[llvm] r339294 - [ADT] Normalize empty triple components

Petr Hosek via llvm-commits llvm-commits at lists.llvm.org
Wed Aug 8 15:23:57 PDT 2018


Author: phosek
Date: Wed Aug  8 15:23:57 2018
New Revision: 339294

URL: http://llvm.org/viewvc/llvm-project?rev=339294&view=rev
Log:
[ADT] Normalize empty triple components

LLVM triple normalization is handling "unknown" and empty components
differently; for example given "x86_64-unknown-linux-gnu" and
"x86_64-linux-gnu" which should be equivalent, triple normalization
returns "x86_64-unknown-linux-gnu" and "x86_64--linux-gnu". autoconf's
config.sub returns "x86_64-unknown-linux-gnu" for both
"x86_64-linux-gnu" and "x86_64-unknown-linux-gnu". This changes the
triple normalization to behave the same way, replacing empty triple
components with "unknown".

This addresses PR37129.

Differential Revision: https://reviews.llvm.org/D50219

Modified:
    llvm/trunk/lib/Support/Triple.cpp
    llvm/trunk/test/CodeGen/ARM/invalid-target.ll
    llvm/trunk/tools/llvm-mc/llvm-mc.cpp
    llvm/trunk/tools/llvm-mca/llvm-mca.cpp
    llvm/trunk/tools/llvm-objdump/llvm-objdump.cpp
    llvm/trunk/unittests/ADT/TripleTest.cpp

Modified: llvm/trunk/lib/Support/Triple.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Support/Triple.cpp?rev=339294&r1=339293&r2=339294&view=diff
==============================================================================
--- llvm/trunk/lib/Support/Triple.cpp (original)
+++ llvm/trunk/lib/Support/Triple.cpp Wed Aug  8 15:23:57 2018
@@ -887,6 +887,12 @@ std::string Triple::normalize(StringRef
     }
   }
 
+  // Replace empty components with "unknown" value.
+  for (unsigned i = 0, e = Components.size(); i < e; ++i) {
+    if (Components[i].empty())
+      Components[i] = "unknown";
+  }
+
   // Special case logic goes here.  At this point Arch, Vendor and OS have the
   // correct values for the computed components.
   std::string NormalizedEnvironment;

Modified: llvm/trunk/test/CodeGen/ARM/invalid-target.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/ARM/invalid-target.ll?rev=339294&r1=339293&r2=339294&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/ARM/invalid-target.ll (original)
+++ llvm/trunk/test/CodeGen/ARM/invalid-target.ll Wed Aug  8 15:23:57 2018
@@ -22,11 +22,11 @@
 ; RUN: not llc -mtriple aarch64invalid-linux-gnu %s -o - 2>&1 | \
 ; RUN: FileCheck %s --check-prefix=AARCH64INVALID
 
-; ARMVINVALID: error: unable to get target for 'armvinvalid--linux-gnueabi'
-; ARMEBVINVALID: error: unable to get target for 'armebvinvalid--linux-gnueabi'
-; THUMBVINVALID: error: unable to get target for 'thumbvinvalid--linux-gnueabi'
-; THUMBEBVINVALID: error: unable to get target for 'thumbebvinvalid--linux-gnueabi'
-; THUMBV2: error: unable to get target for 'thumbv2--linux-gnueabi'
-; THUMBV3: error: unable to get target for 'thumbv3--linux-gnueabi'
-; ARM64INVALID: error: unable to get target for 'arm64invalid--linux-gnu'
-; AARCH64INVALID: error: unable to get target for 'aarch64invalid--linux-gnu'
+; ARMVINVALID: error: unable to get target for 'armvinvalid-unknown-linux-gnueabi'
+; ARMEBVINVALID: error: unable to get target for 'armebvinvalid-unknown-linux-gnueabi'
+; THUMBVINVALID: error: unable to get target for 'thumbvinvalid-unknown-linux-gnueabi'
+; THUMBEBVINVALID: error: unable to get target for 'thumbebvinvalid-unknown-linux-gnueabi'
+; THUMBV2: error: unable to get target for 'thumbv2-unknown-linux-gnueabi'
+; THUMBV3: error: unable to get target for 'thumbv3-unknown-linux-gnueabi'
+; ARM64INVALID: error: unable to get target for 'arm64invalid-unknown-linux-gnu'
+; AARCH64INVALID: error: unable to get target for 'aarch64invalid-unknown-linux-gnu'

