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[Bug target/49781] [x32] Unnecessary lea in x32 mode
- From: "hjl.tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 4 Aug 2011 21:03:11 +0000
- Subject: [Bug target/49781] [x32] Unnecessary lea in x32 mode
- Auto-submitted: auto-generated
- References: <bug-49781-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49781
--- Comment #22 from H.J. Lu <hjl.tools at gmail dot com> 2011-08-04 21:03:07 UTC ---
I am testing:
diff --git a/gcc/config/i386/predicates.md b/gcc/config/i386/predicates.md
index ae1fa74..373e74b 100644
--- a/gcc/config/i386/predicates.md
+++ b/gcc/config/i386/predicates.md
@@ -844,10 +844,10 @@
ok = ix86_decompose_address (op, &parts);
gcc_assert (ok);
- if (GET_CODE (parts.base) == SUBREG)
+ if (parts.base && GET_CODE (parts.base) == SUBREG)
parts.base = SUBREG_REG (parts.base);
- if (GET_CODE (parts.index) == SUBREG)
+ if (parts.index && GET_CODE (parts.index) == SUBREG)
parts.index = SUBREG_REG (parts.index);
/* Look for some component that isn't known to be aligned. */
@@ -914,7 +914,7 @@
ok = ix86_decompose_address (XEXP (op, 0), &parts);
gcc_assert (ok);
- if (GET_CODE (parts.base) == SUBREG)
+ if (parts.base && GET_CODE (parts.base) == SUBREG)
parts.base = SUBREG_REG (parts.base);
if (parts.base == NULL_RTX
@@ -924,7 +924,7 @@
|| parts.base == stack_pointer_rtx)
return true;
- if (GET_CODE (parts.index) == SUBREG)
+ if (parts.index && GET_CODE (parts.index) == SUBREG)
parts.index = SUBREG_REG (parts.index);
if (parts.index == NULL_RTX