}
; CHECK-LABEL: f7:
-; CHECK: sub sp, sp, #16
-; CHECK: add x8, sp, #8
-; CHECK: add x0, sp, #8
-; CHECK: stp x8, x7, [sp], #16
+; 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:
; CHECK: stp x6, x7, [sp, #64]
; CHECK: stp x4, x5, [sp, #48]
; CHECK: stp x2, x3, [sp, #32]
-; CHECK: stp x8, x1, [sp, #16]
-; CHECK: str x8, [sp, #8]
-; CHECK: add sp, sp, #80
+; CHECK: str x1, [sp, #24]
+; CHECK: stp x8, x8, [sp], #80
; CHECK: ret
define void @copy1(i64 %a0, ...) nounwind {
entry:
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: 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
+}