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1; Tests if the __llvm_gcov_ctr section contains a .ref pseudo-op2; referring to the __llvm_covinit section.3; RUN: llc < %s | FileCheck --check-prefixes=CHECK,CHECK-RW %s4; RUN: llc -mxcoff-roptr < %s | FileCheck --check-prefixes=CHECK,CHECK-RO %s5 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],310; CHECK-RO: .csect __llvm_covinit[RO],311; CHECK-NEXT: .align 3 # @__llvm_covinit_functions12; 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],316; CHECK-NEXT: .lglobl __llvm_gcov_ctr # @_MergedGlobals17; CHECK-NEXT: .lglobl __llvm_gcov_ctr.118; CHECK-NEXT: .align 319; CHECK-NEXT: L.._MergedGlobals:20; CHECK-NEXT: __llvm_gcov_ctr:21; CHECK-NEXT: .space 822; CHECK-NEXT: __llvm_gcov_ctr.1:23; CHECK-NEXT: .space 824; CHECK: .csect __llvm_gcov_ctr_section[RW],325; 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 136@__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 840 41define i32 @bar() {42entry:43 %gcov_ctr = load i64, ptr @__llvm_gcov_ctr, align 844 %0 = add i64 %gcov_ctr, 145 store i64 %0, ptr @__llvm_gcov_ctr, align 846 ret i32 147}48 49define i32 @main() {50entry:51 %gcov_ctr = load i64, ptr @__llvm_gcov_ctr.1, align 852 %0 = add i64 %gcov_ctr, 153 store i64 %0, ptr @__llvm_gcov_ctr.1, align 854 %retval = alloca i32, align 455 store i32 0, ptr %retval, align 456 %call = call i32 @bar()57 %sub = sub nsw i32 %call, 158 ret i32 %sub59}60 61define internal void @__llvm_gcov_writeout() unnamed_addr {62entry:63 br label %file.loop.header64 65file.loop.header: ; preds = %file.loop.latch, %entry66 %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_idx68 %start_file_args = getelementptr inbounds nuw %file_info, ptr %0, i32 0, i32 069 %1 = getelementptr inbounds nuw %start_file_args_ty, ptr %start_file_args, i32 0, i32 070 %filename = load ptr, ptr %1, align 471 %2 = getelementptr inbounds nuw %start_file_args_ty, ptr %start_file_args, i32 0, i32 172 %version = load i32, ptr %2, align 473 %3 = getelementptr inbounds nuw %start_file_args_ty, ptr %start_file_args, i32 0, i32 274 %stamp = load i32, ptr %3, align 475 call void @llvm_gcda_start_file(ptr %filename, i32 %version, i32 %stamp)76 %4 = getelementptr inbounds nuw %file_info, ptr %0, i32 0, i32 177 %num_ctrs = load i32, ptr %4, align 478 %5 = getelementptr inbounds nuw %file_info, ptr %0, i32 0, i32 279 %emit_function_args = load ptr, ptr %5, align 480 %6 = getelementptr inbounds nuw %file_info, ptr %0, i32 0, i32 381 %emit_arcs_args = load ptr, ptr %6, align 482 %7 = icmp slt i32 0, %num_ctrs83 br i1 %7, label %counter.loop.header, label %file.loop.latch84 85counter.loop.header: ; preds = %counter.loop.header, %file.loop.header86 %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_idx88 %9 = getelementptr inbounds nuw %emit_function_args_ty, ptr %8, i32 0, i32 089 %ident = load i32, ptr %9, align 490 %10 = getelementptr inbounds nuw %emit_function_args_ty, ptr %8, i32 0, i32 191 %func_checkssum = load i32, ptr %10, align 492 %11 = getelementptr inbounds nuw %emit_function_args_ty, ptr %8, i32 0, i32 293 %cfg_checksum = load i32, ptr %11, align 494 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_idx96 %13 = getelementptr inbounds nuw %emit_arcs_args_ty, ptr %12, i32 0, i32 097 %num_counters = load i32, ptr %13, align 498 %14 = getelementptr inbounds nuw %emit_arcs_args_ty, ptr %12, i32 0, i32 199 %counters = load ptr, ptr %14, align 4100 call void @llvm_gcda_emit_arcs(i32 %num_counters, ptr %counters)101 %15 = add i32 %ctr_idx, 1102 %16 = icmp slt i32 %15, %num_ctrs103 br i1 %16, label %counter.loop.header, label %file.loop.latch104 105file.loop.latch: ; preds = %counter.loop.header, %file.loop.header106 call void @llvm_gcda_summary_info()107 call void @llvm_gcda_end_file()108 %next_file_idx = add i32 %file_idx, 1109 %17 = icmp slt i32 %next_file_idx, 1110 br i1 %17, label %file.loop.header, label %exit111 112exit: ; preds = %file.loop.latch113 ret void114}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 void131}132 133declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg)134 135 136