96c69b7393
Unconditionally add AllocTokenPass to the optimization pipelines, and ensure that it runs last in LTO backend pipelines. The latter ensures that AllocToken instrumentation can be moved later in the LTO pipeline to avoid interference with other optimizations (e.g. PGHO) and enable late heap-allocation optimizations. In preparation of removing AllocTokenPass being added by Clang, add support for AllocTokenPass to read configuration options from LLVM module flags. To optimize given the pass is now runs unconditionally, only retrieve TargetLibraryInfo and OptimizationRemarkEmitter when necessary.
28 lines
813 B
LLVM
28 lines
813 B
LLVM
; --- Full LTO ---
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; RUN: llvm-as %s -o %t.bc
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; RUN: llvm-lto -exported-symbol=main -o %t.out %t.bc
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; RUN: llvm-objdump -d -r %t.out | FileCheck %s
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; --- ThinLTO ---
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; RUN: opt -module-summary -o %t.thin.bc %s
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; RUN: llvm-lto2 run %t.thin.bc -o %t.thin.out \
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; RUN: -r=%t.thin.bc,main,plx \
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; RUN: -r=%t.thin.bc,_Znwm, \
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; RUN: -r=%t.thin.bc,sink,pl
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; RUN: llvm-objdump -d -r %t.thin.out.1 | FileCheck %s
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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declare ptr @_Znwm(i64)
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@sink = global ptr null
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; CHECK-LABEL: <main>:
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; CHECK: callq
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; CHECK-NEXT: R_X86_64_PLT32 __alloc_token__Znwm
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define void @main() sanitize_alloc_token {
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%call = call ptr @_Znwm(i64 8)
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store volatile ptr %call, ptr @sink
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ret void
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}
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