; RUN: llc -march=hexagon -mcpu=hexagonv62 -mtriple=hexagon-unknown-linux-musl -O0 < %s | FileCheck %s ; CHECK-LABEL: foo: ; Check Function prologue. ; Note. All register numbers and offset are fixed. ; Hence, no need of regular expression. ; CHECK: r29 = add(r29,#-8) ; CHECK: memw(r29+#4) = r5 ; CHECK: r29 = add(r29,#8) %struct.AAA = type { i32, i32, i32, i32 } %struct.__va_list_tag = type { i8*, i8*, i8* } @aaa = global %struct.AAA { i32 100, i32 200, i32 300, i32 400 }, align 4 @.str = private unnamed_addr constant [13 x i8] c"result = %d\0A\00", align 1 ; Function Attrs: nounwind define i32 @foo(i32 %xx, i32 %a, i32 %b, i32 %c, i32 %x, ...) #0 { entry: %xx.addr = alloca i32, align 4 %a.addr = alloca i32, align 4 %b.addr = alloca i32, align 4 %c.addr = alloca i32, align 4 %x.addr = alloca i32, align 4 %ap = alloca [1 x %struct.__va_list_tag], align 8 %d = alloca i32, align 4 %ret = alloca i32, align 4 %bbb = alloca %struct.AAA, align 4 store i32 %xx, i32* %xx.addr, align 4 store i32 %a, i32* %a.addr, align 4 store i32 %b, i32* %b.addr, align 4 store i32 %c, i32* %c.addr, align 4 store i32 %x, i32* %x.addr, align 4 store i32 0, i32* %ret, align 4 %arraydecay = getelementptr inbounds [1 x %struct.__va_list_tag], [1 x %struct.__va_list_tag]* %ap, i32 0, i32 0 %arraydecay1 = bitcast %struct.__va_list_tag* %arraydecay to i8* call void @llvm.va_start(i8* %arraydecay1) %arraydecay2 = getelementptr inbounds [1 x %struct.__va_list_tag], [1 x %struct.__va_list_tag]* %ap, i32 0, i32 0 br label %vaarg.maybe_reg vaarg.maybe_reg: ; preds = %entry %__current_saved_reg_area_pointer_p = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* %arraydecay2, i32 0, i32 0 %__current_saved_reg_area_pointer = load i8*, i8** %__current_saved_reg_area_pointer_p %__saved_reg_area_end_pointer_p = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* %arraydecay2, i32 0, i32 1 %__saved_reg_area_end_pointer = load i8*, i8** %__saved_reg_area_end_pointer_p %0 = ptrtoint i8* %__current_saved_reg_area_pointer to i32 %align_current_saved_reg_area_pointer = add i32 %0, 7 %align_current_saved_reg_area_pointer3 = and i32 %align_current_saved_reg_area_pointer, -8 %align_current_saved_reg_area_pointer4 = inttoptr i32 %align_current_saved_reg_area_pointer3 to i8* %__new_saved_reg_area_pointer = getelementptr i8, i8* %align_current_saved_reg_area_pointer4, i32 8 %1 = icmp sgt i8* %__new_saved_reg_area_pointer, %__saved_reg_area_end_pointer br i1 %1, label %vaarg.on_stack, label %vaarg.in_reg vaarg.in_reg: ; preds = %vaarg.maybe_reg %2 = bitcast i8* %align_current_saved_reg_area_pointer4 to i64* store i8* %__new_saved_reg_area_pointer, i8** %__current_saved_reg_area_pointer_p br label %vaarg.end vaarg.on_stack: ; preds = %vaarg.maybe_reg %__overflow_area_pointer_p = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* %arraydecay2, i32 0, i32 2 %__overflow_area_pointer = load i8*, i8** %__overflow_area_pointer_p %3 = ptrtoint i8* %__overflow_area_pointer to i32 %align_overflow_area_pointer = add i32 %3, 7 %align_overflow_area_pointer5 = and i32 %align_overflow_area_pointer, -8 %align_overflow_area_pointer6 = inttoptr i32 %align_overflow_area_pointer5 to i8* %__overflow_area_pointer.next = getelementptr i8, i8* %align_overflow_area_pointer6, i32 8 store i8* %__overflow_area_pointer.next, i8** %__overflow_area_pointer_p store i8* %__overflow_area_pointer.next, i8** %__current_saved_reg_area_pointer_p %4 = bitcast i8* %align_overflow_area_pointer6 to i64* br label %vaarg.end vaarg.end: ; preds = %vaarg.on_stack, %vaarg.in_reg %vaarg.addr = phi i64* [ %2, %vaarg.in_reg ], [ %4, %vaarg.on_stack ] %5 = load i64, i64* %vaarg.addr %conv = trunc i64 %5 to i32 store i32 %conv, i32* %d, align 4 %6 = load i32, i32* %d, align 4 %7 = load i32, i32* %ret, align 4 %add = add nsw i32 %7, %6 store i32 %add, i32* %ret, align 4 %arraydecay7 = getelementptr inbounds [1 x %struct.