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      1 ; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s
      2 
      3 %struct.__va_list_tag = type { i32, i32, i8*, i8* }
      4 
      5 define void @foo(i32 %x, ...) nounwind {
      6 entry:
      7   %ap = alloca [1 x %struct.__va_list_tag], align 8; <[1 x %struct.__va_list_tag]*> [#uses=2]
      8   %ap12 = bitcast [1 x %struct.__va_list_tag]* %ap to i8*; <i8*> [#uses=2]
      9   call void @llvm.va_start(i8* %ap12)
     10 ; CHECK: testb %al, %al
     11 
     12 ; These test for specific offsets, which is very fragile. Still, the test needs
     13 ; to ensure that va_list has the correct element types.
     14 ;
     15 ; CHECK-DAG: movq {{.*}}, 192(%rsp)
     16 ; CHECK-DAG: movq {{.*}}, 184(%rsp)
     17 ; CHECK-DAG: movl {{.*}}, 180(%rsp)
     18 ; CHECK-DAG: movl {{.*}}, 176(%rsp)
     19   %ap3 = getelementptr inbounds [1 x %struct.__va_list_tag], [1 x %struct.__va_list_tag]* %ap, i64 0, i64 0; <%struct.__va_list_tag*> [#uses=1]
     20   call void @bar(%struct.__va_list_tag* %ap3) nounwind
     21   call void @llvm.va_end(i8* %ap12)
     22   ret void
     23 }
     24 
     25 declare void @llvm.va_start(i8*) nounwind
     26 
     27 declare void @bar(%struct.__va_list_tag*)
     28 
     29 declare void @llvm.va_end(i8*) nounwind
     30