ProfileData: Introduce InstrProfWriter using the naive text format

This isn't a format we'll want to write out in practice, but moving it
to the writer library simplifies llvm-profdata and isolates it from
further changes to the format.

This also allows us to update the tests to not rely on the text output
format.

llvm-svn: 204489

2 files changed, 72 insertions, 45 deletions

diff --git a/llvm/test/tools/llvm-profdata/errors.test b/llvm/test/tools/llvm-profdata/errors.test
index afac7a4dec1..487da74b86b 100644
--- a/llvm/test/tools/llvm-profdata/errors.test
+++ b/llvm/test/tools/llvm-profdata/errors.test
@@ -1,19 +1,11 @@
-RUN: not llvm-profdata merge %p/Inputs/empty.profdata %p/Inputs/foo3-1.profdata 2>&1 | FileCheck %s --check-prefix=LENGTH
-RUN: not llvm-profdata merge %p/Inputs/foo3-1.profdata %p/Inputs/foo3bar3-1.profdata 2>&1 | FileCheck %s --check-prefix=LENGTH
-RUN: not llvm-profdata merge %p/Inputs/foo4-1.profdata %p/Inputs/empty.profdata 2>&1 | FileCheck %s --check-prefix=LENGTH
-LENGTH: error: Number of instrumented functions differ
+RUN: llvm-profdata merge %p/Inputs/foo3-1.profdata %p/Inputs/foo4-1.profdata -o /dev/null 2>&1 | FileCheck %s --check-prefix=HASH
+HASH: foo4-1.profdata: foo: Function hash mismatch
 
-RUN: not llvm-profdata merge %p/Inputs/foo3-1.profdata %p/Inputs/bar3-1.profdata 2>&1 | FileCheck %s --check-prefix=NAME
-NAME: error: Function name mismatch, foo != bar
-
-RUN: not llvm-profdata merge %p/Inputs/foo3-1.profdata %p/Inputs/foo4-1.profdata 2>&1 | FileCheck %s --check-prefix=HASH
-HASH: error: Function hash mismatch for foo
-
-RUN: not llvm-profdata merge %p/Inputs/overflow.profdata %p/Inputs/overflow.profdata 2>&1 | FileCheck %s --check-prefix=OVERFLOW
-OVERFLOW: error: Counter overflow for overflow
+RUN: llvm-profdata merge %p/Inputs/overflow.profdata %p/Inputs/overflow.profdata -o /dev/null 2>&1 | FileCheck %s --check-prefix=OVERFLOW
+OVERFLOW: overflow.profdata: overflow: Counter overflow
 
 RUN: not llvm-profdata merge %p/Inputs/invalid-count-later.profdata %p/Inputs/invalid-count-later.profdata 2>&1 | FileCheck %s --check-prefix=INVALID-COUNT-LATER
-INVALID-COUNT-LATER: error: {{.*}}: Malformed profile data
+INVALID-COUNT-LATER: error: {{.*}}invalid-count-later.profdata: Malformed profile data
 
 RUN: not llvm-profdata merge %p/Inputs/bad-hash.profdata %p/Inputs/bad-hash.profdata 2>&1 | FileCheck %s --check-prefix=BAD-HASH
-BAD-HASH: error: {{.*}}: Malformed profile data
+BAD-HASH: error: {{.*}}bad-hash.profdata: Malformed profile data
diff --git a/llvm/test/tools/llvm-profdata/simple.test b/llvm/test/tools/llvm-profdata/simple.test
index 74ff5e60273..5ef38d447e7 100644
--- a/llvm/test/tools/llvm-profdata/simple.test
+++ b/llvm/test/tools/llvm-profdata/simple.test
@@ -1,33 +1,68 @@
-RUN: llvm-profdata merge %p/Inputs/foo3-1.profdata %p/Inputs/foo3-2.profdata 2>&1 | FileCheck %s --check-prefix=FOO3
-RUN: llvm-profdata merge %p/Inputs/foo3-2.profdata %p/Inputs/foo3-1.profdata 2>&1 | FileCheck %s --check-prefix=FOO3
-FOO3:      {{^foo$}}
-FOO3-NEXT: {{^3$}}
-FOO3-NEXT: {{^3$}}
-FOO3-NEXT: {{^8$}}
-FOO3-NEXT: {{^7$}}
-FOO3-NEXT: {{^6$}}
+RUN: llvm-profdata merge %p/Inputs/foo3-1.profdata %p/Inputs/foo3-2.profdata 2>&1 | llvm-profdata show - -all-functions -counts | FileCheck %s --check-prefix=FOO3
+RUN: llvm-profdata merge %p/Inputs/foo3-2.profdata %p/Inputs/foo3-1.profdata 2>&1 | llvm-profdata show - -all-functions -counts | FileCheck %s --check-prefix=FOO3
+FOO3: foo:
+FOO3: Counters: 3
+FOO3: Function count: 8
+FOO3: Block counts: [7, 6]
+FOO3: Total functions: 1
+FOO3: Maximum function count: 8
+FOO3: Maximum internal block count: 7
 
