1 files changed, 58 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/torture/pr45874.C b/gcc/testsuite/g++.dg/torture/pr45874.C
new file mode 100644
index 000000000..70965ff57
--- /dev/null
+++ b/gcc/testsuite/g++.dg/torture/pr45874.C
@@ -0,0 +1,58 @@
+// { dg-do compile }
+
+typedef struct {
+} IppLibraryVersion;
+typedef unsigned char Ipp8u;
+typedef unsigned int Ipp32u;
+typedef signed int Ipp32s;
+typedef enum e_vm_Status {
+    VM_OK = 0,     VM_OPERATION_FAILED =-999,     VM_NOT_INITIALIZED =-998,     VM_TIMEOUT =-987,     VM_NOT_ENOUGH_DATA =-996,      VM_NULL_PTR =-995,     VM_SO_CANT_LOAD =-994,     VM_SO_INVALID_HANDLE =-993,     VM_SO_CANT_GET_ADDR =-992 }
+    vm_status;
+    typedef Ipp32s Status;
+    class MediaReceiver {
+    };
+class MediaBuffer : public MediaReceiver {
+};
+struct TrackInfo {
+};
+struct Mpeg2TrackInfo : public TrackInfo     {
+};
+class BitstreamReader     {
+public:          BitstreamReader(void);
+		 virtual ~BitstreamReader(void) {
+		 }
+		 Ipp32u GetBits(Ipp32s iNum);
+		 void SkipBits(Ipp32s iNum);
+protected:          virtual void Refresh(void);
+		    Ipp32s m_iReadyBits;
+};
+class FrameConstructor : public MediaBuffer     {
+};
+class VideoFrameConstructor : public FrameConstructor     {
+};
+class Mpeg2FrameConstructor : public VideoFrameConstructor     {
+    static Status ParsePictureHeader(Ipp8u *buf, Ipp32s iLen, Mpeg2TrackInfo *pInfo);
+};
+Status Mpeg2FrameConstructor::ParsePictureHeader(Ipp8u *buf, Ipp32s iLen, Mpeg2TrackInfo *pInfo) {
+    BitstreamReader bs;
+    bs.SkipBits(32 + 4 + 4 + 4 + 4 + 4 + 2);
+    bs.SkipBits(1 + 1 + 1 + 1 + 1 + 1 + 1);
+    bs.SkipBits(5);
+    bs.SkipBits(3);
+    Ipp8u source_format;
+    bs.SkipBits(22);
+    bs.SkipBits(8);
+    if (7 == source_format)     {
+	Ipp8u ufep = (Ipp8u)bs.GetBits(3);
+	if (0x01 == ufep)         {
+	    bs.SkipBits(10);
+	}
+    }
+}
+void BitstreamReader::SkipBits(Ipp32s iNum) {
+    if (iNum <= m_iReadyBits)     {
+	m_iReadyBits -= iNum;
+	Refresh();
+    }
+}
+void BitstreamReader::Refresh(void) { }