Author: Marco Elver Date: 2025-11-25T17:21:57+01:00 New Revision: e04cca8561c65b9820f2c284eea164ab9fb7cdce
URL: https://github.com/llvm/llvm-project/commit/e04cca8561c65b9820f2c284eea164ab9fb7cdce DIFF: https://github.com/llvm/llvm-project/commit/e04cca8561c65b9820f2c284eea164ab9fb7cdce.diff LOG: [Clang][MemProf] Add end-to-end test for PGHO rewriting (#169243) Add an end-to-end (non-LTO) test verifying that the optimization pipeline is set up correctly for Profile Guided Heap Optimization (PGHO) transforms. Ensure that both PGHO and AllocToken can stack, and the AllocToken pass does not interfere with PGHO and vice versa. Added: clang/test/CodeGen/memprof-pgho.cpp Modified: Removed: ################################################################################ diff --git a/clang/test/CodeGen/memprof-pgho.cpp b/clang/test/CodeGen/memprof-pgho.cpp new file mode 100644 index 0000000000000..73bec2b303f13 --- /dev/null +++ b/clang/test/CodeGen/memprof-pgho.cpp @@ -0,0 +1,61 @@ +// Test end-to-end optimization pipeline with PGHO, that it does not interfere +// with other allocation instrumentation features. +// +// RUN: split-file %s %t +// RUN: llvm-profdata merge %t/memprof.yaml -o %t/use.profdata +// RUN: %clang_cc1 -O2 -debug-info-kind=limited -fmemory-profile-use=%t/use.profdata -mllvm -optimize-hot-cold-new \ +// RUN: %t/src.cpp -triple x86_64-linux-gnu -emit-llvm -o - | FileCheck %s --check-prefixes=CHECK,DEFAULT +// RUN: %clang_cc1 -O2 -fsanitize=alloc-token -debug-info-kind=limited -fmemory-profile-use=%t/use.profdata -mllvm -optimize-hot-cold-new \ +// RUN: %t/src.cpp -triple x86_64-linux-gnu -emit-llvm -o - | FileCheck %s --check-prefixes=CHECK,ALLOCTOKEN + +//--- memprof.yaml +--- +HeapProfileRecords: + - GUID: 0x7f8d88fcc70a347b + AllocSites: + - Callstack: + - { Function: 0x7f8d88fcc70a347b, LineOffset: 1, Column: 10, IsInlineFrame: false } + - { Function: 0xdb956436e78dd5fa, LineOffset: 1, Column: 13, IsInlineFrame: false } + MemInfoBlock: + AllocCount: 1 + TotalAccessCount: 0 + MinAccessCount: 0 + MaxAccessCount: 0 + TotalSize: 10 + MinSize: 10 + MaxSize: 10 + AllocTimestamp: 100 + DeallocTimestamp: 100 + TotalLifetime: 100000 + MinLifetime: 100000 + MaxLifetime: 100000 + AllocCpuId: 0 + DeallocCpuId: 0 + NumMigratedCpu: 0 + NumLifetimeOverlaps: 0 + NumSameAllocCpu: 0 + NumSameDeallocCpu: 0 + DataTypeId: 0 + TotalAccessDensity: 0 + MinAccessDensity: 0 + MaxAccessDensity: 0 + TotalLifetimeAccessDensity: 0 + MinLifetimeAccessDensity: 0 + MaxLifetimeAccessDensity: 0 + AccessHistogramSize: 0 + AccessHistogram: 0 +... + +//--- src.cpp +// CHECK-LABEL: define{{.*}} ptr @_Z3foov() +// DEFAULT: call {{.*}} ptr @_Znam12__hot_cold_t(i64 10, i8 -128) +// ALLOCTOKEN: call {{.*}} ptr @__alloc_token__Znam12__hot_cold_t(i64 10, i8 -128, i64 1538840549748785101){{.*}} !alloc_token +char *foo() { + return new char[10]; +} + +int main() { + char *a = foo(); + delete[] a; + return 0; +} _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
