| ; 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) |
