Fix irix6 execute/921117-1.c c-torture failure.

* cse.c (cse_insn): Don't record BLKmode values. From-SVN: r15024

Fix irix6 execute/921117-1.c c-torture failure.
* cse.c (cse_insn): Don't record BLKmode values. From-SVN: r15024
bc4ddc77 · Jim Wilson · Jim Wilson · 7e3af374 · bc4ddc77 · bc4ddc77
Commit bc4ddc77 authored Sep 01, 1997 by Jim Wilson Committed by Jim Wilson Sep 01, 1997
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gcc/cse.c
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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
+Mon Sep  1 16:25:34 1997  Jim Wilson  <wilson@cygnus.com>
+
+	* cse.c (cse_insn): Don't record BLKmode values.
+
 Mon Sep  1 11:25:47 1997  Stephen Williams  (steve@icarus.icarus.com)

 	* i960.h (LINK_SPEC): Handle "-mjX" and "-mrp" switches.

--- a/gcc/cse.c
+++ b/gcc/cse.c
@@ -7297,6 +7297,10 @@ cse_insn (insn, in_libcall_block)
 	if ((flag_float_store
 	     && GET_CODE (dest) == MEM
 	     && FLOAT_MODE_P (GET_MODE (dest)))
+	    /* Don't record BLKmode values, because we don't know the
+	       size of it, and can't be sure that other BLKmode values
+	       have the same or smaller size.  */
+	    || GET_MODE (dest) == BLKmode
 	    /* Don't record values of destinations set inside a libcall block
 	       since we might delete the libcall.  Things should have been set
 	       up so we won't want to reuse such a value, but we play it safe