From: Jan Hubicka <jh@suse.cz>
Date: Mon, 31 Oct 2005 18:42:23 +0000 (+0100)
Subject: re PR target/20928 (ICE: unrecognizable insns with -fPIC -O1)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d8ff1871ed565ca7213f577ebff1618e5ae872c3;p=gcc.git

re PR target/20928 (ICE: unrecognizable insns with -fPIC -O1)


	PR target/20928
	* i386.c (legitimize_pic_address): Deal with large immediates.

	* gcc.c-torture/compile/pr20928.c: New test.

From-SVN: r106284
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b31e67c370c..7f69964ea4c 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,8 @@
 2005-10-31  Jan Hubicka  <jh@suse.cz>
 
+	PR target/20928
+	* i386.c (legitimize_pic_address): Deal with large immediates.
+
 	PR profile/20815
 	* coverage.c (coverage_checksum_string): Fix code to stip random seeds
 	from symbol names while computing checkup.
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 5fe9e3f0062..7b3f8887996 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -6016,7 +6016,18 @@ legitimize_pic_address (rtx orig, rtx reg)
     }
   else
     {
-      if (GET_CODE (addr) == CONST)
+      if (GET_CODE (addr) == CONST_INT
+	  && !x86_64_immediate_operand (addr, VOIDmode))
+	{
+	  if (reg)
+	    {
+	      emit_move_insn (reg, addr);
+	      new = reg;
+	    }
+	  else
+	    new = force_reg (Pmode, addr);
+	}
+      else if (GET_CODE (addr) == CONST)
 	{
 	  addr = XEXP (addr, 0);
 
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 7b0e3e7064e..78bee8652c9 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2005-10-31  Jan Hubicka  <jh@suse.cz>
+
+	PR target/20928
+	* gcc.c-torture/compile/pr20928.c: New test.
+
 2005-10-31  Andrew Pinski  <pinskia@physics.uc.edu>
 
 	PR middle-end/23492
diff --git a/gcc/testsuite/gcc.c-torture/compile/pr20928.c b/gcc/testsuite/gcc.c-torture/compile/pr20928.c
new file mode 100644
index 00000000000..ea8be9e8757
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/pr20928.c
@@ -0,0 +1,10 @@
+extern struct bar_t bar;
+void *a;
+void
+foo (void)
+{
+  void **p = a;
+  do {
+    *p++ = ((unsigned char *) &bar + ((unsigned long int) 1L << 31));
+  } while (p);
+}