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91b978e157
Per discussion in rdar://13127907, we should emit a hard error only if people write code where the requested alignment is larger than achievable and assumes the low bits are zeros. A warning should be good enough when we are not sure if the source code assumes the low bits are zeros. rdar://13127907 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174336 91177308-0d34-0410-b5e6-96231b3b80d8
20 lines
795 B
LLVM
20 lines
795 B
LLVM
; RUN: llc < %s -mtriple=armv7-apple-ios -O0 -realign-stack=0 2>&1 | FileCheck %s
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; rdar://12713765
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@T3_retval = common global <16 x float> zeroinitializer, align 16
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; If alignment for alloc is smaller than or equal to stack alignment, but the
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; preferred type alignment is bigger, the alignment will be clamped.
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; If alignment for alloca is bigger than stack alignment, the compiler
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; will emit a warning.
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define void @test(<16 x float>* noalias sret %agg.result) nounwind ssp {
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entry:
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; CHECK: warning: Requested alignment exceeds the stack alignment!
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%retval = alloca <16 x float>, align 16
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%0 = load <16 x float>* @T3_retval, align 16
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store <16 x float> %0, <16 x float>* %retval
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%1 = load <16 x float>* %retval
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store <16 x float> %1, <16 x float>* %agg.result, align 16
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ret void
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}
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