derek.holloway
7502bf64a4
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176 lines
6.3 KiB
ArmAsm
176 lines
6.3 KiB
ArmAsm
## Ensures that a call continuation fallthrough count is set when using
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## pre-aggregated perf data.
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# RUN: %clang %cflags -fpic -shared -xc /dev/null -o %t.so
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## Link against a DSO to ensure PLT entries.
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# RUN: %clangxx %cxxflags %s %t.so -o %t -Wl,-q -nostdlib
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# Trace to a call continuation, not a landing pad/entry point
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# RUN: link_fdata %s %t %t.pa-base PREAGG-BASE
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# Trace from a return to a landing pad/entry point call continuation
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# RUN: link_fdata %s %t %t.pa-ret PREAGG-RET
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# Trace from an external location to a landing pad/entry point call continuation
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# RUN: link_fdata %s %t %t.pa-ext PREAGG-EXT
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# Return trace to a landing pad/entry point call continuation
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# RUN: link_fdata %s %t %t.pa-pret PREAGG-PRET
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# External return to a landing pad/entry point call continuation
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# RUN: link_fdata %s %t %t.pa-eret PREAGG-ERET
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# RUN-DISABLED: link_fdata %s %t %t.pa-plt PREAGG-PLT
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## Fall-through imputing test cases
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# RUN: link_fdata %s %t %t.pa-imp PREAGG-IMP
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# RUN: llvm-strip --strip-unneeded %t -o %t.strip
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# RUN: llvm-objcopy --remove-section=.eh_frame %t.strip %t.noeh
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## Check pre-aggregated traces attach call continuation fallthrough count
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## in the basic case (not an entry point, not a landing pad).
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# RUN: llvm-bolt %t.noeh --pa -p %t.pa-base -o %t.out \
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# RUN: --print-cfg --print-only=main | FileCheck %s --check-prefix=CHECK-BASE
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## Check pre-aggregated traces from a return attach call continuation
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## fallthrough count to secondary entry point (unstripped)
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# RUN: llvm-bolt %t --pa -p %t.pa-ret -o %t.out \
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# RUN: --print-cfg --print-only=main | FileCheck %s --check-prefix=CHECK-ATTACH
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## Check pre-aggregated traces from a return attach call continuation
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## fallthrough count to landing pad (stripped, landing pad)
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# RUN: llvm-bolt %t.strip --pa -p %t.pa-ret -o %t.out \
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# RUN: --print-cfg --print-only=main | FileCheck %s --check-prefix=CHECK-ATTACH
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## Check pre-aggregated traces from external location don't attach call
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## continuation fallthrough count to secondary entry point (unstripped)
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# RUN: llvm-bolt %t --pa -p %t.pa-ext -o %t.out \
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# RUN: --print-cfg --print-only=main | FileCheck %s --check-prefix=CHECK-SKIP
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## Check pre-aggregated traces from external location don't attach call
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## continuation fallthrough count to landing pad (stripped, landing pad)
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# RUN: llvm-bolt %t.strip --pa -p %t.pa-ext -o %t.out \
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# RUN: --print-cfg --print-only=main | FileCheck %s --check-prefix=CHECK-SKIP
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## Check pre-aggregated return traces from external location attach call
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## continuation fallthrough count to secondary entry point (unstripped)
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# RUN: llvm-bolt %t --pa -p %t.pa-pret -o %t.out \
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# RUN: --print-cfg --print-only=main | FileCheck %s --check-prefix=CHECK-ATTACH
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## Check pre-aggregated return traces from external location attach call
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## continuation fallthrough count to landing pad (stripped, landing pad)
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# RUN: llvm-bolt %t.strip --pa -p %t.pa-pret -o %t.out \
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# RUN: --print-cfg --print-only=main | FileCheck %s --check-prefix=CHECK-ATTACH
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## Same for external return type
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# RUN: llvm-bolt %t --pa -p %t.pa-eret -o %t.out \
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# RUN: --print-cfg --print-only=main | FileCheck %s --check-prefix=CHECK-ATTACH
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# RUN: llvm-bolt %t.strip --pa -p %t.pa-eret -o %t.out \
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# RUN: --print-cfg --print-only=main | FileCheck %s --check-prefix=CHECK-ATTACH
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## Check pre-aggregated traces don't report zero-sized PLT fall-through as
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## invalid trace
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# RUN-DISABLED: llvm-bolt %t.strip --pa -p %t.pa-plt -o %t.out | FileCheck %s \
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# RUN-DISABLED: --check-prefix=CHECK-PLT
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# CHECK-PLT: traces mismatching disassembled function contents: 0
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## Check --impute-trace-fall-throughs accepting duplicate branch-only traces
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# RUN: perf2bolt %t --pa -p %t.pa-imp -o %t.pa-imp.fdata --impute-trace-fall-through
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# RUN: FileCheck %s --check-prefix=CHECK-IMP --input-file %t.pa-imp.fdata
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# CHECK-IMP: 0 [unknown] 0 1 main {{.*}} 0 3
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.globl foo
