| ; RUN: opt -arm-parallel-dsp -dce -mtriple=armv7-a -S %s -o - | FileCheck %s |
| |
| ; CHECK-LABEL: single_block |
| ; CHECK: [[CAST_A:%[^ ]+]] = bitcast i16* %a to i32* |
| ; CHECK: [[A:%[^ ]+]] = load i32, i32* [[CAST_A]] |
| ; CHECK: [[CAST_B:%[^ ]+]] = bitcast i16* %b to i32* |
| ; CHECK: [[B:%[^ ]+]] = load i32, i32* [[CAST_B]] |
| ; CHECK: call i32 @llvm.arm.smlad(i32 [[A]], i32 [[B]], i32 %acc) |
| define i32 @single_block(i16* %a, i16* %b, i32 %acc) { |
| entry: |
| %ld.a.0 = load i16, i16* %a |
| %sext.a.0 = sext i16 %ld.a.0 to i32 |
| %ld.b.0 = load i16, i16* %b |
| %sext.b.0 = sext i16 %ld.b.0 to i32 |
| %mul.0 = mul i32 %sext.a.0, %sext.b.0 |
| %addr.a.1 = getelementptr i16, i16* %a, i32 1 |
| %addr.b.1 = getelementptr i16, i16* %b, i32 1 |
| %ld.a.1 = load i16, i16* %addr.a.1 |
| %sext.a.1 = sext i16 %ld.a.1 to i32 |
| %ld.b.1 = load i16, i16* %addr.b.1 |
| %sext.b.1 = sext i16 %ld.b.1 to i32 |
| %mul.1 = mul i32 %sext.a.1, %sext.b.1 |
| %add = add i32 %mul.0, %mul.1 |
| %res = add i32 %add, %acc |
| ret i32 %res |
| } |
| |
| ; CHECK-LABEL: single_block_64 |
| ; CHECK: [[CAST_A:%[^ ]+]] = bitcast i16* %a to i32* |
| ; CHECK: [[A:%[^ ]+]] = load i32, i32* [[CAST_A]] |
| ; CHECK: [[CAST_B:%[^ ]+]] = bitcast i16* %b to i32* |
| ; CHECK: [[B:%[^ ]+]] = load i32, i32* [[CAST_B]] |
| ; CHECK: call i64 @llvm.arm.smlald(i32 [[A]], i32 [[B]], i64 %acc) |
| define i64 @single_block_64(i16* %a, i16* %b, i64 %acc) { |
| entry: |
| %ld.a.0 = load i16, i16* %a |
| %sext.a.0 = sext i16 %ld.a.0 to i32 |
| %ld.b.0 = load i16, i16* %b |
| %sext.b.0 = sext i16 %ld.b.0 to i32 |
| %mul.0 = mul i32 %sext.a.0, %sext.b.0 |
| %addr.a.1 = getelementptr i16, i16* %a, i32 1 |
| %addr.b.1 = getelementptr i16, i16* %b, i32 1 |
| %ld.a.1 = load i16, i16* %addr.a.1 |
| %sext.a.1 = sext i16 %ld.a.1 to i32 |
| %ld.b.1 = load i16, i16* %addr.b.1 |
| %sext.b.1 = sext i16 %ld.b.1 to i32 |
| %mul.1 = mul i32 %sext.a.1, %sext.b.1 |
| %sext.mul.0 = sext i32 %mul.0 to i64 |
| %sext.mul.1 = sext i32 %mul.1 to i64 |
| %add = add i64 %sext.mul.0, %sext.mul.1 |
| %res = add i64 %add, %acc |
| ret i64 %res |
| } |
| |
| ; CHECK-LABEL: multi_block |
| ; CHECK: [[CAST_A:%[^ ]+]] = bitcast i16* %a to i32* |
| ; CHECK: [[A:%[^ ]+]] = load i32, i32* [[CAST_A]] |
| ; CHECK: [[CAST_B:%[^ ]+]] = bitcast i16* %b to i32* |
