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; RUN: llc -mtriple thumbv7-apple-ios3.0.0 < %s 2>&1 >/dev/null | FileCheck %s
; Check the internal option that warns when the stack frame size exceeds the
; given amount.
; <rdar://13987214>
; CHECK-NOT: nowarn
define void @nowarn() nounwind ssp "frame-pointer"="all" "warn-stack-size"="80" {
entry:
%buffer = alloca [12 x i8], align 1
call void @doit(ptr %buffer) nounwind
ret void
}
; CHECK: warning: <unknown>:0:0: stack frame size ([[STCK:[0-9]+]]) exceeds limit (80) in function 'warn'
define i32 @warn() nounwind ssp "frame-pointer"="all" "warn-stack-size"="80" {
entry:
%var = alloca i32, align 4
%buffer = alloca [80 x i8], align 1
call void @doit(ptr %buffer) nounwind
call void @doit(ptr %var) nounwind
%val = load i32, ptr %var
ret i32 %val
}
; CHECK: warning: <unknown>:0:0: stack frame size ([[STCK:[0-9]+]]) exceeds limit (80) in function 'warn_safestack'
define i32 @warn_safestack() nounwind ssp safestack "warn-stack-size"="80" {
entry:
%var = alloca i32, align 4
%a = alloca i32, align 4
%buffer = alloca [80 x i8], align 1
call void @doit(ptr %buffer) nounwind
call void @doit(ptr %var) nounwind
%val = load i32, ptr %var
ret i32 %val
}
declare void @doit(ptr)
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