From: Bin Cheng <bin.cheng@arm.com>
Date: Thu, 11 Aug 2016 10:01:03 +0000 (+0000)
Subject: aarch64-simd.md (vec_cmp<mode><v_cmp_result>): Init variable explicitly, also assert... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=bb2767763e5c1c2ad2846c4c48aff4c7b00f2f4e;p=gcc.git

aarch64-simd.md (vec_cmp<mode><v_cmp_result>): Init variable explicitly, also assert on it before use.

	* config/aarch64/aarch64-simd.md (vec_cmp<mode><v_cmp_result>: Init
	variable explicitly, also assert on it before use.

From-SVN: r239358
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 4984f50d51d..5c618dce549 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2016-08-11  Bin Cheng  <bin.cheng@arm.com>
+
+	* config/aarch64/aarch64-simd.md (vec_cmp<mode><v_cmp_result>: Init
+	variable explicitly, also assert on it before use.
+
 2016-08-11  Richard Biener  <rguenther@suse.de>
 
 	PR tree-optimization/72772
diff --git a/gcc/config/aarch64/aarch64-simd.md b/gcc/config/aarch64/aarch64-simd.md
index 37d397c33d6..3817895b6ee 100644
--- a/gcc/config/aarch64/aarch64-simd.md
+++ b/gcc/config/aarch64/aarch64-simd.md
@@ -2413,7 +2413,7 @@
   enum rtx_code code = GET_CODE (operands[1]);
   rtx tmp = gen_reg_rtx (<V_cmp_result>mode);
 
-  rtx (*comparison) (rtx, rtx, rtx);
+  rtx (*comparison) (rtx, rtx, rtx) = NULL;
 
   switch (code)
     {
@@ -2495,6 +2495,7 @@
 	 a UNLE b -> !(a GT b)
 	 a UNLT b -> !(a GE b)
 	 a   NE b -> !(a EQ b)  */
+      gcc_assert (comparison != NULL);
       emit_insn (comparison (operands[0], operands[2], operands[3]));
       emit_insn (gen_one_cmpl<v_cmp_result>2 (operands[0], operands[0]));
       break;
@@ -2511,6 +2512,7 @@
 	 a LE b -> b GE a
 	 a LT b -> b GT a
 	 a EQ b -> a EQ b  */
+      gcc_assert (comparison != NULL);
       emit_insn (comparison (operands[0], operands[2], operands[3]));
       break;