diff options
Diffstat (limited to 'test/CodeGen/AArch64/arm64-shrink-v1i64.ll')
| -rw-r--r-- | test/CodeGen/AArch64/arm64-shrink-v1i64.ll | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/test/CodeGen/AArch64/arm64-shrink-v1i64.ll b/test/CodeGen/AArch64/arm64-shrink-v1i64.ll new file mode 100644 index 0000000..f31a570 --- /dev/null +++ b/test/CodeGen/AArch64/arm64-shrink-v1i64.ll @@ -0,0 +1,14 @@ +; RUN: llc -march=arm64 < %s + +; 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 +} |