[PATCH] Print heuristics probability fraction part with 2 digits.

[PATCH] Print heuristics probability fraction part with 2 digits.

[Martin Liška]

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Hi.

It's just a cosmetics change where I want to print 2 digits of fraction
part of heuristics probabilities. It helps to distinguish 100% from
PROB_VERY_LIKELY (99.96%).

Patch can bootstrap on ppc64le-redhat-linux and survives regression tests.

Ready to be installed?
Martin

gcc/ChangeLog:

2018-07-26  Martin Liska  <mliska@suse.cz>

	* predict.c (dump_prediction): Change to 2 digits
        in fraction part.

gcc/testsuite/ChangeLog:

2018-07-26  Martin Liska  <mliska@suse.cz>

	* gcc.dg/predict-1.c: Adjust scanned pattern to cover 2 digits.
	* gcc.dg/predict-13.c:Likewise.
	* gcc.dg/predict-3.c:Likewise.
	* gcc.dg/predict-4.c:Likewise.
	* gcc.dg/predict-5.c:Likewise.
	* gcc.dg/predict-6.c:Likewise.
	* gcc.dg/predict-9.c:Likewise.
	* gfortran.dg/predict-1.f90:Likewise.
---
 gcc/predict.c                           | 2 +-
 gcc/testsuite/gcc.dg/predict-1.c        | 2 +-
 gcc/testsuite/gcc.dg/predict-13.c       | 4 ++--
 gcc/testsuite/gcc.dg/predict-3.c        | 2 +-
 gcc/testsuite/gcc.dg/predict-4.c        | 2 +-
 gcc/testsuite/gcc.dg/predict-5.c        | 2 +-
 gcc/testsuite/gcc.dg/predict-6.c        | 2 +-
 gcc/testsuite/gcc.dg/predict-9.c        | 4 ++--
 gcc/testsuite/gfortran.dg/predict-1.f90 | 2 +-
 9 files changed, 11 insertions(+), 11 deletions(-)



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diff --git a/gcc/predict.c b/gcc/predict.c
index 65e088fb8df..a6769eda1c7 100644
--- a/gcc/predict.c
+++ b/gcc/predict.c
@@ -734,7 +734,7 @@ dump_prediction (FILE *file, enum br_predictor predictor, int probability,
   else
     edge_info_str[0] = '\0';
 
-  fprintf (file, "  %s heuristics%s%s: %.1f%%",
+  fprintf (file, "  %s heuristics%s%s: %.2f%%",
 	   predictor_info[predictor].name,
 	   edge_info_str, reason_messages[reason],
 	   probability * 100.0 / REG_BR_PROB_BASE);
diff --git a/gcc/testsuite/gcc.dg/predict-1.c b/gcc/testsuite/gcc.dg/predict-1.c
index 4ba26e6e256..9e5605a2e84 100644
--- a/gcc/testsuite/gcc.dg/predict-1.c
+++ b/gcc/testsuite/gcc.dg/predict-1.c
@@ -23,4 +23,4 @@ void foo (int bound)
     }
 }
 
-/* { dg-final { scan-tree-dump-times "guess loop iv compare heuristics of edge\[^:\]*: 36.0%" 4 "profile_estimate"} } */
+/* { dg-final { scan-tree-dump-times "guess loop iv compare heuristics of edge\[^:\]*: 36.00%" 4 "profile_estimate"} } */
diff --git a/gcc/testsuite/gcc.dg/predict-13.c b/gcc/testsuite/gcc.dg/predict-13.c
index 385be9e1389..c6da45f8127 100644
--- a/gcc/testsuite/gcc.dg/predict-13.c
+++ b/gcc/testsuite/gcc.dg/predict-13.c
@@ -20,5 +20,5 @@ int main(int argc, char **argv)
   return 10;
 }
 
-/* { dg-final { scan-tree-dump-times "combined heuristics of edge\[^:\]*: 33.3%" 3 "profile_estimate"} } */
-/* { dg-final { scan-tree-dump-times "combined heuristics of edge\[^:\]*: 0.1%" 2 "profile_estimate"} } */
+/* { dg-final { scan-tree-dump-times "combined heuristics of edge\[^:\]*: 33.30%" 3 "profile_estimate"} } */
+/* { dg-final { scan-tree-dump-times "combined heuristics of edge\[^:\]*: 0.05%" 2 "profile_estimate"} } */
diff --git a/gcc/testsuite/gcc.dg/predict-3.c b/gcc/testsuite/gcc.dg/predict-3.c
index 81addde1667..f3f416345e5 100644
--- a/gcc/testsuite/gcc.dg/predict-3.c
+++ b/gcc/testsuite/gcc.dg/predict-3.c
@@ -25,4 +25,4 @@ void foo (int bound)
     }
 }
 
-/* { dg-final { scan-tree-dump-times "guess loop iv compare heuristics of edge\[^:\]*: 64.0%" 3 "profile_estimate"} } */
+/* { dg-final { scan-tree-dump-times "guess loop iv compare heuristics of edge\[^:\]*: 64.00%" 3 "profile_estimate"} } */
diff --git a/gcc/testsuite/gcc.dg/predict-4.c b/gcc/testsuite/gcc.dg/predict-4.c
index 2ac2ec5721d..851afb1cff5 100644
--- a/gcc/testsuite/gcc.dg/predict-4.c
+++ b/gcc/testsuite/gcc.dg/predict-4.c
@@ -15,4 +15,4 @@ void foo (int bound)
     }
 }
 
