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c0cc28301a
instantiation issue with non-standard type. Add a backend option to warn on a given stack size limit. Option: -mllvm -warn-stack-size=<limit> Output (if limit is exceeded): warning: Stack size limit exceeded (<actual size>) in <functionName>. The longer term plan is to hook that to a clang warning. PR:4072 <rdar://problem/13987214>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183595 91177308-0d34-0410-b5e6-96231b3b80d8
25 lines
735 B
LLVM
25 lines
735 B
LLVM
; RUN: llc -mtriple x86_64-apple-macosx10.8.0 -warn-stack-size=80 < %s 2>&1 >/dev/null | FileCheck %s
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; Check the internal option that warns when the stack size exceeds the
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; given amount.
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; <rdar://13987214>
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; CHECK-NOT: nowarn
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define void @nowarn() nounwind ssp {
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entry:
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%buffer = alloca [12 x i8], align 1
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%arraydecay = getelementptr inbounds [12 x i8]* %buffer, i64 0, i64 0
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call void @doit(i8* %arraydecay) nounwind
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ret void
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}
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; CHECK: warning: Stack size limit exceeded (104) in warn.
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define void @warn() nounwind ssp {
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entry:
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%buffer = alloca [80 x i8], align 1
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%arraydecay = getelementptr inbounds [80 x i8]* %buffer, i64 0, i64 0
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call void @doit(i8* %arraydecay) nounwind
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ret void
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}
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declare void @doit(i8*)
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