Modified: llvm/trunk/tools/llvm-mc/llvm-mc.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-mc/llvm-mc.cpp?rev=339294&r1=339293&r2=339294&view=diff
==============================================================================
--- llvm/trunk/tools/llvm-mc/llvm-mc.cpp (original)
+++ llvm/trunk/tools/llvm-mc/llvm-mc.cpp Wed Aug  8 15:23:57 2018
@@ -313,7 +313,6 @@ int main(int argc, char **argv) {
 
   cl::ParseCommandLineOptions(argc, argv, "llvm machine code playground\n");
   MCTargetOptions MCOptions = InitMCTargetOptionsFromFlags();
-  TripleName = Triple::normalize(TripleName);
   setDwarfDebugFlags(argc, argv);
 
   setDwarfDebugProducer();

Modified: llvm/trunk/tools/llvm-mca/llvm-mca.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-mca/llvm-mca.cpp?rev=339294&r1=339293&r2=339294&view=diff
==============================================================================
--- llvm/trunk/tools/llvm-mca/llvm-mca.cpp (original)
+++ llvm/trunk/tools/llvm-mca/llvm-mca.cpp Wed Aug  8 15:23:57 2018
@@ -180,7 +180,6 @@ static cl::opt<bool>
 namespace {
 
 const Target *getTarget(const char *ProgName) {
-  TripleName = Triple::normalize(TripleName);
   if (TripleName.empty())
     TripleName = Triple::normalize(sys::getDefaultTargetTriple());
   Triple TheTriple(TripleName);

Modified: llvm/trunk/tools/llvm-objdump/llvm-objdump.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-objdump/llvm-objdump.cpp?rev=339294&r1=339293&r2=339294&view=diff
==============================================================================
--- llvm/trunk/tools/llvm-objdump/llvm-objdump.cpp (original)
+++ llvm/trunk/tools/llvm-objdump/llvm-objdump.cpp Wed Aug  8 15:23:57 2018
@@ -2382,7 +2382,6 @@ int main(int argc, char **argv) {
   cl::AddExtraVersionPrinter(TargetRegistry::printRegisteredTargetsForVersion);
 
   cl::ParseCommandLineOptions(argc, argv, "llvm object file dumper\n");
-  TripleName = Triple::normalize(TripleName);
 
   ToolName = argv[0];
 

Modified: llvm/trunk/unittests/ADT/TripleTest.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/unittests/ADT/TripleTest.cpp?rev=339294&r1=339293&r2=339294&view=diff
==============================================================================
--- llvm/trunk/unittests/ADT/TripleTest.cpp (original)
+++ llvm/trunk/unittests/ADT/TripleTest.cpp Wed Aug  8 15:23:57 2018
@@ -378,22 +378,33 @@ TEST(TripleTest, ParsedIDs) {
 }
 
 static std::string Join(StringRef A, StringRef B, StringRef C) {
-  std::string Str = A; Str += '-'; Str += B; Str += '-'; Str += C;
+  std::string Str = A;
+  Str += '-';
+  Str += B;
+  Str += '-';
+  Str += C;
   return Str;
 }
 
 static std::string Join(StringRef A, StringRef B, StringRef C, StringRef D) {
-  std::string Str = A; Str += '-'; Str += B; Str += '-'; Str += C; Str += '-';
-  Str += D; return Str;
+  std::string Str = A;
+  Str += '-';
+  Str += B;
+  Str += '-';
+  Str += C;
+  Str += '-';
+  Str += D;
+  return Str;
 }
 
 TEST(TripleTest, Normalization) {
 
-  EXPECT_EQ("", Triple::normalize(""));
-  EXPECT_EQ("-", Triple::normalize("-"));
-  EXPECT_EQ("--", Triple::normalize("--"));
-  EXPECT_EQ("---", Triple::normalize("---"));
-  EXPECT_EQ("----", Triple::normalize("----"));
+  EXPECT_EQ("unknown", Triple::normalize(""));
+  EXPECT_EQ("unknown-unknown", Triple::normalize("-"));
+  EXPECT_EQ("unknown-unknown-unknown", Triple::normalize("--"));
+  EXPECT_EQ("unknown-unknown-unknown-unknown", Triple::normalize("---"));
+  EXPECT_EQ("unknown-unknown-unknown-unknown-unknown",
+            Triple::normalize("----"));
 
