xref: /llvm-project/llvm/test/Transforms/InstCombine/scalable-trunc.ll (revision 4ab40eca080965c65802710e39adbb78c4ce7bde) 
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt -passes=instcombine -S < %s | FileCheck %s
3
4define void @trunc_nxv2i64_to_nxv2i32(ptr %ptr, <vscale x 4 x i32> %v) {
5; CHECK-LABEL: @trunc_nxv2i64_to_nxv2i32(
6; CHECK-NEXT:  entry:
7; CHECK-NEXT:    [[TMP0:%.*]] = call <vscale x 16 x i1> @llvm.aarch64.sve.ptrue.nxv16i1(i32 31)
8; CHECK-NEXT:    [[TMP1:%.*]] = bitcast <vscale x 4 x i32> [[V:%.*]] to <vscale x 2 x i64>
9; CHECK-NEXT:    [[TMP2:%.*]] = call <vscale x 2 x i1> @llvm.aarch64.sve.convert.from.svbool.nxv2i1(<vscale x 16 x i1> [[TMP0]])
10; CHECK-NEXT:    [[TMP3:%.*]] = trunc <vscale x 2 x i64> [[TMP1]] to <vscale x 2 x i32>
11; CHECK-NEXT:    call void @llvm.aarch64.sve.st1.nxv2i32(<vscale x 2 x i32> [[TMP3]], <vscale x 2 x i1> [[TMP2]], ptr [[PTR:%.*]])
12; CHECK-NEXT:    ret void
13;
14entry:
15  %0 = call <vscale x 16 x i1> @llvm.aarch64.sve.ptrue.nxv16i1(i32 31)
16  %1 = bitcast <vscale x 4 x i32> %v to <vscale x 2 x i64>
17  %2 = call <vscale x 2 x i1> @llvm.aarch64.sve.convert.from.svbool.nxv2i1(<vscale x 16 x i1> %0)
18  %3 = trunc <vscale x 2 x i64> %1 to <vscale x 2 x i32>
19  call void @llvm.aarch64.sve.st1.nxv2i32(<vscale x 2 x i32> %3, <vscale x 2 x i1> %2, ptr %ptr)
20  ret void
21}
22
23declare void @llvm.aarch64.sve.st1.nxv2i32(<vscale x 2 x i32>, <vscale x 2 x i1>, ptr)
24declare <vscale x 2 x i1> @llvm.aarch64.sve.convert.from.svbool.nxv2i1(<vscale x 16 x i1>)
25declare <vscale x 16 x i1> @llvm.aarch64.sve.ptrue.nxv16i1(i32 %pattern)
26