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; Tests if the __llvm_gcov_ctr section contains a .ref pseudo-op
; referring to the __llvm_covinit section.
; RUN: llc < %s | FileCheck --check-prefixes=CHECK,CHECK-RW %s
; RUN: llc -mxcoff-roptr < %s | FileCheck --check-prefixes=CHECK,CHECK-RO %s
target datalayout = "E-m:a-p:32:32-Fi32-i64:64-n32"
target triple = "powerpc-ibm-aix"
; CHECK-RW: .csect __llvm_covinit[RW],3
; CHECK-RO: .csect __llvm_covinit[RO],3
; CHECK-NEXT: .align 3 # @__llvm_covinit_functions
; CHECK-NEXT: L..__llvm_covinit_functions:
; CHECK-NEXT: .vbyte 4, __llvm_gcov_writeout[DS]
; CHECK-NEXT: .vbyte 4, __llvm_gcov_reset[DS]
; CHECK: .csect __llvm_gcov_ctr_section[RW],3
; CHECK-NEXT: .lglobl __llvm_gcov_ctr # @_MergedGlobals
; CHECK-NEXT: .lglobl __llvm_gcov_ctr.1
; CHECK-NEXT: .align 3
; CHECK-NEXT: L.._MergedGlobals:
; CHECK-NEXT: __llvm_gcov_ctr:
; CHECK-NEXT: .space 8
; CHECK-NEXT: __llvm_gcov_ctr.1:
; CHECK-NEXT: .space 8
; CHECK: .csect __llvm_gcov_ctr_section[RW],3
; CHECK-RW-NEXT: .ref __llvm_covinit[RW]
; CHECK-RO-NEXT: .ref __llvm_covinit[RO]
%emit_function_args_ty = type { i32, i32, i32 }
%emit_arcs_args_ty = type { i32, ptr }
%file_info = type { %start_file_args_ty, i32, ptr, ptr }
%start_file_args_ty = type { ptr, i32, i32 }
@__llvm_gcov_ctr = internal global [1 x i64] zeroinitializer, section "__llvm_gcov_ctr_section"
@__llvm_gcov_ctr.1 = internal global [1 x i64] zeroinitializer, section "__llvm_gcov_ctr_section"
@0 = private unnamed_addr constant [10 x i8] c"test.gcda\00", align 1
@__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 }]
@__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 }]
@__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 }]
@__llvm_covinit_functions = private constant { ptr, ptr } { ptr @__llvm_gcov_writeout, ptr @__llvm_gcov_reset }, section "__llvm_covinit", align 8
define i32 @bar() {
entry:
%gcov_ctr = load i64, ptr @__llvm_gcov_ctr, align 8
%0 = add i64 %gcov_ctr, 1
store i64 %0, ptr @__llvm_gcov_ctr, align 8
ret i32 1
}
define i32 @main() {
entry:
%gcov_ctr = load i64, ptr @__llvm_gcov_ctr.1, align 8
%0 = add i64 %gcov_ctr, 1
store i64 %0, ptr @__llvm_gcov_ctr.1, align 8
%retval = alloca i32, align 4
store i32 0, ptr %retval, align 4
%call = call i32 @bar()
%sub = sub nsw i32 %call, 1
ret i32 %sub
}
define internal void @__llvm_gcov_writeout() unnamed_addr {
entry:
br label %file.loop.header
file.loop.header: ; preds = %file.loop.latch, %entry
%file_idx = phi i32 [ 0, %entry ], [ %next_file_idx, %file.loop.latch ]
%0 = getelementptr inbounds [1 x %file_info], ptr @__llvm_internal_gcov_emit_file_info, i32 0, i32 %file_idx
%start_file_args = getelementptr inbounds nuw %file_info, ptr %0, i32 0, i32 0
%1 = getelementptr inbounds nuw %start_file_args_ty, ptr %start_file_args, i32 0, i32 0
%filename = load ptr, ptr %1, align 4
%2 = getelementptr inbounds nuw %start_file_args_ty, ptr %start_file_args, i32 0, i32 1
%version = load i32, ptr %2, align 4
%3 = getelementptr inbounds nuw %start_file_args_ty, ptr %start_file_args, i32 0, i32 2
%stamp = load i32, ptr %3, align 4
call void @llvm_gcda_start_file(ptr %filename, i32 %version, i32 %stamp)
%4 = getelementptr inbounds nuw %file_info, ptr %0, i32 0, i32 1
%num_ctrs = load i32, ptr %4, align 4
%5 = getelementptr inbounds nuw %file_info, ptr %0, i32 0, i32 2
%emit_function_args = load ptr, ptr %5, align 4
%6 = getelementptr inbounds nuw %file_info, ptr %0, i32 0, i32 3
%emit_arcs_args = load ptr, ptr %6, align 4
%7 = icmp slt i32 0, %num_ctrs
br i1 %7, label %counter.loop.header, label %file.loop.latch
counter.loop.header: ; preds = %counter.loop.header, %file.loop.header
%ctr_idx = phi i32 [ 0, %file.loop.header ], [ %15, %counter.loop.header ]
%8 = getelementptr inbounds %emit_function_args_ty, ptr %emit_function_args, i32 %ctr_idx
%9 = getelementptr inbounds nuw %emit_function_args_ty, ptr %8, i32 0, i32 0
%ident = load i32, ptr %9, align 4
%10 = getelementptr inbounds nuw %emit_function_args_ty, ptr %8, i32 0, i32 1
%func_checkssum = load i32, ptr %10, align 4
%11 = getelementptr inbounds nuw %emit_function_args_ty, ptr %8, i32 0, i32 2
%cfg_checksum = load i32, ptr %11, align 4
call void @llvm_gcda_emit_function(i32 %ident, i32 %func_checkssum, i32 %cfg_checksum)
%12 = getelementptr inbounds %emit_arcs_args_ty, ptr %emit_arcs_args, i32 %ctr_idx
%13 = getelementptr inbounds nuw %emit_arcs_args_ty, ptr %12, i32 0, i32 0
%num_counters = load i32, ptr %13, align 4
%14 = getelementptr inbounds nuw %emit_arcs_args_ty, ptr %12, i32 0, i32 1
%counters = load ptr, ptr %14, align 4
call void @llvm_gcda_emit_arcs(i32 %num_counters, ptr %counters)
%15 = add i32 %ctr_idx, 1
%16 = icmp slt i32 %15, %num_ctrs
br i1 %16, label %counter.loop.header, label %file.loop.latch
file.loop.latch: ; preds = %counter.loop.header, %file.loop.header
call void @llvm_gcda_summary_info()
call void @llvm_gcda_end_file()
%next_file_idx = add i32 %file_idx, 1
%17 = icmp slt i32 %next_file_idx, 1
br i1 %17, label %file.loop.header, label %exit
exit: ; preds = %file.loop.latch
ret void
}
declare void @llvm_gcda_start_file(ptr, i32, i32)
declare void @llvm_gcda_emit_function(i32, i32, i32)
declare void @llvm_gcda_emit_arcs(i32, ptr)
declare void @llvm_gcda_summary_info()
declare void @llvm_gcda_end_file()
define internal void @__llvm_gcov_reset() unnamed_addr {
entry:
call void @llvm.memset.p0.i64(ptr @__llvm_gcov_ctr, i8 0, i64 8, i1 false)
call void @llvm.memset.p0.i64(ptr @__llvm_gcov_ctr.1, i8 0, i64 8, i1 false)
ret void
}
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg)
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