| REQUIRES: linux, lld-available |
| |
| No gc-sections: |
| RUN: %cpp_compiler %S/GcSectionsTest.cpp -o %t |
| RUN: nm %t | grep UnusedFunctionShouldBeRemovedByLinker | count 1 |
| |
| With gc-sections. Currently, we can't remove unused code except with LLD. |
| RUN: %cpp_compiler %S/GcSectionsTest.cpp -o %t -fuse-ld=lld -ffunction-sections -Wl,-gc-sections |
| RUN: nm %t | not grep UnusedFunctionShouldBeRemovedByLinker |
| RUN: %run %t -runs=0 2>&1 | FileCheck %s |
| |
| With gc sections, with trace-pc. Unused code is removed. |
| RUN: %cpp_compiler %S/GcSectionsTest.cpp -o %t -fsanitize-coverage=0 -fsanitize-coverage=trace-pc -ffunction-sections -Wl,-gc-sections |
| RUN: nm %t | not grep UnusedFunctionShouldBeRemovedByLinker |
| |
| RUN: %cpp_compiler %S/GcSectionsTest.cpp -o %t -fsanitize-coverage=0 -fsanitize-coverage=trace-pc-guard,pc-table -fuse-ld=lld -ffunction-sections -Wl,-gc-sections |
| RUN: nm %t | not grep UnusedFunctionShouldBeRemovedByLinker |
| RUN: %run %t -runs=0 2>&1 | FileCheck %s |
| |
| CHECK-NOT: ERROR: The size of coverage PC tables does not match |
