1; Tests if the __llvm_gcov_ctr section contains a .ref pseudo-op 2; referring to the __llvm_covinit section. 3; RUN: llc < %s | FileCheck --check-prefixes=CHECK,CHECK-RW %s 4; RUN: llc -mxcoff-roptr < %s | FileCheck --check-prefixes=CHECK,CHECK-RO %s 5 6target datalayout = "E-m:a-p:32:32-Fi32-i64:64-n32" 7target triple = "powerpc-ibm-aix" 8 9; CHECK-RW: .csect __llvm_covinit[RW],3 10; CHECK-RO: .csect __llvm_covinit[RO],3 11; CHECK-NEXT: .align 3 # @__llvm_covinit_functions 12; CHECK-NEXT: L..__llvm_covinit_functions: 13; CHECK-NEXT: .vbyte 4, __llvm_gcov_writeout[DS] 14; CHECK-NEXT: .vbyte 4, __llvm_gcov_reset[DS] 15; CHECK: .csect __llvm_gcov_ctr_section[RW],3 16; CHECK-NEXT: .lglobl __llvm_gcov_ctr # @_MergedGlobals 17; CHECK-NEXT: .lglobl __llvm_gcov_ctr.1 18; CHECK-NEXT: .align 3 19; CHECK-NEXT: L.._MergedGlobals: 20; CHECK-NEXT: __llvm_gcov_ctr: 21; CHECK-NEXT: .space 8 22; CHECK-NEXT: __llvm_gcov_ctr.1: 23; CHECK-NEXT: .space 8 24; CHECK: .csect __llvm_gcov_ctr_section[RW],3 25; CHECK-RW-NEXT: .ref __llvm_covinit[RW] 26; CHECK-RO-NEXT: .ref __llvm_covinit[RO] 27 28%emit_function_args_ty = type { i32, i32, i32 } 29%emit_arcs_args_ty = type { i32, ptr } 30%file_info = type { %start_file_args_ty, i32, ptr, ptr } 31%start_file_args_ty = type { ptr, i32, i32 } 32 33@__llvm_gcov_ctr = internal global [1 x i64] zeroinitializer, section "__llvm_gcov_ctr_section" 34@__llvm_gcov_ctr.1 = internal global [1 x i64] zeroinitializer, section "__llvm_gcov_ctr_section" 35@0 = private unnamed_addr constant [10 x i8] c"test.gcda\00", align 1 36@__llvm_internal_gcov_emit_function_args.0 = internal unnamed_addr constant [2 x %emit_function_args_ty] [%emit_function_args_ty { i32 0, i32 1961870044, i32 -801444649 }, %emit_function_args_ty { i32 1, i32 1795396728, i32 -801444649 }] 37@__llvm_internal_gcov_emit_arcs_args.0 = internal unnamed_addr constant [2 x %emit_arcs_args_ty] [%emit_arcs_args_ty { i32 1, ptr @__llvm_gcov_ctr }, %emit_arcs_args_ty { i32 1, ptr @__llvm_gcov_ctr.1 }] 38@__llvm_internal_gcov_emit_file_info = internal unnamed_addr constant [1 x %file_info] [%file_info { %start_file_args_ty { ptr @0, i32 875575338, i32 -801444649 }, i32 2, ptr @__llvm_internal_gcov_emit_function_args.0, ptr @__llvm_internal_gcov_emit_arcs_args.0 }] 39@__llvm_covinit_functions = private constant { ptr, ptr } { ptr @__llvm_gcov_writeout, ptr @__llvm_gcov_reset }, section "__llvm_covinit", align 8 40 41define i32 @bar() { 42entry: 43 %gcov_ctr = load i64, ptr @__llvm_gcov_ctr, align 8 44 %0 = add i64 %gcov_ctr, 1 45 store i64 %0, ptr @__llvm_gcov_ctr, align 8 46 ret i32 1 47} 48 49define i32 @main() { 50entry: 51 %gcov_ctr = load i64, ptr @__llvm_gcov_ctr.1, align 8 52 %0 = add i64 %gcov_ctr, 1 53 store i64 %0, ptr @__llvm_gcov_ctr.1, align 8 54 %retval = alloca i32, align 4 55 store i32 0, ptr %retval, align 4 56 %call = call i32 @bar() 57 %sub = sub nsw i32 %call, 1 58 ret i32 %sub 59} 60 61define internal void @__llvm_gcov_writeout() unnamed_addr { 62entry: 63 br label %file.loop.header 64 65file.loop.header: ; preds = %file.loop.latch, %entry 66 %file_idx = phi i32 [ 0, %entry ], [ %next_file_idx, %file.loop.latch ] 67 %0 = getelementptr inbounds [1 x %file_info], ptr @__llvm_internal_gcov_emit_file_info, i32 0, i32 %file_idx 68 %start_file_args = getelementptr inbounds nuw %file_info, ptr %0, i32 0, i32 0 69 %1 = getelementptr inbounds nuw %start_file_args_ty, ptr %start_file_args, i32 0, i32 0 70 %filename = load ptr, ptr %1, align 4 71 %2 = getelementptr inbounds nuw %start_file_args_ty, ptr %start_file_args, i32 0, i32 1 72 %version = load i32, ptr %2, align 4 73 %3 = getelementptr inbounds nuw %start_file_args_ty, ptr %start_file_args, i32 0, i32 2 74 %stamp = load i32, ptr %3, align 4 75 call void @llvm_gcda_start_file(ptr %filename, i32 %version, i32 %stamp) 76 %4 = getelementptr inbounds nuw %file_info, ptr %0, i32 0, i32 1 77 %num_ctrs = load i32, ptr %4, align 4 78 %5 = getelementptr inbounds nuw %file_info, ptr %0, i32 0, i32 2 79 %emit_function_args = load ptr, ptr %5, align 4 80 %6 = getelementptr inbounds nuw %file_info, ptr %0, i32 0, i32 3 81 %emit_arcs_args = load ptr, ptr %6, align 4 82 %7 = icmp slt i32 0, %num_ctrs 83 br i1 %7, label %counter.loop.header, label %file.loop.latch 84 85counter.loop.header: ; preds = %counter.loop.header, %file.loop.header 86 %ctr_idx = phi i32 [ 0, %file.loop.header ], [ %15, %counter.loop.header ] 87 %8 = getelementptr inbounds %emit_function_args_ty, ptr %emit_function_args, i32 %ctr_idx 88 %9 = getelementptr inbounds nuw %emit_function_args_ty, ptr %8, i32 0, i32 0 89 %ident = load i32, ptr %9, align 4 90 %10 = getelementptr inbounds nuw %emit_function_args_ty, ptr %8, i32 0, i32 1 91 %func_checkssum = load i32, ptr %10, align 4 92 %11 = getelementptr inbounds nuw %emit_function_args_ty, ptr %8, i32 0, i32 2 93 %cfg_checksum = load i32, ptr %11, align 4 94 call void @llvm_gcda_emit_function(i32 %ident, i32 %func_checkssum, i32 %cfg_checksum) 95 %12 = getelementptr inbounds %emit_arcs_args_ty, ptr %emit_arcs_args, i32 %ctr_idx 96 %13 = getelementptr inbounds nuw %emit_arcs_args_ty, ptr %12, i32 0, i32 0 97 %num_counters = load i32, ptr %13, align 4 98 %14 = getelementptr inbounds nuw %emit_arcs_args_ty, ptr %12, i32 0, i32 1 99 %counters = load ptr, ptr %14, align 4 100 call void @llvm_gcda_emit_arcs(i32 %num_counters, ptr %counters) 101 %15 = add i32 %ctr_idx, 1 102 %16 = icmp slt i32 %15, %num_ctrs 103 br i1 %16, label %counter.loop.header, label %file.loop.latch 104 105file.loop.latch: ; preds = %counter.loop.header, %file.loop.header 106 call void @llvm_gcda_summary_info() 107 call void @llvm_gcda_end_file() 108 %next_file_idx = add i32 %file_idx, 1 109 %17 = icmp slt i32 %next_file_idx, 1 110 br i1 %17, label %file.loop.header, label %exit 111 112exit: ; preds = %file.loop.latch 113 ret void 114} 115 116declare void @llvm_gcda_start_file(ptr, i32, i32) 117 118declare void @llvm_gcda_emit_function(i32, i32, i32) 119 120declare void @llvm_gcda_emit_arcs(i32, ptr) 121 122declare void @llvm_gcda_summary_info() 123 124declare void @llvm_gcda_end_file() 125 126define internal void @__llvm_gcov_reset() unnamed_addr { 127entry: 128 call void @llvm.memset.p0.i64(ptr @__llvm_gcov_ctr, i8 0, i64 8, i1 false) 129 call void @llvm.memset.p0.i64(ptr @__llvm_gcov_ctr.1, i8 0, i64 8, i1 false) 130 ret void 131} 132 133declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) 134 135 136