[llvm-commits] CVS: gcc-3.4/gcc/llvm-expand.c

[Chris Lattner]

Changes in directory gcc-3.4/gcc:

llvm-expand.c updated: 1.4 -> 1.5

---
Log message:

Expand -X (where X is a floating point type) as -0.0 - X instead of 0.0 - X,
in order to fix PR216.



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Diffs of the changes:  (+4 -1)

Index: gcc-3.4/gcc/llvm-expand.c
diff -u gcc-3.4/gcc/llvm-expand.c:1.4 gcc-3.4/gcc/llvm-expand.c:1.5
--- gcc-3.4/gcc/llvm-expand.c:1.4	Fri Jan 30 16:28:42 2004
+++ gcc-3.4/gcc/llvm-expand.c	Mon Feb  2 11:42:13 2004
@@ -5677,7 +5677,10 @@
 
   case NEGATE_EXPR:    /* -A === 0-A */
     op1 = llvm_expand_expr(Fn, TREE_OPERAND(exp, 0), 0);
-    op0 = llvm_constant_get_null(op1->Ty);
+    if (!llvm_type_is_fp(op1->Ty))
+      op0 = llvm_constant_get_null(op1->Ty);
+    else
+      op0 = llvm_constant_new(op1->Ty, "-0.0");
     Result = append_inst(Fn, create_binary_inst("tmp", O_Sub, op0, op1));
     break;
   case BIT_NOT_EXPR:   /* ~A === A^-1 */