From: rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Mon, 18 Apr 2016 09:25:46 +0000 (+0000)
Subject: 2016-04-18  Richard Biener  <rguenther@suse.de>
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=90e4a3b13efa63dee074b4611a405b3b1e565ef1;p=thirdparty%2Fgcc.git

2016-04-18  Richard Biener  <rguenther@suse.de>

        PR middle-end/37870
	* expmed.c (extract_bit_field_1): Remove broken case
	using a wider MODE_INT mode.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@235103 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ff99971783e1..d6b08614628e 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2016-04-18  Richard Biener  <rguenther@suse.de>
+
+        PR middle-end/37870
+	* expmed.c (extract_bit_field_1): Remove broken case
+	using a wider MODE_INT mode.
+
 2016-04-18  Segher Boessenkool  <segher@kernel.crashing.org>
 
 	* has-brig.c (lendian16): Don't try to use __builtin_bswap16
diff --git a/gcc/expmed.c b/gcc/expmed.c
index 31d905bd3d57..ec968da63336 100644
--- a/gcc/expmed.c
+++ b/gcc/expmed.c
@@ -1647,17 +1647,6 @@ extract_bit_field_1 (rtx str_rtx, unsigned HOST_WIDE_INT bitsize,
 	    if (GET_CODE (op0) == SUBREG)
 	      op0 = force_reg (imode, op0);
 	  }
-	else if (REG_P (op0))
-	  {
-	    rtx reg, subreg;
-	    imode = smallest_mode_for_size (GET_MODE_BITSIZE (GET_MODE (op0)),
-					    MODE_INT);
-	    reg = gen_reg_rtx (imode);
-	    subreg = gen_lowpart_SUBREG (GET_MODE (op0), reg);
-	    emit_move_insn (subreg, op0);
-	    op0 = reg;
-	    bitnum += SUBREG_BYTE (subreg) * BITS_PER_UNIT;
-	  }
 	else
 	  {
 	    HOST_WIDE_INT size = GET_MODE_SIZE (GET_MODE (op0));