diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 6e4bac81ce3e..fa93489086cb 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2003-12-20  Andrew Pinski  <pinskia@gcc.gnu.org>
+            Matt Thomas  <matt@3am-software.com>
+
+	PR target/12749
+	* config/i386/i386.c (print_operand): Print only the first
+	8 characters of the float in hex.
+
 2003-12-20  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>
 
 	* pa.h (TRAMPOLINE_TEMPLATE): Shorten sequence when generating PA
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index a93d82ed0b9f..cb6ffda4b8d2 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -7457,7 +7457,7 @@ print_operand (FILE *file, rtx x, int code)
 
       if (ASSEMBLER_DIALECT == ASM_ATT)
 	putc ('$', file);
-      fprintf (file, "0x%lx", l);
+      fprintf (file, "0x%08lx", l);
     }
 
   /* These float cases don't actually occur as immediate operands.  */
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 25db32b36920..ccdbbe28eaa2 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2003-12-20  Andrew Pinski  <pinskia@gcc.gnu.org>
+
+	PR target/12749
+	* gcc.c-torture/compile/20031220-2.c: New test case.
+
 2003-12-20  Roger Sayle  <roger@eyesopen.com>
 
 	PR optimization/13031
diff --git a/gcc/testsuite/gcc.c-torture/compile/20031220-2.c b/gcc/testsuite/gcc.c-torture/compile/20031220-2.c
new file mode 100644
index 000000000000..45c82779400d
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/20031220-2.c
@@ -0,0 +1,44 @@
+/*  PR target/12749
+  Orgin: Matt Thomas <matt@3am-software.com>
+  This used to cause GCC to write out an instruction for i386 when using a L64 host
+  which gas could not handle because GCC would write a full 64bit hex string out. */
+
+
+float fabsf (float);
+typedef int __int32_t;
+typedef unsigned int __uint32_t;
+typedef union
+{
+  float value;
+  __uint32_t word;
+} ieee_float_shape_type;
+extern float __ieee754_expf (float);
+extern float __ieee754_sinhf (float);
+static const float one = 1.0, shuge = 1.0e37;
+float
+__ieee754_sinhf(float x)
+{
+        float t,w,h;
+        __int32_t ix,jx;
+        do { ieee_float_shape_type gf_u; gf_u.value = (x); (jx) = gf_u.word; } while (0);
+        ix = jx&0x7fffffff;
+        if(ix>=0x7f800000) return x+x;
+        h = 0.5;
+        if (jx<0) h = -h;
+        if (ix < 0x41b00000) {
+            if (ix<0x31800000)
+                if(shuge+x>one) return x;
+            t = expm1f(fabsf(x));
+            if(ix<0x3f800000) return h*((float)2.0*t-t*t/(t+one));
+            return h*(t+t/(t+one));
+        }
+        if (ix < 0x42b17180) return h*__ieee754_expf(fabsf(x));
+        if (ix<=0x42b2d4fc) {
+            w = __ieee754_expf((float)0.5*fabsf(x));
+            t = h*w;
+            return t*w;
+        }
+        return x*shuge;
+}
+
+