Added print statements to kernel

llvm/test/VISC/gemm_opencl/matrixMul/visc_gemm_opencl.ll

 ; RUN: opt -load LLVMBuildDFG.so -load LLVMDFG2LLVM_X86.so -load LLVMClearDFG.so -dfg2llvm-x86 -clearDFG -o %t.ll -S < %s
 ; RUN: llvm-link %t.ll ~/current-src/projects/visc-rt/visc-rt.ll -S -o %t.linked.ll
 ; RUN: clang -O3 %t.linked.ll -lpthread -lOpenCL -o %t.bin
-; RUN: %t.bin 5
+; RUN: %t.bin
 ; ModuleID = 'gemm_opencl.c'
 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
 target triple = "x86_64-unknown-linux-gnu"
 
-%struct._IO_FILE = type { i32, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, %struct._IO_marker*, %struct._IO_FILE*, i32, i32, i64, i16, i8, [1 x i8], i8*, i64, i8*, i8*, i8*, i8*, i64, i32, [20 x i8] }
-%struct._IO_marker = type { %struct._IO_marker*, %struct._IO_FILE*, i32 }
-%struct._cl_mem = type opaque
-%struct._cl_platform_id = type opaque
-%struct._cl_context = type opaque
-%struct._cl_device_id = type opaque
-%struct._cl_command_queue = type opaque
-%struct._cl_program = type opaque
-%struct._cl_kernel = type opaque
-%struct._cl_event = type opaque
-
 @.str1 = private unnamed_addr constant [45 x i8] c"Mismatch at %d,%d --- C = %f and goldC = %f\0A\00", align 1
 @str = private unnamed_addr constant [9 x i8] c"\0AFailed!\00"
 @str26 = private unnamed_addr constant [7 x i8] c"\0ADone!\00"
@@ -186,56 +175,65 @@ declare void @llvm.visc.bind.input(i8*, i32, i32)
 declare void @llvm.visc.bind.output(i8*, i32, i32)
 ; ----------------- VISC intrinsics end ------------------
 
-
+@.strce = private unnamed_addr constant [28 x i8] c"Computing element (%d, %d)\0A\00", align 1
+@stref = private unnamed_addr constant [17 x i8] c"Entered function\00"
+@strrc = private unnamed_addr constant [16 x i8] c"Result computed\00"
+@strrw = private unnamed_addr constant [20 x i8] c"Result written to C\00"
+@stroa = private unnamed_addr constant [17 x i8] c"Output allocated\00"
 
 ; Function Attrs: nounwind uwtable
 define %rtype @matrixMul(float* nocapture %A, i32 %bytes_A, float* nocapture %B, i32 %bytes_B, float* %C, i32 %bytes_C, i32 %k, i32 %n, i32 %m) #0 {
 entry:
+  %puts = tail call i32 @puts(i8* getelementptr inbounds ([17 x i8]* @stref, i64 0, i64 0))
+
   ; ------------------------- VISC changes ------------------
   ; Replace get_global_id calls with calls to getNode followed but getNumNodeInstances.x
-  ; Replaced statement -- %call = tail call i32 (i32, ...)* bitcast (i32 (...)* @get_global_id to i32 (i32, ...)*)(i32 0) #2
+  ; Replaced statement -- %call1 = tail call i32 (i32, ...)* bitcast (i32 (...)* @get_global_id to i32 (i32, ...)*)(i32 0) #3
   %this_node = call i8* @llvm.visc.getNode()
-  %call = tail call i32 @llvm.visc.getNumNodeInstances.x(i8* %this_node)
-
+  %call1 = call i32 @llvm.visc.getNumNodeInstances.x(i8* %this_node)
+  
   ; Replace get_global_id calls with calls to getNode followed but getNumNodeInstances.x
-  ; Replaced statement -- %call1 = tail call i32 (i32, ...)* bitcast (i32 (...)* @get_global_id to i32 (i32, ...)*)(i32 1) #2
-  %call1 = tail call i32 @llvm.visc.getNumNodeInstances.y(i8* %this_node)
+  ; Replaced statement -- %call2 = tail call i32 (i32, ...)* bitcast (i32 (...)* @get_global_id to i32 (i32, ...)*)(i32 1) #3
+  %call2 = call i32 @llvm.visc.getNumNodeInstances.y(i8* %this_node)
   ; ---------------------- VISC changes End ------------------
-  
-  %cmp22 = icmp sgt i32 %k, 0
-  br i1 %cmp22, label %for.body.lr.ph, label %for.end
+  %call3 = tail call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([28 x i8]* @.strce, i64 0, i64 0), i32 %call1, i32 %call2) #3
+  %cmp32 = icmp sgt i32 %k, 0
+  br i1 %cmp32, label %for.body.lr.ph, label %for.end
 
