derek.holloway
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120 lines
4.9 KiB
Plaintext
Executable File
120 lines
4.9 KiB
Plaintext
Executable File
// RUN: split-file %s %t
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// RUN: cd %t
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//
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//--- foo.c
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int foo() { return 3; }
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//--- main.c
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int foo();
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int main() { return foo() - 3; }
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// # no LTO
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// ## PGO, with and without function-sections, and all permutations of -bcdtors
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// RUN: %clang_pgogen -O2 -c -fno-function-sections foo.c
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// RUN: %clang_pgogen -O2 -c -fno-function-sections main.c
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//
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// RUN: %clang_pgogen -Wl,-bcdtors:all foo.o main.o
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// RUN: rm -f default* && %run ./a.out
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// RUN: llvm-profdata show --all-functions default* | FileCheck %s -check-prefix=BOTH
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//
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// RUN: %clang_pgogen -Wl,-bcdtors:mbr foo.o main.o
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// RUN: rm -f default* && %run ./a.out
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// RUN: llvm-profdata show --all-functions default* | FileCheck %s -check-prefix=BOTH
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// RUN: %clang_pgogen -O2 -c -ffunction-sections foo.c
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// RUN: %clang_pgogen -O2 -c -ffunction-sections main.c
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//
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// RUN: %clang_pgogen -Wl,-bcdtors:all foo.o main.o
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// RUN: rm -f default* && %run ./a.out
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// RUN: llvm-profdata show --all-functions default* | FileCheck %s -check-prefix=BOTH
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//
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// RUN: %clang_pgogen -Wl,-bcdtors:mbr foo.o main.o
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// RUN: rm -f default* && %run ./a.out
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// RUN: llvm-profdata show --all-functions default* | FileCheck %s -check-prefix=BOTH
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// ## no PGO at compile step, but PGO at link step.
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// RUN: %clang -O2 -c foo.c
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// RUN: %clang -O2 -c main.c
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//
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// RUN: %clang_pgogen -Wl,-bcdtors:all foo.o main.o
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// RUN: rm -f default* && %run ./a.out
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// RUN: llvm-profdata show --all-functions default* | FileCheck %s -check-prefix=NONE
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//
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// RUN: %clang_pgogen -Wl,-bcdtors:mbr foo.o main.o
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// RUN: rm -f default* && %run ./a.out
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// RUN: llvm-profdata show --all-functions default* | FileCheck %s -check-prefix=NONE
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// # LTO, with and without function-sections, and all permutations of -bcdtors
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// ## LTO one file, no PGO at compile, PGO at link
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// RUN: %clang -O2 -c foo.c
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// RUN: %clang -O2 -c -flto main.c
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//
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// RUN: %clang_pgogen -flto -fno-function-sections -Wl,-bcdtors:all foo.o main.o
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// RUN: rm -f default* && %run ./a.out
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// RUN: llvm-profdata show --all-functions default* | FileCheck %s -check-prefix=NONE
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//
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// RUN: %clang_pgogen -flto -fno-function-sections -Wl,-bcdtors:mbr foo.o main.o
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// RUN: rm -f default* && %run ./a.out
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// RUN: llvm-profdata show --all-functions default* | FileCheck %s -check-prefix=NONE
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//
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// RUN: %clang_pgogen -flto -ffunction-sections -Wl,-bcdtors:all foo.o main.o
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// RUN: rm -f default* && %run ./a.out
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// RUN: llvm-profdata show --all-functions default* | FileCheck %s -check-prefix=NONE
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//
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// RUN: %clang_pgogen -flto -ffunction-sections -Wl,-bcdtors:mbr foo.o main.o
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// RUN: rm -f default* && %run ./a.out
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// RUN: llvm-profdata show --all-functions default* | FileCheck %s -check-prefix=NONE
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// ## LTO one file, PGO at compile and link
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// RUN: %clang -O2 -c -fno-function-sections foo.c
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// RUN: %clang_pgogen -O2 -c -flto main.c
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// RUN: %clang_pgogen -flto -fno-function-sections -Wl,-bcdtors:all foo.o main.o
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// RUN: rm -f default* && %run ./a.out
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// RUN: llvm-profdata show --all-functions default* | FileCheck %s -check-prefix=MAIN
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// RUN: %clang -O2 -c -flto foo.c
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// RUN: %clang_pgogen -O2 -c -fno-function-sections main.c
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// RUN: %clang_pgogen -flto -fno-function-sections -Wl,-bcdtors:mbr foo.o main.o
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// RUN: rm -f default* && %run ./a.out
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// RUN: llvm-profdata show --all-functions default* | FileCheck %s -check-prefix=MAIN
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// RUN: %clang -O2 -c -flto foo.c
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// RUN: %clang_pgogen -O2 -c -ffunction-sections main.c
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// RUN: %clang_pgogen -flto -ffunction-sections -Wl,-bcdtors:all foo.o main.o
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// RUN: rm -f default* && %run ./a.out
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// RUN: llvm-profdata show --all-functions default* | FileCheck %s -check-prefix=MAIN
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// RUN: %clang -O2 -c -ffunction-sections foo.c
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// RUN: %clang_pgogen -O2 -c -flto main.c
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// RUN: %clang_pgogen -flto -ffunction-sections -Wl,-bcdtors:mbr foo.o main.o
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// RUN: rm -f default* && %run ./a.out
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// RUN: llvm-profdata show --all-functions default* | FileCheck %s -check-prefix=MAIN
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// ## LTO and PGO both files
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// RUN: %clang_pgogen -O2 -c -flto foo.c
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// RUN: %clang_pgogen -O2 -c -flto main.c
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//
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// RUN: %clang_pgogen -flto -fno-function-sections -Wl,-bcdtors:all foo.o main.o
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// RUN: rm -f default* && %run ./a.out
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// RUN: llvm-profdata show --all-functions default* | FileCheck %s -check-prefix=BOTH
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//
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// RUN: %clang_pgogen -flto -fno-function-sections -Wl,-bcdtors:mbr foo.o main.o
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// RUN: rm -f default* && %run ./a.out
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// RUN: llvm-profdata show --all-functions default* | FileCheck %s -check-prefix=BOTH
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//
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// RUN: %clang_pgogen -flto -ffunction-sections -Wl,-bcdtors:all foo.o main.o
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// RUN: rm -f default* && %run ./a.out
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// RUN: llvm-profdata show --all-functions default* | FileCheck %s -check-prefix=BOTH
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//
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// RUN: %clang_pgogen -flto -ffunction-sections -Wl,-bcdtors:mbr foo.o main.o
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// RUN: rm -f default* && %run ./a.out
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// RUN: llvm-profdata show --all-functions default* | FileCheck %s -check-prefix=BOTH
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// BOTH-DAG: foo:
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// BOTH-DAG: main:
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// MAIN-NOT: foo:
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// MAIN: main:
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// MAIN-NOT: foo:
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// NONE: Total functions: 0
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