derek.holloway
7502bf64a4
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64 lines
1.8 KiB
Plaintext
64 lines
1.8 KiB
Plaintext
## Check that BOLT handles correctly folding functions with --icf=safe that are only referenced from a .rela.data section.
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# REQUIRES: system-linux, asserts
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# RUN: llvm-mc -filetype=obj -triple x86_64-unknown-linux %s -o %t1.o
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# RUN: %clang %cflags %t1.o -o %t.exe -Wl,-q -no-pie
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# RUN: llvm-bolt --no-threads %t.exe --icf -debug-only=bolt-icf -o %t.bolt 2>&1 | FileCheck --check-prefix=ICFCHECK %s
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# RUN: llvm-bolt --no-threads %t.exe --icf=safe -debug-only=bolt-icf -o %t.bolt 2>&1 | FileCheck --check-prefix=SAFEICFCHECK %s
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# ICFCHECK: ICF iteration 1
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# ICFCHECK-NEXT: folding barAddFunc into fooAddFunc
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# SAFEICFCHECK: skipping function with reference taken fooAddFunc
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# SAFEICFCHECK-NEXT: skipping function with reference taken barAddFunc
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# SAFEICFCHECK-NEXT: ICF iteration 1
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## clang++ main.cpp
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## Other functions removed for brevity.
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## int main(int argc, char **argv) {
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## const static int (*const funcGlobalBarAdd)(int, int) = barAddHdlper;
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## const int (* const funcGlobalBarMul)(int, int) = fooGlobalFuncHelper;
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## helper2(funcGlobalBarAdd, funcGlobalFooAdd, 3, 4)
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## }
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## Extra assembly removed.
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.globl fooAddFunc
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.type fooAddFunc,@function
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fooAddFunc:
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addl -8(%rbp), %eax
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retq
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.size fooAddFunc, .-fooAddFunc
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.globl barAddFunc
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.type barAddFunc,@function
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barAddFunc:
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addl -8(%rbp), %eax
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retq
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.size barAddFunc, .-barAddFunc
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.globl helperFunc
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.type helperFunc,@function
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helperFunc:
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retq
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.size helperFunc, .-helperFunc
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.globl main
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.type main,@function
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main:
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movq localStaticVarBarAdd, %rdi
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movq localStaticVarFooAdd, %rsi
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callq helperFunc
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retq
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.size main, .-main
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.type localStaticVarBarAdd,@object # @localStaticVarBarAdd
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.data
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localStaticVarBarAdd:
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.quad barAddFunc
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.size localStaticVarBarAdd, 8
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.type localStaticVarFooAdd,@object # @localStaticVarFooAdd
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localStaticVarFooAdd:
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.quad fooAddFunc
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.size localStaticVarFooAdd, 8
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