[CINN]delete some log (#71215)

Author: Hongqing-work

paddle/cinn/optim/optimize.cc

@@ -85,11 +85,11 @@ ir::LoweredFunc Optimize(ir::LoweredFunc fn,
 #ifdef CINN_WITH_CUDA
         ir::SetCudaAxisInfo(copied);
         if (remove_gpu_for_loops) {
-          LOG(INFO) << "Before removing GPU for loops:\n" << copied;
+          VLOG(4) << "Before removing GPU for loops:\n" << copied;
           FuncPassManager func_pass_manager;
           func_pass_manager.AddPass(CreateRemoveGpuForLoopsPass());
           func_pass_manager.Run(copied);
-          LOG(INFO) << "After removing GPU for loops:\n" << copied;
+          VLOG(4) << "After removing GPU for loops:\n" << copied;
         }
         VLOG(10) << "Before Optimize CudaSyncThreadsDropIfThenElse:" << copied;
         BlockPassManager blk_pass_manager;
@@ -107,11 +107,11 @@ ir::LoweredFunc Optimize(ir::LoweredFunc fn,
 #ifdef CINN_WITH_HIP
         ir::SetCudaAxisInfo(copied);
         if (remove_gpu_for_loops) {
-          LOG(INFO) << "Before removing GPU for loops:\n" << copied;
+          VLOG(4) << "Before removing GPU for loops:\n" << copied;
           FuncPassManager func_pass_manager;
           func_pass_manager.AddPass(CreateRemoveGpuForLoopsPass());
           func_pass_manager.Run(copied);
-          LOG(INFO) << "After removing GPU for loops:\n" << copied;
+          VLOG(4) << "After removing GPU for loops:\n" << copied;
         }
         VLOG(10) << "Before Optimize CudaSyncThreadsDropIfThenElse:" << copied;
         BlockPassManager blk_pass_manager;

paddle/cinn/optim/transform_gpu_forloop.cc

@@ -735,10 +735,10 @@ void OptimizeExprGPU(ir::stmt::BlockRef block) {
 
   // Replace variables bound on block/thread to the actual
   // blockIdx/threadIdx.
-  LOG(INFO) << "Before ReplaceLoopVarToGpu: \n" << block;
+  VLOG(4) << "Before ReplaceLoopVarToGpu: \n" << block;
   ReplaceLoopVarToGpu replace_loop_var_to_gpu;
   replace_loop_var_to_gpu(block);
-  LOG(INFO) << "After ReplaceLoopVarToGpu: \n" << block;
+  VLOG(4) << "After ReplaceLoopVarToGpu: \n" << block;
 
   // Replace blockIdx in shared memory's indices to zero, because shared
   // memory cannot be accessed from another block.