re PR target/17245 (ICE compiling gsl-1.5 statistics/lag1.c)

	PR target/17245
	* config/sparc/sparc.c (legitimate_address_p): Remove 'imm2'.
	Revert 2004-10-08 patch.  Reject TFmode LO_SUM in 32-bit mode.

From-SVN: r97715

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 87b8fa369966242030ec67fda84dc9b2a263654e..37f89d47a1ee988110a94ad970d4a29a47c6ddfd 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2005-04-06  Eric Botcazou  <ebotcazou@libertysurf.fr>
+
+       PR target/17245
+       * config/sparc/sparc.c (legitimate_address_p): Remove 'imm2'.
+       Revert 2004-10-08 patch.  Reject TFmode LO_SUM in 32-bit mode.
+
 2005-04-05  James E. Wilson  <wilson@specifixinc.com>
 
        PR target/20670

diff --git a/gcc/config/sparc/sparc.c b/gcc/config/sparc/sparc.c
index e464ffd9e14cd092e9c20a4b51efb5ffdb5fcfba..78f5b754ce250d9970c238bb40f1f6730ced0a4d 100644 (file)
--- a/gcc/config/sparc/sparc.c
+++ b/gcc/config/sparc/sparc.c
@@ -3320,7 +3320,7 @@ legitimate_pic_operand_p (rtx x)
 int
 legitimate_address_p (enum machine_mode mode, rtx addr, int strict)
 {
-  rtx rs1 = NULL, rs2 = NULL, imm1 = NULL, imm2;
+  rtx rs1 = NULL, rs2 = NULL, imm1 = NULL;
 
   if (REG_P (addr) || GET_CODE (addr) == SUBREG)
     rs1 = addr;
@@ -3384,7 +3384,6 @@ legitimate_address_p (enum machine_mode mode, rtx addr, int strict)
               && ! TARGET_CM_MEDMID
               && RTX_OK_FOR_OLO10_P (rs2))
        {
-         imm2 = rs2;
          rs2 = NULL;
          imm1 = XEXP (rs1, 1);
          rs1 = XEXP (rs1, 0);
@@ -3400,25 +3399,10 @@ legitimate_address_p (enum machine_mode mode, rtx addr, int strict)
       if (! CONSTANT_P (imm1) || tls_symbolic_operand (rs1))
        return 0;
 
-      if (USE_AS_OFFSETABLE_LO10)
-       {
-         /* We can't allow TFmode, because an offset greater than or equal to
-            the alignment (8) may cause the LO_SUM to overflow if !v9.  */
-         if (mode == TFmode && ! TARGET_V9)
-           return 0;
-       }
-      else
-        {
-         /* We prohibit LO_SUM for TFmode when there are no quad move insns
-            and we consequently need to split.  We do this because LO_SUM
-            is not an offsettable address.  If we get the situation in reload
-            where source and destination of a movtf pattern are both MEMs with
-            LO_SUM address, then only one of them gets converted to an
-            offsettable address.  */
-         if (mode == TFmode
-             && ! (TARGET_FPU && TARGET_ARCH64 && TARGET_HARD_QUAD))
-           return 0;
-       }
+      /* We can't allow TFmode in 32-bit mode, because an offset greater
+        than the alignment (8) may cause the LO_SUM to overflow.  */
+      if (mode == TFmode && !TARGET_64BIT)
+       return 0;
     }
   else if (GET_CODE (addr) == CONST_INT && SMALL_INT (addr))
     return 1;