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d89c0abc07
There's no need to do this if the user doesn't call va_start. In the future, we're going to have thunks that forward these register parameters with musttail calls, and they won't need these spills for handling va_start. Most of the test suite changes are adding va_start calls to existing tests to keep things working. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216294 91177308-0d34-0410-b5e6-96231b3b80d8
16 lines
340 B
LLVM
16 lines
340 B
LLVM
; RUN: llc < %s -mtriple=thumb-apple-darwin | FileCheck %s
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; rdar://7268481
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define void @t(i8* %a, ...) nounwind {
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; CHECK-LABEL: t:
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; CHECK: pop {r3}
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; CHECK-NEXT: add sp, #12
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; CHECK-NEXT: bx r3
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entry:
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%a.addr = alloca i8, i32 4
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call void @llvm.va_start(i8* %a.addr)
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ret void
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}
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declare void @llvm.va_start(i8*) nounwind
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