__va_list_tag], [1 x %struct.__va_list_tag]* %ap, i32 0, i32 0 %__overflow_area_pointer_p8 = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* %arraydecay7, i32 0, i32 2 %__overflow_area_pointer9 = load i8*, i8** %__overflow_area_pointer_p8 %8 = bitcast i8* %__overflow_area_pointer9 to %struct.AAA* %__overflow_area_pointer.next10 = getelementptr i8, i8* %__overflow_area_pointer9, i32 16 store i8* %__overflow_area_pointer.next10, i8** %__overflow_area_pointer_p8 %9 = bitcast %struct.AAA* %bbb to i8* %10 = bitcast %struct.AAA* %8 to i8* call void @llvm.memcpy.p0i8.p0i8.i32(i8* %9, i8* %10, i32 16, i32 4, i1 false) %d11 = getelementptr inbounds %struct.AAA, %struct.AAA* %bbb, i32 0, i32 3 %11 = load i32, i32* %d11, align 4 %12 = load i32, i32* %ret, align 4 %add12 = add nsw i32 %12, %11 store i32 %add12, i32* %ret, align 4 %arraydecay13 = getelementptr inbounds [1 x %struct.__va_list_tag], [1 x %struct.__va_list_tag]* %ap, i32 0, i32 0 br label %vaarg.maybe_reg14 vaarg.maybe_reg14: ; preds = %vaarg.end %__current_saved_reg_area_pointer_p15 = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* %arraydecay13, i32 0, i32 0 %__current_saved_reg_area_pointer16 = load i8*, i8** %__current_saved_reg_area_pointer_p15 %__saved_reg_area_end_pointer_p17 = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* %arraydecay13, i32 0, i32 1 %__saved_reg_area_end_pointer18 = load i8*, i8** %__saved_reg_area_end_pointer_p17 %__new_saved_reg_area_pointer19 = getelementptr i8, i8* %__current_saved_reg_area_pointer16, i32 4 %13 = icmp sgt i8* %__new_saved_reg_area_pointer19, %__saved_reg_area_end_pointer18 br i1 %13, label %vaarg.on_stack21, label %vaarg.in_reg20 vaarg.in_reg20: ; preds = %vaarg.maybe_reg14 %14 = bitcast i8* %__current_saved_reg_area_pointer16 to i32* store i8* %__new_saved_reg_area_pointer19, i8** %__current_saved_reg_area_pointer_p15 br label %vaarg.end25 vaarg.on_stack21: ; preds = %vaarg.maybe_reg14 %__overflow_area_pointer_p22 = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* %arraydecay13, i32 0, i32 2 %__overflow_area_pointer23 = load i8*, i8** %__overflow_area_pointer_p22 %__overflow_area_pointer.next24 = getelementptr i8, i8* %__overflow_area_pointer23, i32 4 store i8* %__overflow_area_pointer.next24, i8** %__overflow_area_pointer_p22 store i8* %__overflow_area_pointer.next24, i8** %__current_saved_reg_area_pointer_p15 %15 = bitcast i8* %__overflow_area_pointer23 to i32* br label %vaarg.end25 vaarg.end25: ; preds = %vaarg.on_stack21, %vaarg.in_reg20 %vaarg.addr26 = phi i32* [ %14, %vaarg.in_reg20 ], [ %15, %vaarg.on_stack21 ] %16 = load i32, i32* %vaarg.addr26 store i32 %16, i32* %d, align 4 %17 = load i32, i32* %d, align 4 %18 = load i32, i32* %ret, align 4 %add27 = add nsw i32 %18, %17 store i32 %add27, i32* %ret, align 4 %arraydecay28 = getelementptr inbounds [1 x %struct.__va_list_tag], [1 x %struct.__va_list_tag]* %ap, i32 0, i32 0 br label %vaarg.maybe_reg29 vaarg.maybe_reg29: ; preds = %vaarg.end25 %__current_saved_reg_area_pointer_p30 = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* %arraydecay28, i32 0, i32 0 %__current_saved_reg_area_pointer31 = load i8*, i8** %__current_saved_reg_area_pointer_p30 %__saved_reg_area_end_pointer_p32 = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* %arraydecay28, i32 0, i32 1 %__saved_reg_area_end_pointer33 = load i8*, i8** %__saved_reg_area_end_pointer_p32 %19 = ptrtoint i8* %__current_saved_reg_area_pointer31 to i32 %align_current_saved_reg_area_pointer34 = add i32 %19, 7 %align_current_saved_reg_area_pointer35 = and i32 %align_current_saved_reg_area_pointer34, -8 %align_current_saved_reg_area_pointer36 = inttoptr i32 %align_current_saved_reg_area_pointer35 to i8* %__new_saved_reg_area_pointer37 = getelementptr i8, i8* %align_current_saved_reg_area_pointer36, i32 8 %20 = icmp sgt i8* %__new_saved_reg_area_pointer37, %__saved_reg_area_end_pointer33 br i1 %20, label %vaarg.on_stack39, label %vaarg.in_reg38 vaarg.in_reg38: ; preds = %vaarg.maybe_reg29 %21 = bitcast i8* %align_current_saved_reg_area_pointer36 to i64* store i8* %__new_saved_reg_area_pointer37, i8** %__current_saved_reg_area_pointer_p30 br label %vaarg.end46 vaarg.on_stack39: ; preds = %vaarg.maybe_reg29 %__overflow_area_pointer_p40 = getelementptr inbounds %struct.__va_list_tag, %struct.__va_list_tag* %arraydecay28, i32 0, i32 2 %__overflow_area_pointer41 = load i8*, i8** %__overflow_area_pointer_p40 %22 = ptrtoint i8* %__overflow_area_pointer41 to i32 %align_overflow_area_pointer42 = add i32 %22, 7 %align_overflow_area_pointer43 = and i32 %align_overflow_area_pointer42, -8 %align_overflow_area_pointer44 = inttoptr i32 %align_overflow_area_pointer43 to i8* %__overflow_area_pointer.next45 = getelementptr i8, i8* %align_overflow_area_pointer44, i32 8 store i8* %__overflow_area_pointer.next45, i8** %__overflow_area_pointer_p40 store i8* %__overflow_area_pointer.next45, i8** %__current_saved_reg_area_pointer_p30 %23 = bitcast i8* %align_overflow_area_pointer44 to i64* br label %vaarg.end46 vaarg.end46: ; preds = %vaarg.on_stack39, %vaarg.in_reg38 %vaarg.addr47 = phi i64* [ %21, %vaarg.in_reg38 ], [ %23, %vaarg.on_stack39 ] %24 = load i64, i64* %vaarg.addr47 %conv48 = trunc i64 %24 to i32 store i32 %conv48, i32* %d, align 4 %25 = load i32, i32* %d, align 4 %26 = load i32, i32* %ret, align 4 %add49 = add nsw i32 %26, %25 store i32 %add49, i32* %ret, align 4 %arraydecay50 = getelementptr inbounds [1 x %struct.__va_list_tag], [1 x %struct.__va_list_tag]* %ap, i32 0, i32 0 %arraydecay5051 = bitcast %struct.__va_list_tag* %arraydecay50 to i8* call void @llvm.va_end(i8* %arraydecay5051) %27 = load i32, i32* %ret, align 4 ret i32 %27 } ; Function Attrs: nounwind declare void @llvm.va_start(i8*) #1 ; Function Attrs: nounwind declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture readonly, i32, i32, i1) #1 ; Function Attrs: nounwind declare void @llvm.va_end(i8*) #1 ; Function Attrs: nounwind define i32 @main() #0 { entry: %retval = alloca i32, align 4 %x = alloca i32, align 4 %y = alloca i64, align 8 store i32 0, i32* %retval store i64 1000000, i64* %y, align 8 %0 = load i64, i64* %y, align 8 %1 = load i64, i64* %y, align 8 %call = call i32 (i32, i32, i32, i32, i32, ...) @foo(i32 1, i32 2, i32 3, i32 4, i32 5, i64 %0, %struct.AAA* byval(%struct.AAA) align 4 @aaa, i32 4, i64 %1) store i32 %call, i32* %x, align 4 %2 = load i32, i32* %x, align 4 %call1 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i32 0, i32 0), i32 %2) %3 = load i32, i32* %x, align 4 ret i32 %3 } declare i32 @printf(i8*, ...) #2 attributes #0 = { nounwind } !llvm.ident = !{!0} !0 = !{!"Clang 3.1"}