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`llc -march` is problematic because it only switches the target architecture, but leaves the operating system unchanged. This occasionally leads to indeterministic tests because the OS from LLVM_DEFAULT_TARGET_TRIPLE is used. However we can simply always use `llc -mtriple` instead. This changes all the tests to do this to avoid people using -march when they copy and paste parts of tests. See also the discussion in https://reviews.llvm.org/D35287 llvm-svn: 309774
18 lines
414 B
LLVM
18 lines
414 B
LLVM
; RUN: llc -mtriple=x86_64-- < %s | not grep negq
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; These sequences don't need neg instructions; they can be done with
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; a single shift and sub each.
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define i64 @foo(i64 %x, i64 %y, i64 %n) nounwind {
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%a = sub i64 0, %y
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%b = shl i64 %a, %n
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%c = add i64 %b, %x
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ret i64 %c
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}
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define i64 @boo(i64 %x, i64 %y, i64 %n) nounwind {
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%a = sub i64 0, %y
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%b = shl i64 %a, %n
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%c = add i64 %x, %b
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ret i64 %c
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}
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