55891fc71e
This reverts 295092 (re-applies 295084), with a fix for dangling references from the array of coverage names passed down from frontends. I missed this in my initial testing because I only checked test/Profile, and not test/CoverageMapping as well. Original commit message: The profile name variables passed to counter increment intrinsics are dead after we emit the finalized name data in __llvm_prf_nm. However, we neglect to erase these name variables. This causes huge size increases in the __TEXT,__const section as well as slowdowns when linker dead stripping is disabled. Some affected projects are so massive that they fail to link on Darwin, because only the small code model is supported. Fix the issue by throwing away the name constants as soon as we're done with them. Differential Revision: https://reviews.llvm.org/D29921 llvm-svn: 295099
50 lines
2.7 KiB
LLVM
50 lines
2.7 KiB
LLVM
;; Checks for platform specific section names and initialization code.
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; RUN: opt < %s -mtriple=x86_64-apple-macosx10.10.0 -instrprof -S | FileCheck %s -check-prefix=MACHO
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; RUN: opt < %s -mtriple=x86_64-apple-macosx10.10.0 -passes=instrprof -S | FileCheck %s -check-prefix=MACHO
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; RUN: opt < %s -mtriple=x86_64-unknown-linux -instrprof -S | FileCheck %s -check-prefix=LINUX
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; RUN: opt < %s -mtriple=x86_64-unknown-linux -passes=instrprof -S | FileCheck %s -check-prefix=LINUX
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; RUN: opt < %s -mtriple=x86_64-unknown-freebsd -instrprof -S | FileCheck %s -check-prefix=FREEBSD
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; RUN: opt < %s -mtriple=x86_64-unknown-freebsd -passes=instrprof -S | FileCheck %s -check-prefix=FREEBSD
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; RUN: opt < %s -mtriple=x86_64-scei-ps4 -instrprof -S | FileCheck %s -check-prefix=PS4
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; RUN: opt < %s -mtriple=x86_64-scei-ps4 -passes=instrprof -S | FileCheck %s -check-prefix=PS4
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; RUN: opt < %s -mtriple=x86_64-pc-solaris -instrprof -S | FileCheck %s -check-prefix=SOLARIS
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; RUN: opt < %s -mtriple=x86_64-pc-solaris -passes=instrprof -S | FileCheck %s -check-prefix=SOLARIS
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@__profn_foo = hidden constant [3 x i8] c"foo"
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; MACHO-NOT: __profn_foo
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; ELF-NOT: __profn_foo
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; MACHO: @__profc_foo = hidden global [1 x i64] zeroinitializer, section "__DATA,__llvm_prf_cnts", align 8
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; ELF: @__profc_foo = hidden global [1 x i64] zeroinitializer, section "__llvm_prf_cnts", align 8
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; MACHO: @__profd_foo = hidden {{.*}}, section "__DATA,__llvm_prf_data,regular,live_support", align 8
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; LINUX: @__profd_foo = hidden {{.*}}, section "__llvm_prf_data", align 8
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; FREEBSD: @__profd_foo = hidden {{.*}}, section "__llvm_prf_data", align 8
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; PS4: @__profd_foo = hidden {{.*}}, section "__llvm_prf_data", align 8
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; SOLARIS: @__profd_foo = hidden {{.*}}, section "__llvm_prf_data", align 8
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; ELF: @__llvm_prf_nm = private constant [{{.*}} x i8] c"{{.*}}", section "{{.*}}__llvm_prf_names"
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define void @foo() {
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call void @llvm.instrprof.increment(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @__profn_foo, i32 0, i32 0), i64 0, i32 1, i32 0)
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ret void
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}
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declare void @llvm.instrprof.increment(i8*, i64, i32, i32)
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;; Emit registration functions for platforms that don't find the
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;; symbols by their sections.
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; MACHO-NOT: define internal void @__llvm_profile_register_functions
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; LINUX-NOT: define internal void @__llvm_profile_register_functions
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; FREEBSD-NOT: define internal void @__llvm_profile_register_functions
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; PS4-NOT: define internal void @__llvm_profile_register_functions
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; SOLARIS: define internal void @__llvm_profile_register_functions
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; MACHO-NOT: define internal void @__llvm_profile_init
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; LINUX-NOT: define internal void @__llvm_profile_init
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; FREEBSD-NOT: define internal void @__llvm_profile_init
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; PS4-NOT: define internal void @__llvm_profile_init
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; SOLARIS: define internal void @__llvm_profile_init
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