| Duncan P. N. Exon Smith | b182635 | 2014-08-20 19:40:59 +0000 | [diff] [blame^] | 1 | ; RUN: llc < %s -march=x86-64 | FileCheck %s -check-prefix=X64 |
| 2 | ; RUN: llc < %s -march=x86 | FileCheck %s -check-prefix=X32 |
| 3 | |
| 4 | %struct.Baz = type { [17 x i8] } |
| 5 | %struct.__va_list_tag = type { i32, i32, i8*, i8* } |
| 6 | |
| 7 | ; Function Attrs: nounwind uwtable |
| 8 | define void @bar(%struct.Baz* byval nocapture readnone align 8 %x, ...) { |
| 9 | entry: |
| 10 | %va = alloca [1 x %struct.__va_list_tag], align 16 |
| 11 | %arraydecay = getelementptr inbounds [1 x %struct.__va_list_tag]* %va, i64 0, i64 0 |
| 12 | %arraydecay1 = bitcast [1 x %struct.__va_list_tag]* %va to i8* |
| 13 | call void @llvm.va_start(i8* %arraydecay1) |
| 14 | %overflow_arg_area_p = getelementptr inbounds [1 x %struct.__va_list_tag]* %va, i64 0, i64 0, i32 2 |
| 15 | %overflow_arg_area = load i8** %overflow_arg_area_p, align 8 |
| 16 | %overflow_arg_area.next = getelementptr i8* %overflow_arg_area, i64 24 |
| 17 | store i8* %overflow_arg_area.next, i8** %overflow_arg_area_p, align 8 |
| 18 | ; X32: leal 68(%esp), [[REG:%.*]] |
| 19 | ; X32: movl [[REG]], 16(%esp) |
| 20 | ; X64: leaq 232(%rsp), [[REG:%.*]] |
| 21 | ; X64: movq [[REG]], 184(%rsp) |
| 22 | ; X64: leaq 176(%rsp), %rdi |
| 23 | call void @qux(%struct.__va_list_tag* %arraydecay) |
| 24 | ret void |
| 25 | } |
| 26 | |
| 27 | ; Function Attrs: nounwind |
| 28 | declare void @llvm.va_start(i8*) |
| 29 | |
| 30 | declare void @qux(%struct.__va_list_tag*) |