diff options
Diffstat (limited to 'test/CodeGen/X86/win64_vararg.ll')
| -rw-r--r-- | test/CodeGen/X86/win64_vararg.ll | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/test/CodeGen/X86/win64_vararg.ll b/test/CodeGen/X86/win64_vararg.ll index 1a51b2a..8d7f201 100644 --- a/test/CodeGen/X86/win64_vararg.ll +++ b/test/CodeGen/X86/win64_vararg.ll @@ -111,3 +111,22 @@ entry: %tmp = va_arg i8** %ap, i32 ret i32 %tmp } + +define void @sret_arg(i32* sret %agg.result, i8* nocapture readnone %format, ...) { +entry: + %ap = alloca i8* + %ap_i8 = bitcast i8** %ap to i8* + call void @llvm.va_start(i8* %ap_i8) + %tmp = va_arg i8** %ap, i32 + store i32 %tmp, i32* %agg.result + ret void +} +; CHECK-LABEL: sret_arg: +; CHECK: pushq +; CHECK-DAG: movq %r9, 40(%rsp) +; CHECK-DAG: movq %r8, 32(%rsp) +; CHECK: movl 32(%rsp), %[[tmp:[^ ]*]] +; CHECK: movl %[[tmp]], (%[[sret:[^ ]*]]) +; CHECK: movq %[[sret]], %rax +; CHECK: popq +; CHECK: retq |