { dg-warning "signed and unsigned" "case 14" } */
+
+  /* Statement expression with recursive signed ?:.  */
+  x > ({tf; tf?64:(tf?128:-1);}); /* { dg-bogus "signed and unsigned" "case 15" } */
+  y > ({tf; tf?64:(tf?128:-1);}); /* { dg-warning "signed and unsigned" "case 16" } */
+
+  /* ?: branches are constants.  */
+  tf ? x : (tf?64:32); /* { dg-bogus "conditional expression" "case 17" } */
+  tf ? y : (tf?64:32); /* { dg-bogus "conditional expression" "case 18" } */
+
+  /* ?: branches are signed constants.  */
+  tf ? x : (tf?64:-1); /* { dg-bogus "conditional expression" "case 19" } */
+  tf ? y : (tf?64:-1); /* { dg-warning "conditional expression" "case 20" } */
+
+  /* ?: branches are (recursively) constants.  */
+  tf ? x : (tf?64:(tf?128:256)); /* { dg-bogus "conditional expression" "case 21" } */
+  tf ? y : (tf?64:(tf?128:256)); /* { dg-bogus "conditional expression" "case 22" } */
+
+  /* ?: branches are (recursively) signed constants.  */
+  tf ? x : (tf?64:(tf?128:-1)); /* { dg-bogus "conditional expression" "case 23" } */
+  tf ? y : (tf?64:(tf?128:-1)); /* { dg-warning "conditional expression" "case 24" } */
+}
-- 
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