6984f942bc
This requires an x86 build, otherwise the test will fail with: ``` Error running ThinLTO backend: No available targets are compatible with triple "x86_64-unknown-linux-gnu" ```
70 lines
3.0 KiB
C++
70 lines
3.0 KiB
C++
// Test end-to-end ThinLTO optimization pipeline with PGHO, that it does not
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// interfere with other allocation instrumentation features.
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//
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// REQUIRES: x86-registered-target
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//
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// RUN: split-file %s %t
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// RUN: llvm-profdata merge %t/memprof.yaml -o %t/use.memprofdata
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//
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// RUN: %clangxx --target=x86_64-linux-gnu -O2 -flto=thin -g -fmemory-profile-use=%t/use.memprofdata %t/src.cpp -c -o %t.o
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// RUN: llvm-lto2 run %t.o -thinlto-distributed-indexes -supports-hot-cold-new -r=%t.o,main,plx -r=%t.o,_Z3foov,plx -r=%t.o,_Znam, -o %t.out
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// RUN: %clang_cc1 -triple x86_64-linux-gnu -O1 -x ir %t.o -fthinlto-index=%t.o.thinlto.bc -mllvm -optimize-hot-cold-new -emit-llvm -o - 2>&1 | FileCheck %s --check-prefixes=CHECK,DEFAULT
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// RUN: %clang_cc1 -triple x86_64-linux-gnu -O2 -x ir %t.o -fthinlto-index=%t.o.thinlto.bc -mllvm -optimize-hot-cold-new -emit-llvm -o - 2>&1 | FileCheck %s --check-prefixes=CHECK,DEFAULT
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//
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// RUN: %clangxx --target=x86_64-linux-gnu -O2 -flto=thin -g -fsanitize=alloc-token -falloc-token-max=32 -fmemory-profile-use=%t/use.memprofdata %t/src.cpp -c -o %t.o
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// RUN: llvm-lto2 run %t.o -thinlto-distributed-indexes -supports-hot-cold-new -r=%t.o,main,plx -r=%t.o,_Z3foov,plx -r=%t.o,_Znam, -o %t.out
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// RUN: %clang_cc1 -triple x86_64-linux-gnu -O1 -x ir %t.o -fsanitize=alloc-token -fthinlto-index=%t.o.thinlto.bc -mllvm -optimize-hot-cold-new -emit-llvm -o - 2>&1 | FileCheck %s --check-prefixes=CHECK,ALLOCTOKEN
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// RUN: %clang_cc1 -triple x86_64-linux-gnu -O2 -x ir %t.o -fsanitize=alloc-token -fthinlto-index=%t.o.thinlto.bc -mllvm -optimize-hot-cold-new -emit-llvm -o - 2>&1 | FileCheck %s --check-prefixes=CHECK,ALLOCTOKEN
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//--- memprof.yaml
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---
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HeapProfileRecords:
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- GUID: 0x7f8d88fcc70a347b
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AllocSites:
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- Callstack:
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- { Function: 0x7f8d88fcc70a347b, LineOffset: 1, Column: 10, IsInlineFrame: false }
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- { Function: 0xdb956436e78dd5fa, LineOffset: 1, Column: 13, IsInlineFrame: false }
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MemInfoBlock:
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AllocCount: 1
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TotalAccessCount: 0
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MinAccessCount: 0
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MaxAccessCount: 0
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TotalSize: 10
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MinSize: 10
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MaxSize: 10
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AllocTimestamp: 100
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DeallocTimestamp: 100
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TotalLifetime: 100000
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MinLifetime: 100000
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MaxLifetime: 100000
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AllocCpuId: 0
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DeallocCpuId: 0
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NumMigratedCpu: 0
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NumLifetimeOverlaps: 0
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NumSameAllocCpu: 0
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NumSameDeallocCpu: 0
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DataTypeId: 0
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TotalAccessDensity: 0
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MinAccessDensity: 0
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MaxAccessDensity: 0
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TotalLifetimeAccessDensity: 0
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MinLifetimeAccessDensity: 0
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MaxLifetimeAccessDensity: 0
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AccessHistogramSize: 0
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AccessHistogram: 0
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...
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//--- src.cpp
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// CHECK-LABEL: define{{.*}} ptr @_Z3foov()
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// DEFAULT: call {{.*}} ptr @_Znam12__hot_cold_t(i64 10, i8 -128)
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// ALLOCTOKEN: call {{.*}} ptr @__alloc_token__Znam12__hot_cold_t(i64 10, i8 -128, i64 12){{.*}} !alloc_token
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char *foo() {
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return new char[10];
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}
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int main() {
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char *a = foo();
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delete[] a;
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return 0;
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}
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