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authorrsandifo <rsandifo@138bc75d-0d04-0410-961f-82ee72b054a4>2012-11-28 21:45:03 +0000
committerrsandifo <rsandifo@138bc75d-0d04-0410-961f-82ee72b054a4>2012-11-28 21:45:03 +0000
commit69bdc9bfb10a970b8a18c8293913a06a58085482 (patch)
tree5a0889a54ea81d229c3829d0a07454d20ff7e0e5
parent062c246b824a38f92cfd287b22e8a5a9744421f1 (diff)
downloadgcc-69bdc9bfb10a970b8a18c8293913a06a58085482.tar.gz
gcc/
PR rtl-optimization/55052 * simplify-rtx.c (simplify_subreg): Restore SCALAR_INT_MODE_P check. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@193909 138bc75d-0d04-0410-961f-82ee72b054a4
-rw-r--r--gcc/ChangeLog5
-rw-r--r--gcc/simplify-rtx.c2
2 files changed, 6 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 83edb9b1965..b4febea6753 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2012-11-28 Richard Sandiford <rdsandiford@googlemail.com>
+
+ PR rtl-optimization/55052
+ * simplify-rtx.c (simplify_subreg): Restore SCALAR_INT_MODE_P check.
+
2012-11-28 David Edelsohn <dje.gcc@gmail.com>
* target.def (use_blocks_for_decl_p): New hook.
diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c
index 46d9e8a1ede..f26f0083cf6 100644
--- a/gcc/simplify-rtx.c
+++ b/gcc/simplify-rtx.c
@@ -5875,7 +5875,7 @@ simplify_subreg (enum machine_mode outermode, rtx op,
/* A SUBREG resulting from a zero extension may fold to zero if
it extracts higher bits that the ZERO_EXTEND's source bits. */
- if (GET_CODE (op) == ZERO_EXTEND)
+ if (GET_CODE (op) == ZERO_EXTEND && SCALAR_INT_MODE_P (innermode))
{
unsigned int bitpos = subreg_lsb_1 (outermode, innermode, byte);
if (bitpos >= GET_MODE_PRECISION (GET_MODE (XEXP (op, 0))))