   EXPECT_EQ("a", Triple::normalize("a"));
   EXPECT_EQ("a-b", Triple::normalize("a-b"));
@@ -406,24 +417,24 @@ TEST(TripleTest, Normalization) {
   EXPECT_EQ("i386-a-b-c", Triple::normalize("a-b-c-i386"));
 
   EXPECT_EQ("a-pc-c", Triple::normalize("a-pc-c"));
-  EXPECT_EQ("-pc-b-c", Triple::normalize("pc-b-c"));
+  EXPECT_EQ("unknown-pc-b-c", Triple::normalize("pc-b-c"));
   EXPECT_EQ("a-pc-b", Triple::normalize("a-b-pc"));
   EXPECT_EQ("a-pc-b-c", Triple::normalize("a-b-c-pc"));
 
   EXPECT_EQ("a-b-linux", Triple::normalize("a-b-linux"));
-  EXPECT_EQ("--linux-b-c", Triple::normalize("linux-b-c"));
-  EXPECT_EQ("a--linux-c", Triple::normalize("a-linux-c"));
+  EXPECT_EQ("unknown-unknown-linux-b-c", Triple::normalize("linux-b-c"));
+  EXPECT_EQ("a-unknown-linux-c", Triple::normalize("a-linux-c"));
 
   EXPECT_EQ("i386-pc-a", Triple::normalize("a-pc-i386"));
-  EXPECT_EQ("i386-pc-", Triple::normalize("-pc-i386"));
-  EXPECT_EQ("-pc-linux-c", Triple::normalize("linux-pc-c"));
-  EXPECT_EQ("-pc-linux", Triple::normalize("linux-pc-"));
+  EXPECT_EQ("i386-pc-unknown", Triple::normalize("-pc-i386"));
+  EXPECT_EQ("unknown-pc-linux-c", Triple::normalize("linux-pc-c"));
+  EXPECT_EQ("unknown-pc-linux", Triple::normalize("linux-pc-"));
 
   EXPECT_EQ("i386", Triple::normalize("i386"));
-  EXPECT_EQ("-pc", Triple::normalize("pc"));
-  EXPECT_EQ("--linux", Triple::normalize("linux"));
+  EXPECT_EQ("unknown-pc", Triple::normalize("pc"));
+  EXPECT_EQ("unknown-unknown-linux", Triple::normalize("linux"));
 
-  EXPECT_EQ("x86_64--linux-gnu", Triple::normalize("x86_64-gnu-linux"));
+  EXPECT_EQ("x86_64-unknown-linux-gnu", Triple::normalize("x86_64-gnu-linux"));
 
   // Check that normalizing a permutated set of valid components returns a
   // triple with the unpermuted components.
@@ -499,12 +510,18 @@ TEST(TripleTest, Normalization) {
 
   // Various real-world funky triples.  The value returned by GCC's config.sub
   // is given in the comment.
-  EXPECT_EQ("i386--windows-gnu", Triple::normalize("i386-mingw32")); // i386-pc-mingw32
-  EXPECT_EQ("x86_64--linux-gnu", Triple::normalize("x86_64-linux-gnu")); // x86_64-pc-linux-gnu
-  EXPECT_EQ("i486--linux-gnu", Triple::normalize("i486-linux-gnu")); // i486-pc-linux-gnu
-  EXPECT_EQ("i386-redhat-linux", Triple::normalize("i386-redhat-linux")); // i386-redhat-linux-gnu
-  EXPECT_EQ("i686--linux", Triple::normalize("i686-linux")); // i686-pc-linux-gnu
-  EXPECT_EQ("arm-none--eabi", Triple::normalize("arm-none-eabi")); // arm-none-eabi
+  EXPECT_EQ("i386-unknown-windows-gnu",
+            Triple::normalize("i386-mingw32")); // i386-pc-mingw32
+  EXPECT_EQ("x86_64-unknown-linux-gnu",
+            Triple::normalize("x86_64-linux-gnu")); // x86_64-pc-linux-gnu
+  EXPECT_EQ("i486-unknown-linux-gnu",
+            Triple::normalize("i486-linux-gnu")); // i486-pc-linux-gnu
+  EXPECT_EQ("i386-redhat-linux",
+            Triple::normalize("i386-redhat-linux")); // i386-redhat-linux-gnu
+  EXPECT_EQ("i686-unknown-linux",
+            Triple::normalize("i686-linux")); // i686-pc-linux-gnu
+  EXPECT_EQ("arm-none-unknown-eabi",
+            Triple::normalize("arm-none-eabi")); // arm-none-eabi
 }
 
