1; RUN: llc < %s -mtriple=x86_64-linux | FileCheck -check-prefix=X86-64 %s 2; Win64 has not supported byval yet. 3; RUN: llc < %s -march=x86 | FileCheck -check-prefix=X86 %s 4 5; X86: movl 4(%esp), %eax 6; X86: movl 8(%esp), %edx 7 8; X86-64: movq 8(%rsp), %rax 9 10%struct.s = type { i64, i64, i64 } 11 12define i64 @f(%struct.s* byval %a) { 13entry: 14 %tmp2 = getelementptr %struct.s, %struct.s* %a, i32 0, i32 0 15 %tmp3 = load i64, i64* %tmp2, align 8 16 ret i64 %tmp3 17} 18