; RUN: llc < %s -mtriple=aarch64-pc-win32 | FileCheck %s define void @pass_va(i32 %count, ...) nounwind { entry: ; CHECK: str x30, [sp, #-80]! ; CHECK: add x8, sp, #24 ; CHECK: add x0, sp, #24 ; CHECK: stp x6, x7, [sp, #64] ; CHECK: stp x4, x5, [sp, #48] ; CHECK: stp x2, x3, [sp, #32] ; CHECK: str x1, [sp, #24] ; CHECK: str x8, [sp, #8] ; CHECK: bl other_func ; CHECK: ldr x30, [sp], #80 ; CHECK: ret %ap = alloca i8*, align 8 %ap1 = bitcast i8** %ap to i8* call void @llvm.va_start(i8* %ap1) %ap2 = load i8*, i8** %ap, align 8 call void @other_func(i8* %ap2) ret void } declare void @other_func(i8*) local_unnamed_addr declare void @llvm.va_start(i8*) nounwind declare void @llvm.va_copy(i8*, i8*) nounwind ; CHECK-LABEL: f9: ; CHECK: sub sp, sp, #16 ; CHECK: add x8, sp, #24 ; CHECK: add x0, sp, #24 ; CHECK: str x8, [sp, #8] ; CHECK: add sp, sp, #16 ; CHECK: ret define i8* @f9(i64 %a0, i64 %a1, i64 %a2, i64 %a3, i64 %a4, i64 %a5, i64 %a6, i64 %a7, i64 %a8, ...) nounwind { entry: %ap = alloca i8*, align 8 %ap1 = bitcast i8** %ap to i8* call void @llvm.va_start(i8* %ap1) %ap2 = load i8*, i8** %ap, align 8 ret i8* %ap2 } ; CHECK-LABEL: f8: ; CHECK: sub sp, sp, #16 ; CHECK: add x8, sp, #16 ; CHECK: add x0, sp, #16 ; CHECK: str x8, [sp, #8] ; CHECK: add sp, sp, #16 ; CHECK: ret define i8* @f8(i64 %a0, i64 %a1, i64 %a2, i64 %a3, i64 %a4, i64 %a5, i64 %a6, i64 %a7, ...) nounwind { entry: %ap = alloca i8*, align 8 %ap1 = bitcast i8** %ap to i8* call void @llvm.va_start(i8* %ap1) %ap2 = load i8*, i8** %ap, align 8 ret i8* %ap2 } ; CHECK-LABEL: f7: ; CHECK: sub sp, sp, #32 ; CHECK: add x8, sp, #24 ; CHECK: str x7, [sp, #24] ; CHECK: add x0, sp, #24 ; CHECK: str x8, [sp, #8] ; CHECK: add sp, sp, #32 ; CHECK: ret define i8* @f7(i64 %a0, i64 %a1, i64 %a2, i64 %a3, i64 %a4, i64 %a5, i64 %a6, ...) nounwind { entry: %ap = alloca i8*, align 8 %ap1 = bitcast i8** %ap to i8* call void @llvm.va_start(i8* %ap1) %ap2 = load i8*, i8** %ap, align 8 ret i8* %ap2 } ; CHECK-LABEL: copy1: ; CHECK: sub sp, sp, #80 ; CHECK: add x8, sp, #24 ; CHECK: stp x6, x7, [sp, #64] ; CHECK: stp x4, x5, [sp, #48] ; CHECK: stp x2, x3, [sp, #32] ; CHECK: str x1, [sp, #24] ; CHECK: stp x8, x8, [sp], #80 ; CHECK: ret define void @copy1(i64 %a0, ...) nounwind { entry: %ap = alloca i8*, align 8 %cp = alloca i8*, align 8 %ap1 = bitcast i8** %ap to i8* %cp1 = bitcast i8** %cp to i8* call void @llvm.va_start(i8* %ap1) call void @llvm.va_copy(i8* %cp1, i8* %ap1) ret void } declare void @llvm.va_end(i8*) declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) #1 declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) #1 declare i32 @__stdio_common_vsprintf(i64, i8*, i64, i8*, i8*, i8*) local_unnamed_addr #3 declare i64* @__local_stdio_printf_options() local_unnamed_addr #4 ; CHECK-LABEL: fp ; CHECK: str x21, [sp, #-96]! ; CHECK: stp x20, x19, [sp, #16] ; CHECK: stp x29, x30, [sp, #32] ; CHECK: add x29, sp, #32 ; CHECK: add x8, x29, #24 ; CHECK: mov x19, x2 ; CHECK: mov x20, x1 ; CHECK: mov x21, x0 ; CHECK: stp x6, x7, [x29, #48] ; CHECK: stp x4, x5, [x29, #32] ; CHECK: str x3, [x29, #24] ; CHECK: str x8, [sp, #8] ; CHECK: bl __local_stdio_printf_options ; CHECK: ldr x8, [x0] ; CHECK: add x5, x29, #24 ; CHECK: mov x1, x21 ; CHECK: mov x2, x20 ; CHECK: orr x0, x8, #0x2 ; CHECK: mov x3, x19 ; CHECK: mov x4, xzr ; CHECK: bl __stdio_common_vsprintf ; CHECK: ldp x29, x30, [sp, #32] ; CHECK: ldp x20, x19, [sp, #16] ; CHECK: cmp w0, #0 ; CHECK: csinv w0, w0, wzr, ge ; CHECK: ldr x21, [sp], #96 ; CHECK: ret define i32 @fp(i8*, i64, i8*, ...) local_unnamed_addr #6 { %4 = alloca i8*, align 8 %5 = bitcast i8** %4 to i8* call void @llvm.lifetime.start.p0i8(i64 8, i8* nonnull %5) #2 call void @llvm.va_start(i8* nonnull %5) %6 = load i8*, i8** %4, align 8 %7 = call i64* @__local_stdio_printf_options() #2 %8 = load i64, i64* %7, align 8 %9 = or i64 %8, 2 %10 = call i32 @__stdio_common_vsprintf(i64 %9, i8* %0, i64 %1, i8* %2, i8* null, i8* %6) #2 %11 = icmp sgt i32 %10, -1 %12 = select i1 %11, i32 %10, i32 -1 call void @llvm.va_end(i8* nonnull %5) call void @llvm.lifetime.end.p0i8(i64 8, i8* nonnull %5) #2 ret i32 %12 } attributes #6 = { "no-frame-pointer-elim"="true" } ; CHECK-LABEL: vla ; CHECK: str x23, [sp, #-112]! ; CHECK: stp x22, x21, [sp, #16] ; CHECK: stp x20, x19, [sp, #32] ; CHECK: stp x29, x30, [sp, #48] ; CHECK: add x29, sp, #48 ; CHECK: add x8, x29, #16 ; CHECK: stur x8, [x29, #-40] ; CHECK: mov w8, w0 ; CHECK: add x8, x8, #15 ; CHECK: mov x9, sp ; CHECK: and x8, x8, #0x1fffffff0 ; CHECK: sub x20, x9, x8 ; CHECK: mov x19, x1 ; CHECK: mov x23, sp ; CHECK: stp x6, x7, [x29, #48] ; CHECK: stp x4, x5, [x29, #32] ; CHECK: stp x2, x3, [x29, #16] ; CHECK: mov sp, x20 ; CHECK: ldur x21, [x29, #-40] ; CHECK: sxtw x22, w0 ; CHECK: bl __local_stdio_printf_options ; CHECK: ldr x8, [x0] ; CHECK: mov x1, x20 ; CHECK: mov x2, x22 ; CHECK: mov x3, x19 ; CHECK: orr x0, x8, #0x2 ; CHECK: mov x4, xzr ; CHECK: mov x5, x21 ; CHECK: bl __stdio_common_vsprintf ; CHECK: mov sp, x23 ; CHECK: sub sp, x29, #48 ; CHECK: ldp x29, x30, [sp, #48] ; CHECK: ldp x20, x19, [sp, #32] ; CHECK: ldp x22, x21, [sp, #16] ; CHECK: ldr x23, [sp], #112 ; CHECK: ret define void @vla(i32, i8*, ...) local_unnamed_addr { %3 = alloca i8*, align 8 %4 = bitcast i8** %3 to i8* call void @llvm.lifetime.start.p0i8(i64 8, i8* nonnull %4) #5 call void @llvm.va_start(i8* nonnull %4) %5 = zext i32 %0 to i64 %6 = call i8* @llvm.stacksave() %7 = alloca i8, i64 %5, align 1 %8 = load i8*, i8** %3, align 8 %9 = sext i32 %0 to i64 %10 = call i64* @__local_stdio_printf_options() %11 = load i64, i64* %10, align 8 %12 = or i64 %11, 2 %13 = call i32 @__stdio_common_vsprintf(i64 %12, i8* nonnull %7, i64 %9, i8* %1, i8* null, i8* %8) call void @llvm.va_end(i8* nonnull %4) call void @llvm.stackrestore(i8* %6) call void @llvm.lifetime.end.p0i8(i64 8, i8* nonnull %4) #5 ret void } declare i8* @llvm.stacksave() declare void @llvm.stackrestore(i8*) ; CHECK-LABEL: snprintf ; CHECK: sub sp, sp, #96 ; CHECK: stp x21, x20, [sp, #16] ; CHECK: stp x19, x30, [sp, #32] ; CHECK: add x8, sp, #56 ; CHECK: mov x19, x2 ; CHECK: mov x20, x1 ; CHECK: mov x21, x0 ; CHECK: stp x6, x7, [sp, #80] ; CHECK: stp x4, x5, [sp, #64] ; CHECK: str x3, [sp, #56] ; CHECK: str x8, [sp, #8] ; CHECK: bl __local_stdio_printf_options ; CHECK: ldr x8, [x0] ; CHECK: add x5, sp, #56 ; CHECK: mov x1, x21 ; CHECK: mov x2, x20 ; CHECK: orr x0, x8, #0x2 ; CHECK: mov x3, x19 ; CHECK: mov x4, xzr ; CHECK: bl __stdio_common_vsprintf ; CHECK: ldp x19, x30, [sp, #32] ; CHECK: ldp x21, x20, [sp, #16] ; CHECK: cmp w0, #0 ; CHECK: csinv w0, w0, wzr, ge ; CHECK: add sp, sp, #96 ; CHECK: ret define i32 @snprintf(i8*, i64, i8*, ...) local_unnamed_addr #5 { %4 = alloca i8*, align 8 %5 = bitcast i8** %4 to i8* call void @llvm.lifetime.start.p0i8(i64 8, i8* nonnull %5) #2 call void @llvm.va_start(i8* nonnull %5) %6 = load i8*, i8** %4, align 8 %7 = call i64* @__local_stdio_printf_options() #2 %8 = load i64, i64* %7, align 8 %9 = or i64 %8, 2 %10 = call i32 @__stdio_common_vsprintf(i64 %9, i8* %0, i64 %1, i8* %2, i8* null, i8* %6) #2 %11 = icmp sgt i32 %10, -1 %12 = select i1 %11, i32 %10, i32 -1 call void @llvm.va_end(i8* nonnull %5) call void @llvm.lifetime.end.p0i8(i64 8, i8* nonnull %5) #2 ret i32 %12 } ; CHECK-LABEL: fixed_params ; CHECK: sub sp, sp, #32 ; CHECK: mov w8, w3 ; CHECK: mov w9, w2 ; CHECK: mov w10, w1 ; CHECK: str w4, [sp] ; CHECK: fmov x1, d0 ; CHECK: fmov x3, d1 ; CHECK: fmov x5, d2 ; CHECK: fmov x7, d3 ; CHECK: mov w2, w10 ; CHECK: mov w4, w9 ; CHECK: mov w6, w8 ; CHECK: str x30, [sp, #16] ; CHECK: str d4, [sp, #8] ; CHECK: bl varargs ; CHECK: ldr x30, [sp, #16] ; CHECK: add sp, sp, #32 ; CHECK: ret define void @fixed_params(i32, double, i32, double, i32, double, i32, double, i32, double) nounwind { tail call void (i32, ...) @varargs(i32 %0, double %1, i32 %2, double %3, i32 %4, double %5, i32 %6, double %7, i32 %8, double %9) ret void } declare void @varargs(i32, ...) local_unnamed_addr