 TEST(TripleTest, MutateName) {
@@ -1077,38 +1094,46 @@ TEST(TripleTest, FileFormat) {
 
 TEST(TripleTest, NormalizeWindows) {
   EXPECT_EQ("i686-pc-windows-msvc", Triple::normalize("i686-pc-win32"));
-  EXPECT_EQ("i686--windows-msvc", Triple::normalize("i686-win32"));
+  EXPECT_EQ("i686-unknown-windows-msvc", Triple::normalize("i686-win32"));
   EXPECT_EQ("i686-pc-windows-gnu", Triple::normalize("i686-pc-mingw32"));
-  EXPECT_EQ("i686--windows-gnu", Triple::normalize("i686-mingw32"));
+  EXPECT_EQ("i686-unknown-windows-gnu", Triple::normalize("i686-mingw32"));
   EXPECT_EQ("i686-pc-windows-gnu", Triple::normalize("i686-pc-mingw32-w64"));
-  EXPECT_EQ("i686--windows-gnu", Triple::normalize("i686-mingw32-w64"));
+  EXPECT_EQ("i686-unknown-windows-gnu", Triple::normalize("i686-mingw32-w64"));
   EXPECT_EQ("i686-pc-windows-cygnus", Triple::normalize("i686-pc-cygwin"));
-  EXPECT_EQ("i686--windows-cygnus", Triple::normalize("i686-cygwin"));
+  EXPECT_EQ("i686-unknown-windows-cygnus", Triple::normalize("i686-cygwin"));
 
   EXPECT_EQ("x86_64-pc-windows-msvc", Triple::normalize("x86_64-pc-win32"));
-  EXPECT_EQ("x86_64--windows-msvc", Triple::normalize("x86_64-win32"));
+  EXPECT_EQ("x86_64-unknown-windows-msvc", Triple::normalize("x86_64-win32"));
   EXPECT_EQ("x86_64-pc-windows-gnu", Triple::normalize("x86_64-pc-mingw32"));
-  EXPECT_EQ("x86_64--windows-gnu", Triple::normalize("x86_64-mingw32"));
-  EXPECT_EQ("x86_64-pc-windows-gnu", Triple::normalize("x86_64-pc-mingw32-w64"));
-  EXPECT_EQ("x86_64--windows-gnu", Triple::normalize("x86_64-mingw32-w64"));
+  EXPECT_EQ("x86_64-unknown-windows-gnu", Triple::normalize("x86_64-mingw32"));
+  EXPECT_EQ("x86_64-pc-windows-gnu",
+            Triple::normalize("x86_64-pc-mingw32-w64"));
+  EXPECT_EQ("x86_64-unknown-windows-gnu",
+            Triple::normalize("x86_64-mingw32-w64"));
 
   EXPECT_EQ("i686-pc-windows-elf", Triple::normalize("i686-pc-win32-elf"));
-  EXPECT_EQ("i686--windows-elf", Triple::normalize("i686-win32-elf"));
+  EXPECT_EQ("i686-unknown-windows-elf", Triple::normalize("i686-win32-elf"));
   EXPECT_EQ("i686-pc-windows-macho", Triple::normalize("i686-pc-win32-macho"));
-  EXPECT_EQ("i686--windows-macho", Triple::normalize("i686-win32-macho"));
+  EXPECT_EQ("i686-unknown-windows-macho",
+            Triple::normalize("i686-win32-macho"));
 
