| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -S -instcombine < %s | FileCheck %s |
| |
| ; This test is used to verify we are not crashing at Assertion `CastInst::castIsValid(opc, C, Ty) && "Invalid constantexpr cast!". |
| define <vscale x 2 x i8*> @gep_index_type_is_scalable(i8* %p) { |
| ; CHECK-LABEL: @gep_index_type_is_scalable( |
| ; CHECK-NEXT: [[GEP:%.*]] = getelementptr i8, i8* [[P:%.*]], <vscale x 2 x i64> undef |
| ; CHECK-NEXT: ret <vscale x 2 x i8*> [[GEP]] |
| ; |
| %gep = getelementptr i8, i8* %p, <vscale x 2 x i64> undef |
| ret <vscale x 2 x i8*> %gep |
| } |
| |
| ; This test serves to verify code changes for "GEP.getNumIndices() == 1". |
| define <vscale x 4 x i32>* @gep_num_of_indices_1(<vscale x 4 x i32>* %p) { |
| ; CHECK-LABEL: @gep_num_of_indices_1( |
| ; CHECK-NEXT: [[GEP:%.*]] = getelementptr <vscale x 4 x i32>, <vscale x 4 x i32>* [[P:%.*]], i64 1 |
| ; CHECK-NEXT: ret <vscale x 4 x i32>* [[GEP]] |
| ; |
| %gep = getelementptr <vscale x 4 x i32>, <vscale x 4 x i32>* %p, i64 1 |
| ret <vscale x 4 x i32>* %gep |
| } |
| |
| ; This test serves to verify code changes for "GEP.getNumOperands() == 2". |
| define void @gep_bitcast(i8* %p) { |
| ; CHECK-LABEL: @gep_bitcast( |
| ; CHECK-NEXT: [[CAST:%.*]] = bitcast i8* [[P:%.*]] to <vscale x 16 x i8>* |
| ; CHECK-NEXT: store <vscale x 16 x i8> zeroinitializer, <vscale x 16 x i8>* [[CAST]], align 16 |
| ; CHECK-NEXT: [[GEP2:%.*]] = getelementptr <vscale x 16 x i8>, <vscale x 16 x i8>* [[CAST]], i64 1 |
| ; CHECK-NEXT: store <vscale x 16 x i8> zeroinitializer, <vscale x 16 x i8>* [[GEP2]], align 16 |
| ; CHECK-NEXT: ret void |
| ; |
| %cast = bitcast i8* %p to <vscale x 16 x i8>* |
| %gep1 = getelementptr <vscale x 16 x i8>, <vscale x 16 x i8>* %cast, i64 0 |
| store <vscale x 16 x i8> zeroinitializer, <vscale x 16 x i8>* %gep1 |
| %gep2 = getelementptr <vscale x 16 x i8>, <vscale x 16 x i8>* %cast, i64 1 |
| store <vscale x 16 x i8> zeroinitializer, <vscale x 16 x i8>* %gep2 |
| ret void |
| } |
| |
| ; These tests serve to verify code changes when underlying gep ptr is alloca. |
| ; This test is to verify 'inbounds' is added when it's valid to accumulate constant offset. |
| define i32 @gep_alloca_inbounds_vscale_zero() { |
| ; CHECK-LABEL: @gep_alloca_inbounds_vscale_zero( |
| ; CHECK-NEXT: [[A:%.*]] = alloca <vscale x 4 x i32>, align 16 |
| ; CHECK-NEXT: [[TMP:%.*]] = getelementptr inbounds <vscale x 4 x i32>, <vscale x 4 x i32>* [[A]], i64 0, i64 2 |
| ; CHECK-NEXT: [[LOAD:%.*]] = load i32, i32* [[TMP]], align 8 |
| ; CHECK-NEXT: ret i32 [[LOAD]] |
| ; |
| %a = alloca <vscale x 4 x i32> |
| %tmp = getelementptr <vscale x 4 x i32>, <vscale x 4 x i32>* %a, i32 0, i32 2 |
| %load = load i32, i32* %tmp |
| ret i32 %load |
| } |
| |
| ; This test is to verify 'inbounds' is not added when a constant offset can not be determined at compile-time. |
| define i32 @gep_alloca_inbounds_vscale_nonzero() { |
| ; CHECK-LABEL: @gep_alloca_inbounds_vscale_nonzero( |
| ; CHECK-NEXT: [[A:%.*]] = alloca <vscale x 4 x i32>, align 16 |
| ; CHECK-NEXT: [[TMP:%.*]] = getelementptr <vscale x 4 x i32>, <vscale x 4 x i32>* [[A]], i64 1, i64 2 |
| ; CHECK-NEXT: [[LOAD:%.*]] = load i32, i32* [[TMP]], align 8 |
| ; CHECK-NEXT: ret i32 [[LOAD]] |
| ; |
| %a = alloca <vscale x 4 x i32> |
| %tmp = getelementptr <vscale x 4 x i32>, <vscale x 4 x i32>* %a, i32 1, i32 2 |
| %load = load i32, i32* %tmp |
| ret i32 %load |
| } |