Hello!
The testcase checks if the compiler is able to vectorize with psadbw
insn on x86 targets.
2018-05-08 Uros Bizjak <ubiz...@gmail.com>
PR target/85693
* gcc.target/i386/pr85693.c: New test.
Tested on x86_64-linux-gnu {,-m32}.
Committed to mainline SVN.
Uros.
Index: gcc.target/i386/pr85693.c
===================================================================
--- gcc.target/i386/pr85693.c (nonexistent)
+++ gcc.target/i386/pr85693.c (working copy)
@@ -0,0 +1,21 @@
+/* { dg-do compile }
+/* { dg-options "-msse2 -O2 -ftree-vectorize" } */
+
+#define N 1024
+
+int abs (int);
+
+unsigned char pix1[N], pix2[N];
+
+int foo (void)
+{
+ int i_sum = 0;
+ int i;
+
+ for (i = 0; i < N; i++)
+ i_sum += abs (pix1[i] - pix2[i]);
+
+ return i_sum;
+}
+
+/* { dg-final { scan-assembler "psadbw" } } */
