From 6f7e9e94497e08e6efba3b3793fea5eb7f17ad8e Mon Sep 17 00:00:00 2001
From: Nathan Sidwell <nathan@codesourcery.com>
Date: Tue, 1 Oct 2002 19:13:12 +0000
Subject: [PATCH] jcf-dump.c (print_constant, [...]): Don't fall foul of
type-based aliasing.
* jcf-dump.c (print_constant, case CONSTANT_float): Don't fall
foul of type-based aliasing.
From-SVN: r57699
---
gcc/java/ChangeLog | 5 +++++
gcc/java/jcf-dump.c | 14 +++++++++++---
2 files changed, 16 insertions(+), 3 deletions(-)
diff --git a/gcc/java/ChangeLog b/gcc/java/ChangeLog
index 9b2ad12d790a..07c53ec1ccfa 100644
--- a/gcc/java/ChangeLog
+++ b/gcc/java/ChangeLog
@@ -1,3 +1,8 @@
+2002-10-01 Nathan Sidwell <nathan@codesourcery.com>
+
+ * jcf-dump.c (print_constant, case CONSTANT_float): Don't fall
+ foul of type-based aliasing.
+
2002-09-30 Anthony Green <green@redhat.com>
* gcj.texi (Invoking jv-scan): Fix texinfo.
diff --git a/gcc/java/jcf-dump.c b/gcc/java/jcf-dump.c
index 13a177df066d..2824a6b3cc96 100644
--- a/gcc/java/jcf-dump.c
+++ b/gcc/java/jcf-dump.c
@@ -504,10 +504,18 @@ DEFUN(print_constant, (out, jcf, index, verbosity),
break;
case CONSTANT_Float:
{
- jfloat fnum = JPOOL_FLOAT (jcf, index);
- fprintf (out, "%s%.10g", verbosity > 0 ? "Float " : "", (double) fnum);
+ union
+ {
+ jfloat f;
+ int32 i;
+ } pun;
+
+ pun.f = JPOOL_FLOAT (jcf, index);
+ fprintf (out, "%s%.10g",
+ verbosity > 0 ? "Float " : "", (double) pun.f);
if (verbosity > 1)
- fprintf (out, ", bits = 0x%08lx", (long) (* (int32 *) &fnum));
+ fprintf (out, ", bits = 0x%08lx", (long) pun.i);
+
break;
}
case CONSTANT_Double:
--
GitLab