-/* { dg-final { scan-tree-dump "  loop iv compare heuristics of edge\[^:\]*: 50.0%" "profile_estimate"} } */
+/* { dg-final { scan-tree-dump "  loop iv compare heuristics of edge\[^:\]*: 50.00%" "profile_estimate"} } */
diff --git a/gcc/testsuite/gcc.dg/predict-5.c b/gcc/testsuite/gcc.dg/predict-5.c
index c80b2928d57..5af5db1825e 100644
--- a/gcc/testsuite/gcc.dg/predict-5.c
+++ b/gcc/testsuite/gcc.dg/predict-5.c
@@ -21,4 +21,4 @@ void foo (int base, int bound)
     }
 }
 
-/* { dg-final { scan-tree-dump-times "guess loop iv compare heuristics of edge\[^:\]*: 64.0%" 4 "profile_estimate"} } */
+/* { dg-final { scan-tree-dump-times "guess loop iv compare heuristics of edge\[^:\]*: 64.00%" 4 "profile_estimate"} } */
diff --git a/gcc/testsuite/gcc.dg/predict-6.c b/gcc/testsuite/gcc.dg/predict-6.c
index 3acc7644629..5d6fbf158f2 100644
--- a/gcc/testsuite/gcc.dg/predict-6.c
+++ b/gcc/testsuite/gcc.dg/predict-6.c
@@ -21,4 +21,4 @@ void foo (int base, int bound)
     }
 }
 
-/* { dg-final { scan-tree-dump-times "guess loop iv compare heuristics of edge\[^:\]*: 36.0%" 4 "profile_estimate"} } */
+/* { dg-final { scan-tree-dump-times "guess loop iv compare heuristics of edge\[^:\]*: 36.00%" 4 "profile_estimate"} } */
diff --git a/gcc/testsuite/gcc.dg/predict-9.c b/gcc/testsuite/gcc.dg/predict-9.c
index 3823775e3f8..7e5ba085ece 100644
--- a/gcc/testsuite/gcc.dg/predict-9.c
+++ b/gcc/testsuite/gcc.dg/predict-9.c
@@ -19,5 +19,5 @@ void foo (int base)
   }
 }
 
-/* { dg-final { scan-tree-dump-times "first match heuristics: 2.2%" 3 "profile_estimate"} } */
-/* { dg-final { scan-tree-dump-times "first match heuristics: 5.5%" 1 "profile_estimate"} } */
+/* { dg-final { scan-tree-dump-times "first match heuristics: 2.20%" 3 "profile_estimate"} } */
+/* { dg-final { scan-tree-dump-times "first match heuristics: 5.50%" 1 "profile_estimate"} } */
diff --git a/gcc/testsuite/gfortran.dg/predict-1.f90 b/gcc/testsuite/gfortran.dg/predict-1.f90
index a3feea9b123..5360c618515 100644
--- a/gcc/testsuite/gfortran.dg/predict-1.f90
+++ b/gcc/testsuite/gfortran.dg/predict-1.f90
@@ -14,4 +14,4 @@ end do
 
 end subroutine test
 
-! { dg-final { scan-tree-dump-times "Fortran loop preheader heuristics of edge\[^:\]*: 1.0%" 2 "profile_estimate" } }
+! { dg-final { scan-tree-dump-times "Fortran loop preheader heuristics of edge\[^:\]*: 1.00%" 2 "profile_estimate" } }

Re: [PATCH] Print heuristics probability fraction part with 2 digits.

[Jeff Law]

On 07/26/2018 08:43 AM, Martin Liška wrote:
> Hi.
> 
> It's just a cosmetics change where I want to print 2 digits of fraction
> part of heuristics probabilities. It helps to distinguish 100% from
> PROB_VERY_LIKELY (99.96%).
> 
> Patch can bootstrap on ppc64le-redhat-linux and survives regression tests.
> 
> Ready to be installed?
> Martin
> 
> gcc/ChangeLog:
> 
> 2018-07-26  Martin Liska  <mliska@suse.cz>
> 
> 	* predict.c (dump_prediction): Change to 2 digits
>         in fraction part.
> 
> gcc/testsuite/ChangeLog:
> 
> 2018-07-26  Martin Liska  <mliska@suse.cz>
> 
> 	* gcc.dg/predict-1.c: Adjust scanned pattern to cover 2 digits.
> 	* gcc.dg/predict-13.c:Likewise.
> 	* gcc.dg/predict-3.c:Likewise.
> 	* gcc.dg/predict-4.c:Likewise.
> 	* gcc.dg/predict-5.c:Likewise.
> 	* gcc.dg/predict-6.c:Likewise.
> 	* gcc.dg/predict-9.c:Likewise.
> 	* gfortran.dg/predict-1.f90:Likewise.
OK.
jeff