-Original Message-
From: H.J. Lu [mailto:hjl.to...@gmail.com]
Sent: Friday, November 28, 2014 10:45 PM
To: Zhenqiang Chen
Cc: Richard Henderson; GCC Patches
Subject: Re: [PATCH, ifcvt] Fix PR63917
On Sun, Nov 23, 2014 at 7:47 PM, Zhenqiang Chen
zhenqiang.c...@arm.com wrote
On Sun, Nov 23, 2014 at 7:47 PM, Zhenqiang Chen zhenqiang.c...@arm.com wrote:
-Original Message-
From: Richard Henderson [mailto:r...@redhat.com]
Sent: Friday, November 21, 2014 2:27 AM
To: Zhenqiang Chen; gcc-patches@gcc.gnu.org
Subject: Re: [PATCH, ifcvt] Fix PR63917
On 11/20
-Original Message-
From: Richard Henderson [mailto:r...@redhat.com]
Sent: Friday, November 21, 2014 2:27 AM
To: Zhenqiang Chen; gcc-patches@gcc.gnu.org
Subject: Re: [PATCH, ifcvt] Fix PR63917
On 11/20/2014 10:48 AM, Zhenqiang Chen wrote:
+/* Check X clobber CC reg
On Thu, Nov 20, 2014 at 1:48 AM, Zhenqiang Chen zhenqiang.c...@arm.com wrote:
Hi,
r217646 enhances ifcvt to handle cbranchcc4 instruction. But ifcvt does not
strictly check the dependence before moving instructions before IF. Then
some instructions, which clobber CC, are inserted before the
On 11/20/2014 10:48 AM, Zhenqiang Chen wrote:
+/* Check X clobber CC reg or not. */
+
+static bool
+clobber_cc_p (rtx x)
+{
+ RTX_CODE code = GET_CODE (x);
+ int i;
+
+ if (code == CLOBBER
+ REG_P (XEXP (x, 0))
+ (GET_MODE_CLASS (GET_MODE (XEXP (x, 0))) == MODE_CC))
+