   EXPECT_EQ("x86_64-pc-windows-elf", Triple::normalize("x86_64-pc-win32-elf"));
-  EXPECT_EQ("x86_64--windows-elf", Triple::normalize("x86_64-win32-elf"));
-  EXPECT_EQ("x86_64-pc-windows-macho", Triple::normalize("x86_64-pc-win32-macho"));
-  EXPECT_EQ("x86_64--windows-macho", Triple::normalize("x86_64-win32-macho"));
+  EXPECT_EQ("x86_64-unknown-windows-elf",
+            Triple::normalize("x86_64-win32-elf"));
+  EXPECT_EQ("x86_64-pc-windows-macho",
+            Triple::normalize("x86_64-pc-win32-macho"));
+  EXPECT_EQ("x86_64-unknown-windows-macho",
+            Triple::normalize("x86_64-win32-macho"));
 
   EXPECT_EQ("i686-pc-windows-cygnus",
             Triple::normalize("i686-pc-windows-cygnus"));
   EXPECT_EQ("i686-pc-windows-gnu", Triple::normalize("i686-pc-windows-gnu"));
-  EXPECT_EQ("i686-pc-windows-itanium", Triple::normalize("i686-pc-windows-itanium"));
+  EXPECT_EQ("i686-pc-windows-itanium",
+            Triple::normalize("i686-pc-windows-itanium"));
   EXPECT_EQ("i686-pc-windows-msvc", Triple::normalize("i686-pc-windows-msvc"));
 
-  EXPECT_EQ("i686-pc-windows-elf", Triple::normalize("i686-pc-windows-elf-elf"));
+  EXPECT_EQ("i686-pc-windows-elf",
+            Triple::normalize("i686-pc-windows-elf-elf"));
 }
 
 TEST(TripleTest, getARMCPUForArch) {
@@ -1175,14 +1200,22 @@ TEST(TripleTest, getARMCPUForArch) {
 }
 
 TEST(TripleTest, NormalizeARM) {
-  EXPECT_EQ("armv6--netbsd-eabi", Triple::normalize("armv6-netbsd-eabi"));
-  EXPECT_EQ("armv7--netbsd-eabi", Triple::normalize("armv7-netbsd-eabi"));
-  EXPECT_EQ("armv6eb--netbsd-eabi", Triple::normalize("armv6eb-netbsd-eabi"));
-  EXPECT_EQ("armv7eb--netbsd-eabi", Triple::normalize("armv7eb-netbsd-eabi"));
-  EXPECT_EQ("armv6--netbsd-eabihf", Triple::normalize("armv6-netbsd-eabihf"));
-  EXPECT_EQ("armv7--netbsd-eabihf", Triple::normalize("armv7-netbsd-eabihf"));
-  EXPECT_EQ("armv6eb--netbsd-eabihf", Triple::normalize("armv6eb-netbsd-eabihf"));
-  EXPECT_EQ("armv7eb--netbsd-eabihf", Triple::normalize("armv7eb-netbsd-eabihf"));
+  EXPECT_EQ("armv6-unknown-netbsd-eabi",
+            Triple::normalize("armv6-netbsd-eabi"));
+  EXPECT_EQ("armv7-unknown-netbsd-eabi",
+            Triple::normalize("armv7-netbsd-eabi"));
+  EXPECT_EQ("armv6eb-unknown-netbsd-eabi",
+            Triple::normalize("armv6eb-netbsd-eabi"));
+  EXPECT_EQ("armv7eb-unknown-netbsd-eabi",
+            Triple::normalize("armv7eb-netbsd-eabi"));
+  EXPECT_EQ("armv6-unknown-netbsd-eabihf",
+            Triple::normalize("armv6-netbsd-eabihf"));
+  EXPECT_EQ("armv7-unknown-netbsd-eabihf",
+            Triple::normalize("armv7-netbsd-eabihf"));
+  EXPECT_EQ("armv6eb-unknown-netbsd-eabihf",
+            Triple::normalize("armv6eb-netbsd-eabihf"));
+  EXPECT_EQ("armv7eb-unknown-netbsd-eabihf",
+            Triple::normalize("armv7eb-netbsd-eabihf"));
 
   EXPECT_EQ("armv7-suse-linux-gnueabihf",
             Triple::normalize("armv7-suse-linux-gnueabi"));




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