Revert r310857 due to internal test failure

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@310907 91177308-0d34-0410-b5e6-96231b3b80d8

3 files changed, 13 insertions, 36 deletions

diff --git a/lib/profile/InstrProfilingFile.c b/lib/profile/InstrProfilingFile.c
index ddfa39225..d038bb9cb 100644
--- a/lib/profile/InstrProfilingFile.c
+++ b/lib/profile/InstrProfilingFile.c
@@ -513,29 +513,23 @@ const char *__llvm_profile_get_path_prefix(void) {
 COMPILER_RT_VISIBILITY
 void __llvm_profile_initialize_file(void) {
   const char *EnvFilenamePat;
+  const char *SelectedPat = NULL;
+  ProfileNameSpecifier PNS = PNS_unknown;
   int hasCommandLineOverrider = (INSTR_PROF_PROFILE_NAME_VAR[0] != 0);
 
   EnvFilenamePat = getFilenamePatFromEnv();
-  if (EnvFilenamePat)
-    parseAndSetFilename(EnvFilenamePat, PNS_environment, 0);
-  else if (hasCommandLineOverrider) {
-    const char *SelectedPat = INSTR_PROF_PROFILE_NAME_VAR;
-
-    size_t PrefixLen;
-    int StripLen;
-    const char *Prefix = lprofGetPathPrefix(&StripLen, &PrefixLen);
-    if (Prefix != NULL) {
-      char *StripPat =
-          COMPILER_RT_ALLOCA(PrefixLen + 1 + strlen(SelectedPat) + 1);
-      lprofApplyPathPrefix(StripPat, SelectedPat, Prefix, PrefixLen, StripLen);
-      SelectedPat = StripPat;
-    }
-
-    parseAndSetFilename(SelectedPat, PNS_command_line, Prefix ? 1 : 0);
+  if (EnvFilenamePat) {
+    SelectedPat = EnvFilenamePat;
+    PNS = PNS_environment;
+  } else if (hasCommandLineOverrider) {
+    SelectedPat = INSTR_PROF_PROFILE_NAME_VAR;
+    PNS = PNS_command_line;
   } else {
-    parseAndSetFilename(NULL, PNS_default, 0);
+    SelectedPat = NULL;
+    PNS = PNS_default;
   }
 
+  parseAndSetFilename(SelectedPat, PNS, 0);
 }
 
 /* This API is directly called by the user application code. It has the
diff --git a/lib/profile/InstrProfilingUtil.c b/lib/profile/InstrProfilingUtil.c
index bed97e526..fb68f30a5 100644
--- a/lib/profile/InstrProfilingUtil.c
+++ b/lib/profile/InstrProfilingUtil.c
@@ -196,8 +196,7 @@ lprofApplyPathPrefix(char *Dest, const char *PathStr, const char *Prefix,
 
   memcpy(Dest, Prefix, PrefixLen);
 
-  if (!IS_DIR_SEPARATOR(Prefix[PrefixLen - 1]) &&
-      !IS_DIR_SEPARATOR(StrippedPathStr[0]))
+  if (!IS_DIR_SEPARATOR(Prefix[PrefixLen - 1]))
     Dest[PrefixLen++] = DIR_SEPARATOR;
 
   memcpy(Dest + PrefixLen, StrippedPathStr, strlen(StrippedPathStr) + 1);
diff --git a/test/profile/instrprof-path.c b/test/profile/instrprof-path.c
index ff0586b8d..28ee8ad0a 100644
--- a/test/profile/instrprof-path.c
+++ b/test/profile/instrprof-path.c
@@ -1,8 +1,6 @@
 // RUN: %clang_pgogen -O2 -o %t.0 %s
 // RUN: %clang_pgogen=%t.d1 -O2 -o %t.1 %s
 // RUN: %clang_pgogen=%t.d1/%t.d2 -O2 -o %t.2 %s
-// RUN: %clang_pgogen=a/b/c/d -O2 -o %t.3 %s
-// RUN: %clang_pgogen=/a/b/c/d -O2 -o %t.4 %s
 //
 // RUN: %run %t.0  ""
 // RUN: env LLVM_PROFILE_FILE=%t.d1/default.profraw %run %t.0  %t.d1/
@@ -11,17 +9,6 @@
 // RUN: %run %t.2 %t.d1/%t.d2/
 // RUN: %run %t.2 %t.d1/%t.d2/ %t.d1/%t.d2/%t.d3/blah.profraw %t.d1/%t.d2/%t.d3/
 
-// RUN: env GCOV_PREFIX=%t.prefix %run %t.3  %t.prefix/a/b/c/d/
-// RUN: env GCOV_PREFIX=%t.prefix env GCOV_PREFIX_STRIP=1 %run %t.3 %t.prefix/b/c/d/ 
-// RUN: env GCOV_PREFIX=%t.prefix env GCOV_PREFIX_STRIP=2 %run  %t.3  %t.prefix/c/d/ 
-// RUN: env GCOV_PREFIX=%t.prefix env GCOV_PREFIX_STRIP=3 %run %t.3  %t.prefix/d/
-
-// RUN: env GCOV_PREFIX=%t.prefix %run %t.4  %t.prefix/a/b/c/d/
-// RUN: env GCOV_PREFIX=%t.prefix env GCOV_PREFIX_STRIP=1 %run %t.4 %t.prefix/b/c/d/ 
-// RUN: env GCOV_PREFIX=%t.prefix env GCOV_PREFIX_STRIP=2 %run %t.4  %t.prefix/c/d/ 
-// RUN: env GCOV_PREFIX=%t.prefix env GCOV_PREFIX_STRIP=3 %run %t.4  %t.prefix/d/
-
-#include <stdio.h>
 #include <string.h>
 
 const char *__llvm_profile_get_path_prefix();
@@ -37,11 +24,8 @@ int main(int argc, const char *argv[]) {
   expected = argv[1];
   prefix = __llvm_profile_get_path_prefix();
 
-  if (strcmp(prefix, expected)) {
-    fprintf(stderr, "Expected = %s\n", expected);
-    fprintf(stderr, "  Actual = %s\n", prefix);
+  if (strcmp(prefix, expected))
     return 1;
-  }
 
   if (argc == 4) {
     __llvm_profile_set_filename(argv[2]);