-RUN: llvm-profdata merge %p/Inputs/foo4-1.profdata %p/Inputs/foo4-2.profdata 2>&1 | FileCheck %s --check-prefix=FOO4
-RUN: llvm-profdata merge %p/Inputs/foo4-2.profdata %p/Inputs/foo4-1.profdata 2>&1 | FileCheck %s --check-prefix=FOO4
-FOO4:      {{^foo$}}
-FOO4-NEXT: {{^4$}}
-FOO4-NEXT: {{^4$}}
-FOO4-NEXT: {{^18$}}
-FOO4-NEXT: {{^28$}}
-FOO4-NEXT: {{^38$}}
-FOO4-NEXT: {{^48$}}
+RUN: llvm-profdata merge %p/Inputs/foo4-1.profdata %p/Inputs/foo4-2.profdata 2>&1 | llvm-profdata show - -all-functions -counts | FileCheck %s --check-prefix=FOO4
+RUN: llvm-profdata merge %p/Inputs/foo4-2.profdata %p/Inputs/foo4-1.profdata 2>&1 | llvm-profdata show - -all-functions -counts | FileCheck %s --check-prefix=FOO4
+FOO4: foo:
+FOO4: Counters: 4
+FOO4: Function count: 18
+FOO4: Block counts: [28, 38, 48]
+FOO4: Total functions: 1
+FOO4: Maximum function count: 18
+FOO4: Maximum internal block count: 48
 
-RUN: llvm-profdata merge %p/Inputs/foo3bar3-1.profdata %p/Inputs/foo3bar3-2.profdata 2>&1 | FileCheck %s --check-prefix=FOO3BAR3
-RUN: llvm-profdata merge %p/Inputs/foo3bar3-2.profdata %p/Inputs/foo3bar3-1.profdata 2>&1 | FileCheck %s --check-prefix=FOO3BAR3
-FOO3BAR3:      {{^foo$}}
-FOO3BAR3-NEXT: {{^3$}}
-FOO3BAR3-NEXT: {{^3$}}
-FOO3BAR3-NEXT: {{^19$}}
-FOO3BAR3-NEXT: {{^22$}}
-FOO3BAR3-NEXT: {{^28$}}
-FOO3BAR3:      {{^bar$}}
-FOO3BAR3-NEXT: {{^3$}}
-FOO3BAR3-NEXT: {{^3$}}
-FOO3BAR3-NEXT: {{^36$}}
-FOO3BAR3-NEXT: {{^42$}}
-FOO3BAR3-NEXT: {{^50$}}
+RUN: llvm-profdata merge %p/Inputs/foo3bar3-1.profdata %p/Inputs/foo3bar3-2.profdata 2>&1 | llvm-profdata show - -all-functions -counts | FileCheck %s --check-prefix=FOO3BAR3
+RUN: llvm-profdata merge %p/Inputs/foo3bar3-2.profdata %p/Inputs/foo3bar3-1.profdata 2>&1 | llvm-profdata show - -all-functions -counts | FileCheck %s --check-prefix=FOO3BAR3
+FOO3BAR3: foo:
+FOO3BAR3: Counters: 3
+FOO3BAR3: Function count: 19
+FOO3BAR3: Block counts: [22, 28]
+FOO3BAR3: bar:
+FOO3BAR3: Counters: 3
+FOO3BAR3: Function count: 36
+FOO3BAR3: Block counts: [42, 50]
+FOO3BAR3: Total functions: 2
+FOO3BAR3: Maximum function count: 36
+FOO3BAR3: Maximum internal block count: 50
+
+RUN: llvm-profdata merge %p/Inputs/empty.profdata %p/Inputs/foo3-1.profdata 2>&1 | llvm-profdata show - -all-functions -counts | FileCheck %s --check-prefix=FOO3EMPTY
+FOO3EMPTY: foo:
+FOO3EMPTY: Counters: 3
+FOO3EMPTY: Function count: 1
+FOO3EMPTY: Block counts: [2, 3]
+FOO3EMPTY: Total functions: 1
+FOO3EMPTY: Maximum function count: 1
+FOO3EMPTY: Maximum internal block count: 3
+
+RUN: llvm-profdata merge %p/Inputs/foo3-1.profdata %p/Inputs/foo3bar3-1.profdata 2>&1 | llvm-profdata show - -all-functions -counts | FileCheck %s --check-prefix=FOO3FOO3BAR3
+FOO3FOO3BAR3: foo:
+FOO3FOO3BAR3: Counters: 3
+FOO3FOO3BAR3: Function count: 3
+FOO3FOO3BAR3: Block counts: [5, 8]
+FOO3FOO3BAR3: bar:
+FOO3FOO3BAR3: Counters: 3
+FOO3FOO3BAR3: Function count: 7
+FOO3FOO3BAR3: Block counts: [11, 13]
+FOO3FOO3BAR3: Total functions: 2
+FOO3FOO3BAR3: Maximum function count: 7
+FOO3FOO3BAR3: Maximum internal block count: 13
+
+RUN: llvm-profdata merge %p/Inputs/foo3-1.profdata %p/Inputs/bar3-1.profdata 2>&1 | llvm-profdata show - -all-functions -counts | FileCheck %s --check-prefix=DISJOINT
+DISJOINT: foo:
+DISJOINT: Counters: 3
+DISJOINT: Function count: 1
+DISJOINT: Block counts: [2, 3]
+DISJOINT: bar:
+DISJOINT: Counters: 3
+DISJOINT: Function count: 1
+DISJOINT: Block counts: [2, 3]
+DISJOINT: Total functions: 2
+DISJOINT: Maximum function count: 1
+DISJOINT: Maximum internal block count: 3