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[PGO] Eliminate prof data register calls on FreeBSD platform

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This is a follow up patch of r250199 after verifying the start/stop
section symbols work as spected on FreeBSD.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@250679 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Xinliang David Li 2015-10-19 04:17:10 +00:00
parent a05c4c2bca
commit 0971eb7364
2 changed files with 11 additions and 5 deletions
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4
lib/Transforms/Instrumentation/InstrProfiling.cpp
View File

@ -258,7 +258,9 @@ void InstrProfiling::emitRegistration() {
return;
// Use linker script magic to get data/cnts/name start/end.
if (Triple(M->getTargetTriple()).isOSLinux()) return;
if (Triple(M->getTargetTriple()).isOSLinux() ||
Triple(M->getTargetTriple()).isOSFreeBSD())
return;
// Construct the function.
auto *VoidTy = Type::getVoidTy(M->getContext());

12
test/Instrumentation/InstrProfiling/platform.ll
View File

@ -2,7 +2,8 @@
; RUN: opt < %s -mtriple=x86_64-apple-macosx10.10.0 -instrprof -S | FileCheck %s -check-prefix=MACHO
; RUN: opt < %s -mtriple=x86_64-unknown-linux -instrprof -S | FileCheck %s -check-prefix=LINUX
; RUN: opt < %s -mtriple=x86_64-unknown-freebsd -instrprof -S | FileCheck %s -check-prefix=BSD
; RUN: opt < %s -mtriple=x86_64-unknown-freebsd -instrprof -S | FileCheck %s -check-prefix=FREEBSD
; RUN: opt < %s -mtriple=x86_64-pc-solaris -instrprof -S | FileCheck %s -check-prefix=SOLARIS
@__llvm_profile_name_foo = hidden constant [3 x i8] c"foo"
; MACHO: @__llvm_profile_name_foo = hidden constant [3 x i8] c"foo", section "__DATA,__llvm_prf_names", align 1
@ -13,7 +14,8 @@
; MACHO: @__llvm_profile_data_foo = hidden constant {{.*}}, section "__DATA,__llvm_prf_data", align 8
; LINUX: @__llvm_profile_data_foo = hidden constant {{.*}}, section "__llvm_prf_data", align 8
; BSD: @__llvm_profile_data_foo = hidden constant {{.*}}, section "__llvm_prf_data", align 8
; FREEBSD: @__llvm_profile_data_foo = hidden constant {{.*}}, section "__llvm_prf_data", align 8
; SOLARIS: @__llvm_profile_data_foo = hidden constant {{.*}}, section "__llvm_prf_data", align 8
define void @foo() {
call void @llvm.instrprof.increment(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @__llvm_profile_name_foo, i32 0, i32 0), i64 0, i32 1, i32 0)
ret void
@ -26,8 +28,10 @@ declare void @llvm.instrprof.increment(i8*, i64, i32, i32)
; MACHO-NOT: define internal void @__llvm_profile_register_functions
; LINUX-NOT: define internal void @__llvm_profile_register_functions
; BSD: define internal void @__llvm_profile_register_functions
; FREEBSD-NOT: define internal void @__llvm_profile_register_functions
; SOLARIS: define internal void @__llvm_profile_register_functions
; MACHO-NOT: define internal void @__llvm_profile_init
; LINUX-NOT: define internal void @__llvm_profile_init
; BSD: define internal void @__llvm_profile_init
; FREEBSD-NOT: define internal void @__llvm_profile_init
; SOLARIS: define internal void @__llvm_profile_init