[llvm] r232785 - test: Make a start on a test suite for libLTO.
Peter Collingbourne
peter at pcc.me.uk
Thu Mar 19 16:55:38 PDT 2015
Author: pcc
Date: Thu Mar 19 18:55:38 2015
New Revision: 232785
URL: http://llvm.org/viewvc/llvm-project?rev=232785&view=rev
Log:
test: Make a start on a test suite for libLTO.
This works in a similar way to the gold plugin tests. We search for a compatible
linker on $PATH and use it to run tests against our just-built libLTO. To start
with, test the just added opt level functionality.
Differential Revision: http://reviews.llvm.org/D8472
Added:
llvm/trunk/test/tools/lto/
llvm/trunk/test/tools/lto/lit.local.cfg
llvm/trunk/test/tools/lto/opt-level.ll
Modified:
llvm/trunk/cmake/config-ix.cmake
llvm/trunk/test/CMakeLists.txt
llvm/trunk/test/Makefile
llvm/trunk/test/lit.cfg
llvm/trunk/test/lit.site.cfg.in
Modified: llvm/trunk/cmake/config-ix.cmake
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/cmake/config-ix.cmake?rev=232785&r1=232784&r2=232785&view=diff
==============================================================================
--- llvm/trunk/cmake/config-ix.cmake (original)
+++ llvm/trunk/cmake/config-ix.cmake Thu Mar 19 18:55:38 2015
@@ -532,6 +532,10 @@ if(GOLD_EXECUTABLE)
"PATH to binutils/include containing plugin-api.h for gold plugin.")
endif()
+if(APPLE)
+ find_program(LD64_EXECUTABLE NAMES ld DOC "The ld64 linker")
+endif()
+
include(FindOCaml)
include(AddOCaml)
if(WIN32)
Modified: llvm/trunk/test/CMakeLists.txt
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CMakeLists.txt?rev=232785&r1=232784&r2=232785&view=diff
==============================================================================
--- llvm/trunk/test/CMakeLists.txt (original)
+++ llvm/trunk/test/CMakeLists.txt Thu Mar 19 18:55:38 2015
@@ -70,6 +70,10 @@ if(TARGET llvm-go)
set(LLVM_TEST_DEPENDS ${LLVM_TEST_DEPENDS} llvm-go)
endif()
+if(APPLE)
+ set(LLVM_TEST_DEPENDS ${LLVM_TEST_DEPENDS} LTO)
+endif()
+
if(TARGET ocaml_llvm)
set(LLVM_TEST_DEPENDS ${LLVM_TEST_DEPENDS}
ocaml_llvm
Modified: llvm/trunk/test/Makefile
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Makefile?rev=232785&r1=232784&r2=232785&view=diff
==============================================================================
--- llvm/trunk/test/Makefile (original)
+++ llvm/trunk/test/Makefile Thu Mar 19 18:55:38 2015
@@ -129,6 +129,7 @@ lit.site.cfg: FORCE
@$(ECHOPATH) s=@EXEEXT@=$(EXEEXT)=g >> lit.tmp
@$(ECHOPATH) s=@PYTHON_EXECUTABLE@=$(PYTHON)=g >> lit.tmp
@$(ECHOPATH) s=@GOLD_EXECUTABLE@=ld=g >> lit.tmp
+ @$(ECHOPATH) s=@LD64_EXECUTABLE@=ld=g >> lit.tmp
@$(ECHOPATH) s=@OCAMLFIND@=$(OCAMLFIND)=g >> lit.tmp
@$(ECHOPATH) s!@OCAMLFLAGS@!$(addprefix -cclib ,$(LDFLAGS))!g >> lit.tmp
@$(ECHOPATH) s=@HAVE_OCAMLOPT@=$(HAVE_OCAMLOPT)=g >> lit.tmp
Modified: llvm/trunk/test/lit.cfg
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/lit.cfg?rev=232785&r1=232784&r2=232785&view=diff
==============================================================================
--- llvm/trunk/test/lit.cfg (original)
