Imported Upstream version 5.18.0.205

Former-commit-id: 7f59f7e792705db773f1caecdaa823092f4e2927

external/llvm/test/tools/llvm-profdata/gcc-gcov-sample-profile.test

@@ -0,0 +1,29 @@
+The input gcov file has been generated on a little endian machine. Expect
+failures on big endian systems.
+
+XFAIL: powerpc64-, s390x, mips-, mips64-, sparc
+
+Tests for sample profiles encoded in GCC's gcov format.
+
+1- Show all functions. This profile has a single main() function with several
+   inlined callees.
+RUN: llvm-profdata show --sample %p/Inputs/gcc-sample-profile.gcov | FileCheck %s --check-prefix=SHOW1
+SHOW1: Function: main: 364084, 0, 6 sampled lines
+SHOW1: 2.3: inlined callee: _Z3fool: 243786, 0, 3 sampled lines
+SHOW1:   1.3: inlined callee: _Z3bari: 0, 0, 2 sampled lines
+SHOW1:   1.7: inlined callee: _Z3bari: 98558, 0, 2 sampled lines
+SHOW1:   1.8: inlined callee: _Z3bari: 0, 0, 2 sampled lines
+
+2- Convert the profile to text encoding and check that they are both
+   identical.
+RUN: llvm-profdata merge --sample %p/Inputs/gcc-sample-profile.gcov --text -o - | llvm-profdata show --sample - -o %t-text
+RUN: llvm-profdata show --sample %p/Inputs/gcc-sample-profile.gcov -o %t-gcov
+RUN: diff %t-text %t-gcov
+
+4- Merge the gcov and text encodings of the profile and check that the
+   counters have doubled.
+RUN: llvm-profdata merge --sample --text %p/Inputs/gcc-sample-profile.gcov -o %t-gcov
+RUN: llvm-profdata merge --sample --text %p/Inputs/gcc-sample-profile.gcov %t-gcov -o - | FileCheck %s --check-prefix=MERGE1
+MERGE1: main:728168:0
+MERGE1: 2.3: 120298
+MERGE1: 2.3: _Z3fool:487572