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llvm-mirror/test/CodeGen/AArch64/arm64-shrink-v1i64.ll
Simon Pilgrim 91bb437eb8 [AARCH64] Enable AARCH64 lit tests on windows dev machines
As discussed on PR27654, this patch fixes the triples of a lot of aarch64 tests and enables lit tests on windows

This will hopefully help stop cases where windows developers break the aarch64 target

Differential Revision: https://reviews.llvm.org/D22191

llvm-svn: 275973
2016-07-19 13:35:11 +00:00

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549 B
LLVM

; RUN: llc < %s -mtriple=arm64-eabi
; The DAGCombiner tries to do following shrink:
; Convert x+y to (VT)((SmallVT)x+(SmallVT)y)
; But currently it can't handle vector type and will trigger an assertion failure
; when it tries to generate an add mixed using vector type and scaler type.
; This test checks that such assertion failur should not happen.
define <1 x i64> @dotest(<1 x i64> %in0) {
entry:
%0 = add <1 x i64> %in0, %in0
%vshl_n = shl <1 x i64> %0, <i64 32>
%vsra_n = ashr <1 x i64> %vshl_n, <i64 32>
ret <1 x i64> %vsra_n
}