1 files changed, 36 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr47555.c b/gcc/testsuite/gcc.dg/pr47555.c
new file mode 100644
index 000000000..d65265274
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr47555.c
@@ -0,0 +1,36 @@
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+#define FILL_BACK *ptrRGB++=0; *ptrRGB++=0; *ptrRGB++=0;
+
+  
+void uncompact(unsigned char* ptrRGB, const unsigned int* ptrSrc, const unsigned char* ptrRGBcompact, int line, int nbPixLeft)
+{
+
+#define BIT_2_RGB32                                                     \
+  if ((v & 0x00000001)){ nbPixLeft--; *ptrRGB++ = *ptrRGBcompact++; *ptrRGB++ = *ptrRGBcompact++; *ptrRGB++ = *ptrRGBcompact++; } \
+  else{ FILL_BACK }                                                     \
+  v >>= 1;
+#define BIT_2_RGB16                                                     \
+  if ((v16 & 0x0001)){ nbPixLeft--; *ptrRGB++ = *ptrRGBcompact++; *ptrRGB++ = *ptrRGBcompact++; *ptrRGB++ = *ptrRGBcompact++; } \
+  else{ FILL_BACK }                                                     \
+  v16 >>= 1;				
+
+  int x;
+  unsigned int v, *ptrSrc32bits=(unsigned int*)ptrSrc;
+  unsigned short v16,*ptrSrc16bits;
+
+  for(x=0; x<line; x++) {
+    v = *ptrSrc32bits++;
+    BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32
+    BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32
+    BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32
+    BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32 BIT_2_RGB32
+  }
+
+  ptrSrc16bits=(unsigned short *)ptrSrc32bits;
+  v16 = *ptrSrc16bits++;
+  BIT_2_RGB16	BIT_2_RGB16	BIT_2_RGB16	BIT_2_RGB16	BIT_2_RGB16	BIT_2_RGB16	
+  BIT_2_RGB16	BIT_2_RGB16	BIT_2_RGB16	BIT_2_RGB16	BIT_2_RGB16	BIT_2_RGB16      
+ 
+}