+++ llvm/trunk/test/lit.cfg Thu Mar 19 18:55:38 2015
@@ -188,6 +188,7 @@ config.substitutions.append( ('%llc_dwar
# Add site-specific substitutions.
config.substitutions.append( ('%gold', config.gold_executable) )
+config.substitutions.append( ('%ld64', config.ld64_executable) )
config.substitutions.append( ('%go', config.go_executable) )
config.substitutions.append( ('%llvmshlibdir', config.llvm_shlib_dir) )
config.substitutions.append( ('%shlibext', config.llvm_shlib_ext) )
@@ -369,6 +370,22 @@ def have_ld_plugin_support():
if have_ld_plugin_support():
config.available_features.add('ld_plugin')
+def have_ld64_plugin_support():
+ if config.ld64_executable == '':
+ return False
+
+ ld_cmd = subprocess.Popen([config.ld64_executable, '-v'], stderr = subprocess.PIPE)
+ ld_out = ld_cmd.stderr.read().decode()
+ ld_cmd.wait()
+
+ if 'ld64' not in ld_out or 'LTO' not in ld_out:
+ return False
+
+ return True
+
+if have_ld64_plugin_support():
+ config.available_features.add('ld64_plugin')
+
# Ask llvm-config about assertion mode.
try:
llvm_config_cmd = subprocess.Popen(
Modified: llvm/trunk/test/lit.site.cfg.in
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/lit.site.cfg.in?rev=232785&r1=232784&r2=232785&view=diff
==============================================================================
--- llvm/trunk/test/lit.site.cfg.in (original)
+++ llvm/trunk/test/lit.site.cfg.in Thu Mar 19 18:55:38 2015
@@ -14,6 +14,7 @@ config.llvm_exe_ext = "@EXEEXT@"
config.lit_tools_dir = "@LLVM_LIT_TOOLS_DIR@"
config.python_executable = "@PYTHON_EXECUTABLE@"
config.gold_executable = "@GOLD_EXECUTABLE@"
+config.ld64_executable = "@LD64_EXECUTABLE@"
config.ocamlfind_executable = "@OCAMLFIND@"
config.have_ocamlopt = "@HAVE_OCAMLOPT@"
config.have_ocaml_ounit = "@HAVE_OCAML_OUNIT@"
Added: llvm/trunk/test/tools/lto/lit.local.cfg
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/lto/lit.local.cfg?rev=232785&view=auto
==============================================================================
--- llvm/trunk/test/tools/lto/lit.local.cfg (added)
+++ llvm/trunk/test/tools/lto/lit.local.cfg Thu Mar 19 18:55:38 2015
@@ -0,0 +1,2 @@
+if not 'ld64_plugin' in config.available_features:
+ config.unsupported = True
Added: llvm/trunk/test/tools/lto/opt-level.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/lto/opt-level.ll?rev=232785&view=auto
==============================================================================
--- llvm/trunk/test/tools/lto/opt-level.ll (added)
+++ llvm/trunk/test/tools/lto/opt-level.ll Thu Mar 19 18:55:38 2015
@@ -0,0 +1,20 @@
+; RUN: llvm-as %s -o %t.o
+; RUN: env DYLD_LIBRARY_PATH=%llvmshlibdir %ld64 -arch x86_64 -dylib -mllvm -O0 -o %t.dylib %t.o
+; RUN: llvm-nm -no-llvm-bc %t.dylib | FileCheck --check-prefix=CHECK-O0 %s
+; RUN: env DYLD_LIBRARY_PATH=%llvmshlibdir %ld64 -arch x86_64 -dylib -mllvm -O2 -o %t.dylib %t.o
+; RUN: llvm-nm -no-llvm-bc %t.dylib | FileCheck --check-prefix=CHECK-O2 %s
+
+target triple = "x86_64-apple-macosx10.8.0"
+
+; CHECK-O0: t _f1
+; CHECK-O2-NOT: _f1
+define internal void @f1() {
+ ret void
+}
+
+; CHECK-O0: T _f2
+; CHECK-O2: T _f2
+define void @f2() {
+ call void @f1()
+ ret void
+}
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