11a6799740
Currently, when the -relink-builtin-bitcodes-postop option is used we link builtin bitcodes twice: once before optimization, and again after optimization. With this change, we omit the pre-opt linking when the option is set, and we rename the option to the following: -Xclang -mlink-builtin-bitcodes-postopt (-Xclang -mno-link-builtin-bitcodes-postopt) The goal of this change is to reduce compile time. We do lose the theoretical benefits of pre-opt linking, but in practice these are small than the overhead of linking twice. However we may be able to address this in a future patch by adjusting the position of the builtin-bitcode linking pass. Compilations not setting the option are unaffected
32 lines
1.1 KiB
C++
32 lines
1.1 KiB
C++
// REQUIRES: amdgpu-registered-target
|
|
|
|
// Test that -mlink-bitcode-postopt correctly enables LinkInModulesPass
|
|
|
|
// RUN: %clang_cc1 -triple amdgcn-- -emit-llvm-bc -o /dev/null \
|
|
// RUN: -mllvm -print-pipeline-passes \
|
|
// RUN: %s 2>&1 | FileCheck --check-prefixes=DEFAULT %s
|
|
|
|
// DEFAULT-NOT: LinkInModulesPass
|
|
|
|
// RUN: %clang_cc1 -triple amdgcn-- -emit-llvm-bc -o /dev/null \
|
|
// RUN: -mllvm -print-pipeline-passes \
|
|
// RUN: -mlink-builtin-bitcode-postopt \
|
|
// RUN: %s 2>&1 | FileCheck --check-prefixes=OPTION-POSITIVE %s
|
|
|
|
// OPTION-POSITIVE: LinkInModulesPass
|
|
|
|
// RUN: %clang_cc1 -triple amdgcn-- -emit-llvm-bc -o /dev/null \
|
|
// RUN: -mllvm -print-pipeline-passes \
|
|
// RUN: -mno-link-builtin-bitcode-postopt \
|
|
// RUN: %s 2>&1 | FileCheck --check-prefixes=OPTION-NEGATIVE %s
|
|
|
|
// OPTION-NEGATIVE-NOT: LinkInModulesPass
|
|
|
|
// RUN: %clang_cc1 -triple amdgcn-- -emit-llvm-bc -o /dev/null \
|
|
// RUN: -mllvm -print-pipeline-passes \
|
|
// RUN: -mlink-builtin-bitcode-postopt \
|
|
// RUN: -mno-link-builtin-bitcode-postopt \
|
|
// RUN: %s 2>&1 | FileCheck --check-prefixes=OPTION-POSITIVE-NEGATIVE %s
|
|
|
|
// OPTION-POSITIVE-NEGATIVE-NOT: LinkInModulesPass
|