GPU_PTX dlb_lb-p0::p1-hgtg

{1:r1=t; 1:r3=h;}

 P0                          | P1                          ;
 atom.cas.b32 r1, [r2], 0, 1 | ld.cg.u32 r0, [r1]          ;
 mov.u32 r3, 1               | atom.cas.b32 r2, [r3], 0, 1 ;
 st.cg.u32 [r4], r3          |                             ;

exists (0:r1=1 /\ 1:r0=1)
(device (kernel (cta (warp P0)) (cta (warp P1))))
t:global; h:global
Generated assembler
//START _litmus_P1
	ld.cg.u32 sr01, [sr11] ;
	atom.cas.b32 sr21, [sr31], 0, 1 ;
//START _litmus_P0
	atom.cas.b32 sr10, [sr20], 0, 1 ;
	mov.u32 sr30, 1 ;
	st.cg.u32 [sr40], sr30 ;

Binary '/tmp/dircac6aa.tmp/dlb-lb.exe' successfully loaded
Specification clusters: 2
Specification: [[(811, 3, 'R0'), (814, 6, 'R4')], [(872, 6, 'R0'), (868, 2, 'R10')]]
Cluster 0: OK
Cluster 1: OK
!!SUCCESS!!
Test dlb-lb Allowed
Histogram (4 states)
23774 :>0:r1=0; 1:r0=0;
55674 :>0:r1=1; 1:r0=0;
19807 :>0:r1=0; 1:r0=1;
750   *>0:r1=1; 1:r0=1;
Ok

Witnesses
Positive: 750, Negative: 99255
Condition exists (0:r1=1 /\ 1:r0=1) is validated
Observation dlb-lb Sometimes 750 99255
Time dlb-lb 10.00

  -- device info --
Name:                           Tesla C2075
Major revision number:          2
Minor revision number:          0
Total global memory:            5636554752
Total shared memory per block:  49152
Number of multiprocessors:      14

Machine: fractus
Revision 1365M, version 5.01 GPU_PTX experimental backend
Command line: ./litmus -mach TeslaC2075.cfg -gpu-verf-comp true ASPLOS/dlb-lb.litmus -gpu-general-bc false
Parameters
#ifndef SIZE_OF_TEST
#define SIZE_OF_TEST 100000
#endif
#ifndef NUMBER_OF_RUN
#define NUMBER_OF_RUN 1
#endif
/* cc options: -arch=sm_20 */
/* barrier: user */
/* speedcheck: no */
/* gpu_general_bc: false */
/* gpu_mem_stress: true */
/* gpu-rand-threads: true */
/* gpu_cuda: true */
/* gpu_gen_addr: true */
/* gpu_cvt_global_to_gen: true */
/* gpu_cvt_shared_to_gen: true */
/* gpu_max_ctas: 12 */
/* gpu_min_ctas: 9 */
/* gpu_max_threads: 512 */
/* gpu_min_threads: 128 */