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.type foo, %function
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foo:
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pushq %rbp
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movq %rsp, %rbp
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popq %rbp
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Lfoo_ret:
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retq
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.size foo, .-foo
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.globl main
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.type main, %function
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main:
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.Lfunc_begin0:
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.cfi_startproc
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.cfi_personality 155, DW.ref.__gxx_personality_v0
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.cfi_lsda 27, .Lexception0
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pushq %rbp
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movq %rsp, %rbp
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subq $0x20, %rsp
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movl $0x0, -0x4(%rbp)
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movl %edi, -0x8(%rbp)
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movq %rsi, -0x10(%rbp)
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Ltmp0_br:
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callq puts@PLT
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## Check PLT traces are accepted
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# PREAGG-PLT: T #Ltmp0_br# #puts@plt# #puts@plt# 3
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## Target is an external-origin call continuation
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# PREAGG-BASE: T X:0 #Ltmp1# #Ltmp4_br# 2
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# CHECK-BASE: callq puts@PLT
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# CHECK-BASE-NEXT: count: 2
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Ltmp1:
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movq -0x10(%rbp), %rax
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movq 0x8(%rax), %rdi
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movl %eax, -0x14(%rbp)
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Ltmp4:
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cmpl $0x0, -0x14(%rbp)
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# PREAGG-IMP: B X:0 #Ltmp4_br# 1 0
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# PREAGG-IMP: B X:0 #Ltmp4_br# 2 0
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Ltmp4_br:
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je Ltmp0
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movl $0xa, -0x18(%rbp)
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callq foo
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## Target is a binary-local call continuation
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# PREAGG-RET: T #Lfoo_ret# #Ltmp3# #Ltmp3_br# 1
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## Target is a secondary entry point (unstripped) or a landing pad (stripped)
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# PREAGG-EXT: T X:0 #Ltmp3# #Ltmp3_br# 1
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## Pre-aggregated return trace
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# PREAGG-PRET: R X:0 #Ltmp3# #Ltmp3_br# 1
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## External return
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# PREAGG-ERET: r #Ltmp3# #Ltmp3_br# 1
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# CHECK-ATTACH: callq foo
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# CHECK-ATTACH-NEXT: count: 1
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# CHECK-SKIP: callq foo
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# CHECK-SKIP-NEXT: count: 0
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Ltmp3:
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cmpl $0x0, -0x18(%rbp)
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Ltmp3_br:
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jmp Ltmp2
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Ltmp2:
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movl -0x18(%rbp), %eax
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addl $-0x1, %eax
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movl %eax, -0x18(%rbp)
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jmp Ltmp3
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jmp Ltmp4
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jmp Ltmp1
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Ltmp0:
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xorl %eax, %eax
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addq $0x20, %rsp
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popq %rbp
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retq
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.Lfunc_end0:
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.cfi_endproc
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.size main, .-main
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.section .gcc_except_table,"a",@progbits
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.p2align 2, 0x0
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GCC_except_table0:
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.Lexception0:
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.byte 255 # @LPStart Encoding = omit
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.byte 255 # @TType Encoding = omit
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.byte 1 # Call site Encoding = uleb128
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.uleb128 .Lcst_end0-.Lcst_begin0
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.Lcst_begin0:
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.uleb128 .Lfunc_begin0-.Lfunc_begin0 # >> Call Site 1 <<
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.uleb128 .Lfunc_end0-.Lfunc_begin0 # Call between .Lfunc_begin0 and .Lfunc_end0
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.uleb128 Ltmp3-.Lfunc_begin0 # jumps to Ltmp3
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.byte 0 # has no landing pad
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.byte 0 # On action: cleanup
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.Lcst_end0:
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.p2align 2, 0x0
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.hidden DW.ref.__gxx_personality_v0
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.weak DW.ref.__gxx_personality_v0
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.section .data.DW.ref.__gxx_personality_v0,"awG",@progbits,DW.ref.__gxx_personality_v0,comdat
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.p2align 3, 0x0
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.type DW.ref.__gxx_personality_v0,@object
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