 for.body.lr.ph:                                   ; preds = %entry
-  %mul = mul nsw i32 %call1, %k
+  %mul = mul nsw i32 %call2, %k
   %0 = sext i32 %mul to i64
   br label %for.body
 
 for.body:                                         ; preds = %for.body, %for.body.lr.ph
   %indvars.iv = phi i64 [ 0, %for.body.lr.ph ], [ %indvars.iv.next, %for.body ]
-  %res.024 = phi float [ 0.000000e+00, %for.body.lr.ph ], [ %add7, %for.body ]
+  %res.034 = phi float [ 0.000000e+00, %for.body.lr.ph ], [ %add9, %for.body ]
   %1 = add nsw i64 %indvars.iv, %0
   %arrayidx = getelementptr inbounds float* %A, i64 %1
   %2 = load float* %arrayidx, align 4, !tbaa !0
   %3 = trunc i64 %indvars.iv to i32
-  %mul2 = mul nsw i32 %3, %n
-  %add3 = add nsw i32 %mul2, %call
-  %idxprom4 = sext i32 %add3 to i64
-  %arrayidx5 = getelementptr inbounds float* %B, i64 %idxprom4
-  %4 = load float* %arrayidx5, align 4, !tbaa !0
-  %mul6 = fmul float %2, %4
-  %add7 = fadd float %res.024, %mul6
+  %mul4 = mul nsw i32 %3, %n
+  %add5 = add nsw i32 %mul4, %call1
+  %idxprom6 = sext i32 %add5 to i64
+  %arrayidx7 = getelementptr inbounds float* %B, i64 %idxprom6
+  %4 = load float* %arrayidx7, align 4, !tbaa !0
+  %mul8 = fmul float %2, %4
+  %add9 = fadd float %res.034, %mul8
   %indvars.iv.next = add i64 %indvars.iv, 1
   %lftr.wideiv = trunc i64 %indvars.iv.next to i32
   %exitcond = icmp eq i32 %lftr.wideiv, %k
   br i1 %exitcond, label %for.end, label %for.body
 
 for.end:                                          ; preds = %for.body, %entry
-  %res.0.lcssa = phi float [ 0.000000e+00, %entry ], [ %add7, %for.body ]
-  %mul8 = mul nsw i32 %call1, %n
-  %add9 = add nsw i32 %mul8, %call
-  %idxprom10 = sext i32 %add9 to i64
-  %arrayidx11 = getelementptr inbounds float* %C, i64 %idxprom10
-  store float %res.0.lcssa, float* %arrayidx11, align 4, !tbaa !0
+  %res.0.lcssa = phi float [ 0.000000e+00, %entry ], [ %add9, %for.body ]
+  %puts29 = tail call i32 @puts(i8* getelementptr inbounds ([16 x i8]* @strrc, i64 0, i64 0))
+  %mul11 = mul nsw i32 %call2, %n
+  %add12 = add nsw i32 %mul11, %call1
+  %idxprom13 = sext i32 %add12 to i64
+  %arrayidx14 = getelementptr inbounds float* %C, i64 %idxprom13
+  store float %res.0.lcssa, float* %arrayidx14, align 4, !tbaa !0
+  %puts30 = tail call i32 @puts(i8* getelementptr inbounds ([20 x i8]* @strrw, i64 0, i64 0))
+  %puts31 = tail call i32 @puts(i8* getelementptr inbounds ([17 x i8]* @stroa, i64 0, i64 0))
   %.fca.0.insert = insertvalue %rtype undef, float* %C, 0
   %.fca.1.insert = insertvalue %rtype %.fca.0.insert, i32 %bytes_C, 1
   ret %rtype %.fca.1.insert
@@ -424,9 +422,6 @@ if.end:                                           ; preds = %if.else, %if.then
 ; Function Attrs: nounwind
 declare void @srand(i32) #1
 
-; Function Attrs: nounwind
-declare i32 @fprintf(%struct._IO_FILE* nocapture, i8* nocapture, ...) #1
-
 ; Function Attrs: noreturn nounwind
 declare void @exit(i32) #5