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DataLayout: Report when the preferred alignment is less than the ABI

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llvm-svn: 228819
This commit is contained in:
David Majnemer 2015-02-11 09:13:09 +00:00
parent 87fa2583a6
commit 61ddeb2d4b
2 changed files with 6 additions and 0 deletions
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3
lib/IR/DataLayout.cpp
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@ -312,6 +312,9 @@ void DataLayout::parseSpecifier(StringRef Desc) {
PrefAlign = inBytes(getInt(Tok));
}
if (ABIAlign > PrefAlign)
report_fatal_error(
"Preferred alignment cannot be less than the ABI alignment");
setAlignment(AlignType, ABIAlign, PrefAlign, Size);
break;

3
test/Assembler/invalid-datalayout14.ll Normal file
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@ -0,0 +1,3 @@
; RUN: not llvm-as < %s 2>&1 | FileCheck %s
target datalayout = "i64:64:16"
; CHECK: Preferred alignment cannot be less than the ABI alignment