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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
26 lines
765 B
LLVM
26 lines
765 B
LLVM
; RUN: llc < %s -march=arm -mtriple=arm-linux-gnueabi | FileCheck %s -check-prefix=EABI
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; RUN: llc < %s -march=arm -mtriple=arm-linux-gnu | FileCheck %s -check-prefix=OABI
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define i32 @f(i32 %a, ...) {
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entry:
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%a_addr = alloca i32 ; <i32*> [#uses=1]
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%retval = alloca i32, align 4 ; <i32*> [#uses=2]
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%tmp = alloca i32, align 4 ; <i32*> [#uses=2]
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store i32 %a, i32* %a_addr
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store i32 0, i32* %tmp
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%tmp1 = load i32* %tmp ; <i32> [#uses=1]
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store i32 %tmp1, i32* %retval
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call void @llvm.va_start(i8* null)
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br label %return
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return: ; preds = %entry
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%retval2 = load i32* %retval ; <i32> [#uses=1]
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ret i32 %retval2
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; EABI: add sp, sp, #12
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; EABI: add sp, sp, #16
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; OABI: add sp, sp, #12
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; OABI: add sp, sp, #12
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}
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declare void @llvm.va_start(i8*) nounwind
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