[PATCH] test suite: SingleSource/Benchmarks/Linpack

[robert lytton]

Replace stdout with stderr to make deterministic
(xcore does not buffer stdout/stderr)

http://llvm-reviews.chandlerc.com/D2787

Files:
  SingleSource/Benchmarks/Linpack/linpack-pc.c
  SingleSource/Benchmarks/Linpack/linpack-pc.reference_output

Index: SingleSource/Benchmarks/Linpack/linpack-pc.c
===================================================================
--- SingleSource/Benchmarks/Linpack/linpack-pc.c
+++ SingleSource/Benchmarks/Linpack/linpack-pc.c
@@ -286,10 +286,10 @@
         cray = .056; 
         n = 100;
 
-        fprintf(stdout,ROLLING);fprintf(stdout,PREC);
-        fprintf(stdout,"Precision Linpack Benchmark - PC Version in 'C/C++'\n\n");
-        fprintf(stdout,"Compiler     %s\n",compiler);
-        fprintf(stdout,"Optimisation %s\n\n",options);
+        fprintf(stderr,ROLLING);fprintf(stderr,PREC);
+        fprintf(stderr,"Precision Linpack Benchmark - PC Version in 'C/C++'\n\n");
+        fprintf(stderr,"Compiler     %s\n",compiler);
+        fprintf(stderr,"Optimisation %s\n\n",options);
 
         ops = (2.0e0*(n*n*n))/3.0 + 2.0*(n*n);
 
@@ -326,9 +326,9 @@
         x1 = x[0] - 1;
         x2 = x[n-1] - 1;
         
-        printf("norm resid      resid           machep");
-        printf("         x[0]-1          x[n-1]-1\n");
-        printf("%6.1f %17.8e%17.8e%17.8e%17.8e\n\n",
+        fprintf(stderr,"norm resid      resid           machep");
+        fprintf(stderr,"         x[0]-1          x[n-1]-1\n");
+        fprintf(stderr,"%6.1f %17.8e%17.8e%17.8e%17.8e\n\n",
                (double)residn, (double)resid, (double)epsn, 
                (double)x1, (double)x2);
 
Index: SingleSource/Benchmarks/Linpack/linpack-pc.reference_output
===================================================================
--- SingleSource/Benchmarks/Linpack/linpack-pc.reference_output
+++ SingleSource/Benchmarks/Linpack/linpack-pc.reference_output
@@ -1,3 +1,11 @@
+Rolled Single Precision Linpack Benchmark - PC Version in 'C/C++'
+
+Compiler     INSERT COMPILER NAME HERE
+Optimisation INSERT OPTIMISATION OPTIONS HERE
+
+norm resid      resid           machep         x[0]-1          x[n-1]-1
+   1.6    3.80277634e-05   1.19209290e-07  -1.38282776e-05  -7.51018524e-06
+
 Times are reported for matrices of order          100
 1 pass times for array with leading dimension of  201
 
@@ -27,12 +35,4 @@
 
       dgefa      dgesl      total     Mflops       unit      ratio
 Average                                 0.00
-Rolled Single Precision Linpack Benchmark - PC Version in 'C/C++'
-
-Compiler     INSERT COMPILER NAME HERE
-Optimisation INSERT OPTIMISATION OPTIONS HERE
-
-norm resid      resid           machep         x[0]-1          x[n-1]-1
-   1.6    3.80277634e-05   1.19209290e-07  -1.38282776e-05  -7.51018524e-06
-
 exit 0
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