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llvm-project/clang/test/CodeGen/instrument-functions.c

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Switch -mcount and -finstrument-functions to emit EnterExitInstrumenter attributes This updates -mcount to use the new attribute names (LLVM r318195), and switches over -finstrument-functions to also use these attributes rather than inserting instrumentation in the frontend. It also adds a new flag, -finstrument-functions-after-inlining, which makes the cygprofile instrumentation get inserted after inlining rather than before. Differential Revision: https://reviews.llvm.org/D39331 llvm-svn: 318199
2017-11-15 05:13:27 +08:00
// RUN: %clang_cc1 -S -debug-info-kind=standalone -emit-llvm -o - %s -finstrument-functions -disable-llvm-passes | FileCheck %s
Add -finstrument-function-entry-bare flag This is an instrumentation flag that's similar to -finstrument-functions, but it only inserts calls on function entry, the calls are inserted post-inlining, and they don't take any arugments. This is intended for users who want to instrument function entry with minimal overhead. (-pg would be another alternative, but forces frame pointer emission and affects link flags, so is probably best left alone to be used for generating gcov data.) Differential revision: https://reviews.llvm.org/D40276 llvm-svn: 318785
2017-11-22 01:30:34 +08:00
// RUN: %clang_cc1 -S -debug-info-kind=standalone -emit-llvm -o - %s -finstrument-function-entry-bare -disable-llvm-passes | FileCheck -check-prefix=BARE %s
implement support for -finstrument-functions, patch by Nelson Elhage! llvm-svn: 106507
2010-06-22 08:03:40 +08:00
int test1(int x) {
Try to fix the instrument-functions tests On e.g. PPC the return value and argument were marked 'signext'. This makes the test expectations a bit more flexible. Follow-up to r318199. llvm-svn: 318214
2017-11-15 07:10:04 +08:00
// CHECK: @test1(i32 {{.*}}%x) #[[ATTR1:[0-9]+]]
implement support for -finstrument-functions, patch by Nelson Elhage! llvm-svn: 106507
2010-06-22 08:03:40 +08:00
// CHECK: ret
Add -finstrument-function-entry-bare flag This is an instrumentation flag that's similar to -finstrument-functions, but it only inserts calls on function entry, the calls are inserted post-inlining, and they don't take any arugments. This is intended for users who want to instrument function entry with minimal overhead. (-pg would be another alternative, but forces frame pointer emission and affects link flags, so is probably best left alone to be used for generating gcov data.) Differential revision: https://reviews.llvm.org/D40276 llvm-svn: 318785
2017-11-22 01:30:34 +08:00
// BARE: @test1(i32 {{.*}}%x) #[[ATTR1:[0-9]+]]
// BARE: ret
implement support for -finstrument-functions, patch by Nelson Elhage! llvm-svn: 106507
2010-06-22 08:03:40 +08:00
return x;
}
int test2(int) __attribute__((no_instrument_function));
int test2(int x) {
Try to fix the instrument-functions tests On e.g. PPC the return value and argument were marked 'signext'. This makes the test expectations a bit more flexible. Follow-up to r318199. llvm-svn: 318214
2017-11-15 07:10:04 +08:00
// CHECK: @test2(i32 {{.*}}%x) #[[ATTR2:[0-9]+]]
implement support for -finstrument-functions, patch by Nelson Elhage! llvm-svn: 106507
2010-06-22 08:03:40 +08:00
// CHECK: ret
Add -finstrument-function-entry-bare flag This is an instrumentation flag that's similar to -finstrument-functions, but it only inserts calls on function entry, the calls are inserted post-inlining, and they don't take any arugments. This is intended for users who want to instrument function entry with minimal overhead. (-pg would be another alternative, but forces frame pointer emission and affects link flags, so is probably best left alone to be used for generating gcov data.) Differential revision: https://reviews.llvm.org/D40276 llvm-svn: 318785
2017-11-22 01:30:34 +08:00
// BARE: @test2(i32 {{.*}}%x) #[[ATTR2:[0-9]+]]
// BARE: ret
implement support for -finstrument-functions, patch by Nelson Elhage! llvm-svn: 106507
2010-06-22 08:03:40 +08:00
return x;
}
Switch -mcount and -finstrument-functions to emit EnterExitInstrumenter attributes This updates -mcount to use the new attribute names (LLVM r318195), and switches over -finstrument-functions to also use these attributes rather than inserting instrumentation in the frontend. It also adds a new flag, -finstrument-functions-after-inlining, which makes the cygprofile instrumentation get inserted after inlining rather than before. Differential Revision: https://reviews.llvm.org/D39331 llvm-svn: 318199
2017-11-15 05:13:27 +08:00
// CHECK: attributes #[[ATTR1]] =
// CHECK-SAME: "instrument-function-entry"="__cyg_profile_func_enter"
// CHECK-SAME: "instrument-function-exit"="__cyg_profile_func_exit"
Add -finstrument-function-entry-bare flag This is an instrumentation flag that's similar to -finstrument-functions, but it only inserts calls on function entry, the calls are inserted post-inlining, and they don't take any arugments. This is intended for users who want to instrument function entry with minimal overhead. (-pg would be another alternative, but forces frame pointer emission and affects link flags, so is probably best left alone to be used for generating gcov data.) Differential revision: https://reviews.llvm.org/D40276 llvm-svn: 318785
2017-11-22 01:30:34 +08:00
// BARE: attributes #[[ATTR1]] =
// BARE-SAME: "instrument-function-entry-inlined"="__cyg_profile_func_enter_bare"
Switch -mcount and -finstrument-functions to emit EnterExitInstrumenter attributes This updates -mcount to use the new attribute names (LLVM r318195), and switches over -finstrument-functions to also use these attributes rather than inserting instrumentation in the frontend. It also adds a new flag, -finstrument-functions-after-inlining, which makes the cygprofile instrumentation get inserted after inlining rather than before. Differential Revision: https://reviews.llvm.org/D39331 llvm-svn: 318199
2017-11-15 05:13:27 +08:00
// CHECK: attributes #[[ATTR2]] =
// CHECK-NOT: "instrument-function-entry"
Add -finstrument-function-entry-bare flag This is an instrumentation flag that's similar to -finstrument-functions, but it only inserts calls on function entry, the calls are inserted post-inlining, and they don't take any arugments. This is intended for users who want to instrument function entry with minimal overhead. (-pg would be another alternative, but forces frame pointer emission and affects link flags, so is probably best left alone to be used for generating gcov data.) Differential revision: https://reviews.llvm.org/D40276 llvm-svn: 318785
2017-11-22 01:30:34 +08:00
// BARE: attributes #[[ATTR2]] =
// BARE-NOT: "instrument-function-entry"