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-rw-r--r--gcc/testsuite/gcc.c-torture/compile/20070520-1.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/compile/20070520-1.c b/gcc/testsuite/gcc.c-torture/compile/20070520-1.c
new file mode 100644
index 000000000..fe9db9747
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/compile/20070520-1.c
@@ -0,0 +1,35 @@
+typedef unsigned char uint8_t;
+extern uint8_t ff_cropTbl[256 + 2 * 1024];
+
+void ff_pred8x8_plane_c(uint8_t *src, int stride){
+ int j, k;
+ int a;
+ uint8_t *cm = ff_cropTbl + 1024;
+ const uint8_t * const src0 = src+3-stride;
+ const uint8_t *src1 = src+4*stride-1;
+ const uint8_t *src2 = src1-2*stride;
+ int H = src0[1] - src0[-1];
+ int V = src1[0] - src2[ 0];
+ for(k=2; k<=4; ++k) {
+ src1 += stride; src2 -= stride;
+ H += k*(src0[k] - src0[-k]);
+ V += k*(src1[0] - src2[ 0]);
+ }
+ H = ( 17*H+16 ) >> 5;
+ V = ( 17*V+16 ) >> 5;
+
+ a = 16*(src1[0] + src2[8]+1) - 3*(V+H);
+ for(j=8; j>0; --j) {
+ int b = a;
+ a += V;
+ src[0] = cm[ (b ) >> 5 ];
+ src[1] = cm[ (b+ H) >> 5 ];
+ src[2] = cm[ (b+2*H) >> 5 ];
+ src[3] = cm[ (b+3*H) >> 5 ];
+ src[4] = cm[ (b+4*H) >> 5 ];
+ src[5] = cm[ (b+5*H) >> 5 ];
+ src[6] = cm[ (b+6*H) >> 5 ];
+ src[7] = cm[ (b+7*H) >> 5 ];
+ src += stride;
+ }
+}