[PATCH] Remove undefined behaviour from hppa backend

* config/pa/pa.h (MIN_LEGIT_64BIT_CONST_INT: Avoid undefined behavior. From-SVN: r228021

[PATCH] Remove undefined behaviour from hppa backend
* config/pa/pa.h (MIN_LEGIT_64BIT_CONST_INT: Avoid undefined behavior. From-SVN: r228021
50fa47d9 · Jeff Law · Jeff Law · 6b333269 · 50fa47d9 · 50fa47d9
Commit 50fa47d9 authored Sep 22, 2015 by Jeff Law Committed by Jeff Law Sep 22, 2015
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gcc/ChangeLog
+5 -0

gcc/config/pa/pa.h
+2 -1

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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
+2015-09-22  Jeff Law  <law@redhat.com>
+
+	* config/pa/pa.h (MIN_LEGIT_64BIT_CONST_INT: Avoid undefined
+	behavior.
+
 2015-09-22  Nathan Sidwell  <nathan@codesourcery.com>

 	* doc/invoke.texi  (-Wmultiple-inheritance, -Wvirtual-inheritance,
--- a/gcc/config/pa/pa.h
+++ b/gcc/config/pa/pa.h
@@ -814,7 +814,8 @@ extern int may_call_alloca;
   this range are forced to the constant pool prior to reload.  */

 #define MAX_LEGIT_64BIT_CONST_INT ((HOST_WIDE_INT) 32 << 31)
-#define MIN_LEGIT_64BIT_CONST_INT ((HOST_WIDE_INT) -32 << 31)
+#define MIN_LEGIT_64BIT_CONST_INT \
+  ((HOST_WIDE_INT)((unsigned HOST_WIDE_INT) -32 << 31))
 #define LEGITIMATE_64BIT_CONST_INT_P(X) \
  ((X) >= MIN_LEGIT_64BIT_CONST_INT && (X) < MAX_LEGIT_64BIT_CONST_INT)