| # Test to check if machine function splitter still produces the right backtraces |
| # with lldb when a function is split into a hot and cold part and the cold part |
| # is executed. The cold part has the same function symbol name but with a |
| # ".cold" suffix and this test checks that the back trace is clear. |
| |
| # UNSUPPORTED: system-darwin, system-windows |
| # REQUIRES: target-x86_64 |
| # REQUIRES: lld |
| |
| # RUN: split-file %s %t.split |
| # |
| # RUN: %clang_host %p/Inputs/split-machine-functions.ll -o %t |
| # RUN: %lldb %t -s %t.split/commands -o exit | FileCheck %s --check-prefix=DEFAULT |
| # |
| # RUN: %clang_host %p/Inputs/split-machine-functions.ll -fsplit-machine-functions -o %t |
| # RUN: %lldb %t -s %t.split/commands -o exit | FileCheck %s --check-prefix=SPLIT |
| # |
| # Test a permutation where foo.cold is very far from foo. The default ordering does not |
| # ensure that there will be a gap between foo and foo.cold. Using a symbol ordering |
| # file guarantees this |
| # RUN: %clang_host %p/Inputs/split-machine-functions.ll -fsplit-machine-functions -o %t -fuse-ld=lld -Wl,--symbol-ordering-file,%t.split/sym_order_1.txt -Wl,--warn-symbol-ordering -Wl,--fatal-warnings |
| # RUN: %lldb %t -s %t.split/commands -o exit | FileCheck %s --check-prefix=SPLIT |
| |
| #--- commands |
| breakpoint set -n bar |
| # DEFAULT: Breakpoint 1: where = {{.*}}`bar |
| # SPLIT: Breakpoint 1: where = {{.*}}`bar |
| |
| process launch |
| # DEFAULT: stop reason = breakpoint 1.1 |
| # SPLIT: stop reason = breakpoint 1.1 |
| |
| thread backtrace |
| # DEFAULT: frame #0: {{.*}}`bar |
| # DEFAULT: frame #1: {{.*}}`foo() + |
| # DEFAULT: frame #2: {{.*}}`main + |
| # SPLIT: frame #0: {{.*}}`bar |
| # SPLIT: frame #1: {{.*}}`foo() (.cold) + |
| # SPLIT: frame #2: {{.*}}`main + |
| |
| #--- sym_order_1.txt |
| _Z3foov |
| main |
| _Z3barv |
| _Z3bazv |
| _Z3foov.cold |