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Diffstat (limited to 'test/CodeGen/AArch64/trunc-v1i64.ll')
| -rw-r--r-- | test/CodeGen/AArch64/trunc-v1i64.ll | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/test/CodeGen/AArch64/trunc-v1i64.ll b/test/CodeGen/AArch64/trunc-v1i64.ll deleted file mode 100644 index 19efd2fafd5e..000000000000 --- a/test/CodeGen/AArch64/trunc-v1i64.ll +++ /dev/null @@ -1,82 +0,0 @@ -; RUN: llc -mtriple=aarch64-none-linux-gnu -mattr=+neon -verify-machineinstrs < %s | FileCheck %s - -; An optimization in DAG Combiner to fold -; (trunc (concat ... x ...)) -> (concat ..., (trunc x), ...)) -; will generate nodes like: -; v1i32 trunc v1i64, v1i16 trunc v1i64, v1i8 trunc v1i64. -; And such nodes will be defaultly scalarized in type legalization. But such -; scalarization will cause an assertion failure, as v1i64 is a legal type in -; AArch64. We change the default behaviour from be scalarized to be widen. - -; FIXME: Currently XTN is generated for v1i32, but it can be optimized. -; Just like v1i16 and v1i8, there is no XTN generated. - -define <2 x i32> @test_v1i32_0(<1 x i64> %in0) { -; CHECK-LABEL: test_v1i32_0: -; CHECK: xtn v0.2s, v0.2d - %1 = shufflevector <1 x i64> %in0, <1 x i64> undef, <2 x i32> <i32 0, i32 undef> - %2 = trunc <2 x i64> %1 to <2 x i32> - ret <2 x i32> %2 -} - -define <2 x i32> @test_v1i32_1(<1 x i64> %in0) { -; CHECK-LABEL: test_v1i32_1: -; CHECK: xtn v0.2s, v0.2d -; CHECK-NEXT: dup v0.2s, v0.s[0] - %1 = shufflevector <1 x i64> %in0, <1 x i64> undef, <2 x i32> <i32 undef, i32 0> - %2 = trunc <2 x i64> %1 to <2 x i32> - ret <2 x i32> %2 -} - -define <4 x i16> @test_v1i16_0(<1 x i64> %in0) { -; CHECK-LABEL: test_v1i16_0: -; CHECK-NOT: xtn - %1 = shufflevector <1 x i64> %in0, <1 x i64> undef, <4 x i32> <i32 0, i32 undef, i32 undef, i32 undef> - %2 = trunc <4 x i64> %1 to <4 x i16> - ret <4 x i16> %2 -} - -define <4 x i16> @test_v1i16_1(<1 x i64> %in0) { -; CHECK-LABEL: test_v1i16_1: -; CHECK-NOT: xtn -; CHECK: dup v0.4h, v0.h[0] - %1 = shufflevector <1 x i64> %in0, <1 x i64> undef, <4 x i32> <i32 undef, i32 undef, i32 0, i32 undef> - %2 = trunc <4 x i64> %1 to <4 x i16> - ret <4 x i16> %2 -} - -define <8 x i8> @test_v1i8_0(<1 x i64> %in0) { -; CHECK-LABEL: test_v1i8_0: -; CHECK-NOT: xtn - %1 = shufflevector <1 x i64> %in0, <1 x i64> undef, <8 x i32> <i32 0, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef> - %2 = trunc <8 x i64> %1 to <8 x i8> - ret <8 x i8> %2 -} - -define <8 x i8> @test_v1i8_1(<1 x i64> %in0) { -; CHECK-LABEL: test_v1i8_1: -; CHECK-NOT: xtn -; CHECK: dup v0.8b, v0.b[0] - %1 = shufflevector <1 x i64> %in0, <1 x i64> undef, <8 x i32> <i32 undef, i32 undef, i32 0, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef> - %2 = trunc <8 x i64> %1 to <8 x i8> - ret <8 x i8> %2 -} - -; PR20777: v1i1 is also problematic, but we can't widen it, so we extract_elt -; the i64 out of the v1i64 operand, and truncate that scalar instead. - -define <1 x i1> @test_v1i1_0(<1 x i64> %in0) { -; CHECK-LABEL: test_v1i1_0: -; CHECK: fmov w0, s0 - %1 = trunc <1 x i64> %in0 to <1 x i1> - ret <1 x i1> %1 -} - -define i1 @test_v1i1_1(<1 x i64> %in0) { -; CHECK-LABEL: test_v1i1_1: -; CHECK: fmov [[REG:w[0-9]+]], s0 - %1 = trunc <1 x i64> %in0 to <1 x i1> -; CHECK: and w0, [[REG]], #0x1 - %2 = extractelement <1 x i1> %1, i32 0 - ret i1 %2 -} |
