; RUN: rm -rf %t && split-file %s %t ; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mattr=-altivec -mtriple powerpc-ibm-aix-xcoff \ ; RUN: -xcoff-traceback-table=false < %t/no-ref.ll | FileCheck %s --check-prefixes=NOREF ; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mattr=-altivec -mtriple powerpc-ibm-aix-xcoff \ ; RUN: -xcoff-traceback-table=false --filetype=obj < %t/no-ref.ll -o %t/no-ref.o ; RUN: llvm-objdump %t/no-ref.o -r | FileCheck %s --check-prefix=NOREF-OBJ ; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mattr=-altivec -mtriple powerpc-ibm-aix-xcoff \ ; RUN: -xcoff-traceback-table=false < %t/no-vnds.ll | FileCheck %s --check-prefixes=NOVNDS ; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mattr=-altivec -mtriple powerpc-ibm-aix-xcoff \ ; RUN: -xcoff-traceback-table=false --filetype=obj < %t/no-vnds.ll -o %t/no-vnds.o ; RUN: llvm-objdump %t/no-vnds.o -r | FileCheck %s --check-prefix=NOVNDS-OBJ ; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mattr=-altivec -mtriple powerpc-ibm-aix-xcoff \ ; RUN: -xcoff-traceback-table=false < %t/with-vnds.ll | FileCheck %s --check-prefixes=WITHVNDS ; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mattr=-altivec -mtriple powerpc-ibm-aix-xcoff \ ; RUN: -xcoff-traceback-table=false --filetype=obj < %t/with-vnds.ll -o %t/with-vnds.o ; RUN: llvm-objdump %t/with-vnds.o -tr | FileCheck %s --check-prefix=WITHVNDS-OBJ ; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mattr=-altivec -mtriple powerpc-ibm-aix-xcoff \ ; RUN: -xcoff-traceback-table=false < %t/zero-size-cnts-section.ll | FileCheck %s --check-prefixes=ZERO-SIZE-CNTS ; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mattr=-altivec -mtriple powerpc-ibm-aix-xcoff \ ; RUN: -xcoff-traceback-table=false --filetype=obj < %t/zero-size-cnts-section.ll -o %t/zero-size-cnts-section.o ; RUN: llvm-objdump %t/zero-size-cnts-section.o -tr | FileCheck %s --check-prefix=ZERO-SIZE-CNTS-OBJ ; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mattr=-altivec -mtriple powerpc-ibm-aix-xcoff \ ; RUN: -xcoff-traceback-table=false < %t/zero-size-other-section.ll | FileCheck %s --check-prefixes=ZERO-SIZE-OTHER ; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mattr=-altivec -mtriple powerpc64-ibm-aix-xcoff \ ; RUN: -xcoff-traceback-table=false < %t/zero-size-other-section.ll | FileCheck %s --check-prefixes=ZERO-SIZE-OTHER ; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mattr=-altivec -mtriple powerpc-ibm-aix-xcoff \ ; RUN: -xcoff-traceback-table=false --filetype=obj < %t/zero-size-other-section.ll -o %t/zero-size-other-section.o ; RUN: llvm-objdump %t/zero-size-other-section.o -tr | FileCheck %s --check-prefix=ZERO-SIZE-OTHER-OBJ ; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mattr=-altivec -mtriple powerpc64-ibm-aix-xcoff \ ; RUN: -xcoff-traceback-table=false --filetype=obj < %t/zero-size-other-section.ll -o %t/zero-size-other-section.o ; RUN: llvm-objdump %t/zero-size-other-section.o -tr | FileCheck %s --check-prefix=ZERO-SIZE-OTHER-OBJ ;--- no-ref.ll ; The absence of a __llvm_prf_cnts section should stop generating the .refs. ; target datalayout = "E-m:a-p:32:32-i64:64-n32" target triple = "powerpc-ibm-aix7.2.0.0" @__profd_main = private global i64 zeroinitializer, section "__llvm_prf_data", align 8 @__llvm_prf_nm = private constant [6 x i8] c"\04\00main", section "__llvm_prf_names", align 1 @llvm.used = appending global [2 x ptr] [ptr @__profd_main, ptr @__llvm_prf_nm], section "llvm.metadata" define i32 @main() #0 { entry: ret i32 1 } ; NOREF-NOT: .ref __llvm_prf_data ; NOREF-NOT: .ref __llvm_prf_names ; NOREF-NOT: .ref __llvm_prf_vnds ; NOREF-OBJ-NOT: R_REF __llvm_prf_data ; NOREF-OBJ-NOT: R_REF __llvm_prf_names ; NOREF-OBJ-NOT: R_REF __llvm_prf_vnds ;--- no-vnds.ll ; This is the most common case. When -fprofile-generate is used and there exists executable code, we generate the __llvm_prf_cnts, __llvm_prf_data, and __llvm_prf_names sections. ; target datalayout = "E-m:a-p:32:32-i64:64-n32" target triple = "powerpc-ibm-aix7.2.0.0" @__profc_main = private global [1 x i64] zeroinitializer, section "__llvm_prf_cnts", align 8 @__profd_main = private global i64 zeroinitializer, section "__llvm_prf_data", align 8 @__llvm_prf_nm = private constant [6 x i8] c"\04\00main", section "__llvm_prf_names", align 1 @llvm.used = appending global [3 x ptr] [ptr @__profc_main, ptr @__profd_main, ptr @__llvm_prf_nm], section "llvm.metadata" define i32 @main() #0 { entry: ret i32 1 } ; There will be two __llvm_prf_cnts .csects, one to represent the actual csect ; that holds @__profc_main, and one generated to hold the .ref directives. In ; XCOFF, a csect can be defined in pieces, so this is is legal assembly. ; ; NOVNDS: .csect __llvm_prf_cnts[RW],3 ; NOVNDS: .csect __llvm_prf_cnts[RW],3 ; NOVNDS-NEXT: .ref __llvm_prf_data[RW] ; NOVNDS-NEXT: .ref __llvm_prf_names[RO] ; NOVNDS-NOT: .ref __llvm_prf_vnds ; NOVNDS-OBJ: 00000000 R_REF __llvm_prf_data ; NOVNDS-OBJ: 00000000 R_REF __llvm_prf_names ; NOVNDS-OBJ-NOT: R_REF __llvm_prf_vnds ;--- with-vnds.ll ; When value profiling is needed, the PGO instrumentation generates variables in the __llvm_prf_vnds section, so we generate a .ref for them too. ; @__profc_main = private global [1 x i64] zeroinitializer, section "__llvm_prf_cnts", align 8 @__profd_main = private global i64 zeroinitializer, section "__llvm_prf_data", align 8 @__llvm_prf_nm = private constant [6 x i8] c"\04\00main", section "__llvm_prf_names", align 1 @__llvm_prf_vnodes = private global [10 x { i64, i64, ptr }] zeroinitializer, section "__llvm_prf_vnds" @llvm.used = appending global [4 x ptr] [ptr @__profc_main, ptr @__profd_main, ptr @__llvm_prf_nm, ptr @__llvm_prf_vnodes], section "llvm.metadata" define i32 @main() #0 { entry: ret i32 1 } ; WITHVNDS: .csect __llvm_prf_cnts[RW],3 ; WITHVNDS: .csect __llvm_prf_cnts[RW],3 ; WITHVNDS-NEXT: .ref __llvm_prf_data[RW] ; WITHVNDS-NEXT: .ref __llvm_prf_names[RO] ; WITHVNDS-NEXT: .ref __llvm_prf_vnds[RW] ; WITHVNDS-OBJ: SYMBOL TABLE: ; WITHVNDS-OBJ-NEXT: 00000000 df *DEBUG* 00000000 ; WITHVNDS-OBJ-NEXT: 00000000 l .text 00000008 ; WITHVNDS-OBJ-NEXT: 00000000 g F .text (csect: ) 00000000 .main ; WITHVNDS-OBJ-NEXT: 00000008 l .text 00000006 __llvm_prf_names ; WITHVNDS-OBJ-NEXT: 00000010 l O .data 00000008 __llvm_prf_cnts ; WITHVNDS-OBJ-NEXT: 00000018 l O .data 00000008 __llvm_prf_data ; WITHVNDS-OBJ-NEXT: 00000020 l O .data 000000f0 __llvm_prf_vnds ; WITHVNDS-OBJ-NEXT: 00000110 g O .data 0000000c main ; WITHVNDS-OBJ-NEXT: 0000011c l .data 00000000 TOC ; WITHVNDS-OBJ: RELOCATION RECORDS FOR [.data]: ; WITHVNDS-OBJ-NEXT: OFFSET TYPE VALUE ; WITHVNDS-OBJ-NEXT: 00000000 R_REF __llvm_prf_data ; WITHVNDS-OBJ-NEXT: 00000000 R_REF __llvm_prf_names ; WITHVNDS-OBJ-NEXT: 00000000 R_REF __llvm_prf_vnds ; WITHVNDS-OBJ-NEXT: 00000100 R_POS .main ; WITHVNDS-OBJ-NEXT: 00000104 R_POS TOC ;--- zero-size-cnts-section.ll ; If __llvm_prf_cnts is of zero size, do not generate the .ref directive. ; The size of the other sections does not matter. @dummy_cnts = private global [0 x i32] zeroinitializer, section "__llvm_prf_cnts", align 4 @dummy_data = private global [1 x i64] zeroinitializer, section "__llvm_prf_data", align 8 @dummy_name = private constant [0 x i32] zeroinitializer, section "__llvm_prf_names", align 4 @llvm.used = appending global [3 x ptr] [ptr @dummy_cnts, ptr @dummy_data, ptr @dummy_name], section "llvm.metadata" define i32 @main() #0 { entry: ret i32 1 } ; ZERO-SIZE-CNTS-NOT: .ref __llvm_prf_data[RW] ; ZERO-SIZE-CNTS-NOT: .ref __llvm_prf_names[RO] ; ZERO-SIZE-CNTS-NOT: .ref __llvm_prf_vnds ; ZERO-SIZE-CNTS-OBJ-NOT: R_REF __llvm_prf_data ; ZERO-SIZE-CNTS-OBJ-NOT: R_REF __llvm_prf_names ; ZERO-SIZE-CNTS-OBJ-NOT: R_REF __llvm_prf_vnds ;--- zero-size-other-section.ll ; If __llvm_prf_cnts is of non-zero size, generate the .ref directive even if other sections ; are zero-sized; @__profc_main = private global [1 x i64] zeroinitializer, section "__llvm_prf_cnts", align 8 @__profd_main = private global [0 x i64] zeroinitializer, section "__llvm_prf_data", align 8 @__llvm_prf_nm = private constant [0 x i8] zeroinitializer, section "__llvm_prf_names", align 1 @__llvm_prf_vnodes = private global [0 x { i64, i64, ptr }] zeroinitializer, section "__llvm_prf_vnds" @llvm.used = appending global [4 x ptr] [ptr @__profc_main, ptr @__profd_main, ptr @__llvm_prf_nm, ptr @__llvm_prf_vnodes], section "llvm.metadata" define i32 @main() #0 { entry: ret i32 1 } ; ZERO-SIZE-OTHER: .csect __llvm_prf_cnts[RW],3 ; ZERO-SIZE-OTHER: .csect __llvm_prf_cnts[RW],3 ; ZERO-SIZE-OTHER-NEXT: .ref __llvm_prf_data[RW] ; ZERO-SIZE-OTHER-NEXT: .ref __llvm_prf_names[RO] ; ZERO-SIZE-OTHER-NEXT: .ref __llvm_prf_vnds[RW] ; ZERO-SIZE-OTHER-OBJ: R_REF __llvm_prf_data ; ZERO-SIZE-OTHER-OBJ-NEXT: R_REF __llvm_prf_names ; ZERO-SIZE-OTHER-OBJ-NEXT: R_REF __llvm_prf_vnds