llvm/test/CodeGen/X86/2009-01-31-BigShift2.ll
Duncan Sands 92abc62399 Fix PR3401: when using large integers, the type
returned by getShiftAmountTy may be too small
to hold shift values (it is an i8 on x86-32).
Before and during type legalization, use a large
but legal type for shift amounts: getPointerTy;
afterwards use getShiftAmountTy, fixing up any
shift amounts with a big type during operation
legalization.  Thanks to Dan for writing the
original patch (which I shamelessly pillaged).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63482 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31 15:50:11 +00:00

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368 B
LLVM

; RUN: llvm-as < %s | llc -march=x86 | grep {mov.*56}
; PR3449
define void @test(<8 x double>* %P, i64* %Q) nounwind {
%A = load <8 x double>* %P ; <<8 x double>> [#uses=1]
%B = bitcast <8 x double> %A to i512 ; <i512> [#uses=1]
%C = lshr i512 %B, 448 ; <i512> [#uses=1]
%D = trunc i512 %C to i64 ; <i64> [#uses=1]
volatile store i64 %D, i64* %Q
ret void
}