simplify-rtx.c (simplify_unary_operation): Add cases FLOAT_EXTEND and FLOAT_TRUNCATE...

	* simplify-rtx.c (simplify_unary_operation): Add cases
	FLOAT_EXTEND and FLOAT_TRUNCATE to ones that return 0.

From-SVN: r36471

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index a1514f88d752ca4fcdbd277e35caf751a1799075..ffa88662867a758bacac2c7945209d6010800a39 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+Sun Sep 17 10:46:17 2000  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
+
+       * simplify-rtx.c (simplify_unary_operation): Add cases
+       FLOAT_EXTEND and FLOAT_TRUNCATE to ones that return 0.
+
 2000-09-17  Bernd Schmidt  <bernds@redhat.co.uk>
 
         * expr.h (emit_library_call, emit_library_call_value): Delete

diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c
index 0091d727092d96845e90afca2eb2145180795a24..1e130768eed7d84e2b75daa6eb46e934a9c80492 100644 (file)
--- a/gcc/simplify-rtx.c
+++ b/gcc/simplify-rtx.c
@@ -389,6 +389,8 @@ simplify_unary_operation (code, mode, op, op_mode)
          break;
 
        case SQRT:
+       case FLOAT_EXTEND:
+       case FLOAT_TRUNCATE:
          return 0;
 
        default: