80 lines · c
1// REQUIRES: hexagon-registered-target2// RUN: %clang_cc1 -emit-llvm -triple hexagon-unknown-linux-musl %s -o - | FileCheck %s3#include <stdarg.h>4 5struct AAA {6 int x;7 int y;8 int z;9 int d;10};11 12// CHECK: call void @llvm.va_start.p0(ptr %arraydecay)13// CHECK: %arraydecay1 = getelementptr inbounds [1 x %struct.__va_list_tag],14// ptr %ap, i32 0, i32 015// CHECK: br label %vaarg.maybe_reg16 17// CHECK: vaarg.maybe_reg: ; preds = %entry18// CHECK: %__current_saved_reg_area_pointer_p = getelementptr inbounds19// %struct.__va_list_tag, ptr %arraydecay2, i32 0, i32 020// CHECK: %__current_saved_reg_area_pointer = load ptr, ptr21// %__current_saved_reg_area_pointer_p22// CHECK: %__saved_reg_area_end_pointer_p = getelementptr inbounds23// %struct.__va_list_tag, ptr %arraydecay2, i32 0, i32 124// CHECK: %__saved_reg_area_end_pointer = load ptr, ptr25// %__saved_reg_area_end_pointer_p26// CHECK: %__new_saved_reg_area_pointer = getelementptr i8, ptr27// %__current_saved_reg_area_pointer, i32 428// CHECK: %0 = icmp sgt ptr %__new_saved_reg_area_pointer,29// %__saved_reg_area_end_pointer30// CHECK: br i1 %0, label %vaarg.on_stack, label %vaarg.in_reg31 32// CHECK: vaarg.in_reg: ; preds =33// %vaarg.maybe_reg34// CHECK: store ptr %__new_saved_reg_area_pointer, ptr35// %__current_saved_reg_area_pointer_p36// CHECK: br label %vaarg.end37 38// CHECK: vaarg.on_stack: ; preds =39// %vaarg.maybe_reg40// CHECK: %__overflow_area_pointer_p = getelementptr inbounds41// %struct.__va_list_tag, ptr %arraydecay2, i32 0, i32 242// CHECK: %__overflow_area_pointer = load ptr, ptr %__overflow_area_pointer_p43// CHECK: %__overflow_area_pointer.next = getelementptr i8, ptr44// %__overflow_area_pointer, i32 445// CHECK: store ptr %__overflow_area_pointer.next, ptr46// %__overflow_area_pointer_p47// CHECK: store ptr %__overflow_area_pointer.next, ptr48// %__current_saved_reg_area_pointer_p49// CHECK: br label %vaarg.end50 51// CHECK: vaarg.end: ; preds =52// %vaarg.on_stack, %vaarg.in_reg53// CHECK: %vaarg.addr = phi ptr [ %__current_saved_reg_area_pointer, %vaarg.in_reg ], [ %__overflow_area_pointer, %vaarg.on_stack54// ]55// CHECK: %1 = load i32, ptr %vaarg.addr56 57struct AAA aaa = {100, 200, 300, 400};58 59int foo(int xx, ...) {60 va_list ap;61 int d;62 int ret = 0;63 struct AAA bbb;64 va_start(ap, xx);65 d = va_arg(ap, int);66 ret += d;67 bbb = va_arg(ap, struct AAA);68 ret += bbb.d;69 d = va_arg(ap, int);70 ret += d;71 va_end(ap);72 return ret;73}74 75int main(void) {76 int x;77 x = foo(1, 2, aaa, 4);78 return x;79}80