| ; CHECK: [[B:%[^ ]+]] = load i32, i32* [[CAST_B]] |
| ; CHECK: call i32 @llvm.arm.smlad(i32 [[A]], i32 [[B]], i32 0) |
| define i32 @multi_block(i16* %a, i16* %b, i32 %acc) { |
| entry: |
| %ld.a.0 = load i16, i16* %a |
| %sext.a.0 = sext i16 %ld.a.0 to i32 |
| %ld.b.0 = load i16, i16* %b |
| %sext.b.0 = sext i16 %ld.b.0 to i32 |
| %mul.0 = mul i32 %sext.a.0, %sext.b.0 |
| %addr.a.1 = getelementptr i16, i16* %a, i32 1 |
| %addr.b.1 = getelementptr i16, i16* %b, i32 1 |
| %ld.a.1 = load i16, i16* %addr.a.1 |
| %sext.a.1 = sext i16 %ld.a.1 to i32 |
| %ld.b.1 = load i16, i16* %addr.b.1 |
| %sext.b.1 = sext i16 %ld.b.1 to i32 |
| %mul.1 = mul i32 %sext.a.1, %sext.b.1 |
| %add = add i32 %mul.0, %mul.1 |
| br label %bb.1 |
| |
| bb.1: |
| %res = add i32 %add, %acc |
| ret i32 %res |
| } |
| |
| ; CHECK-LABEL: multi_block_64 |
| ; CHECK: [[CAST_A:%[^ ]+]] = bitcast i16* %a to i32* |
| ; CHECK: [[A:%[^ ]+]] = load i32, i32* [[CAST_A]] |
| ; CHECK: [[CAST_B:%[^ ]+]] = bitcast i16* %b to i32* |
| ; CHECK: [[B:%[^ ]+]] = load i32, i32* [[CAST_B]] |
| ; CHECK: call i64 @llvm.arm.smlald(i32 [[A]], i32 [[B]], i64 0) |
| define i64 @multi_block_64(i16* %a, i16* %b, i64 %acc) { |
| entry: |
| %ld.a.0 = load i16, i16* %a |
| %sext.a.0 = sext i16 %ld.a.0 to i32 |
| %ld.b.0 = load i16, i16* %b |
| %sext.b.0 = sext i16 %ld.b.0 to i32 |
| %mul.0 = mul i32 %sext.a.0, %sext.b.0 |
| %addr.a.1 = getelementptr i16, i16* %a, i32 1 |
| %addr.b.1 = getelementptr i16, i16* %b, i32 1 |
| %ld.a.1 = load i16, i16* %addr.a.1 |
| %sext.a.1 = sext i16 %ld.a.1 to i32 |
| %ld.b.1 = load i16, i16* %addr.b.1 |
| %sext.b.1 = sext i16 %ld.b.1 to i32 |
| %mul.1 = mul i32 %sext.a.1, %sext.b.1 |
| %sext.mul.0 = sext i32 %mul.0 to i64 |
| %sext.mul.1 = sext i32 %mul.1 to i64 |
| %add = add i64 %sext.mul.0, %sext.mul.1 |
| br label %bb.1 |
| |
| bb.1: |
| %res = add i64 %add, %acc |
| ret i64 %res |
| } |
| |
| ; CHECK-LABEL: multi_block_1 |
| ; CHECK-NOT: call i32 @llvm.arm.smlad |
| define i32 @multi_block_1(i16* %a, i16* %b, i32 %acc) { |
| entry: |
| %ld.a.0 = load i16, i16* %a |
| %sext.a.0 = sext i16 %ld.a.0 to i32 |
| %ld.b.0 = load i16, i16* %b |
| %sext.b.0 = sext i16 %ld.b.0 to i32 |
| %mul.0 = mul i32 %sext.a.0, %sext.b.0 |
| br label %bb.1 |
| |
| bb.1: |
| %addr.a.1 = getelementptr i16, i16* %a, i32 1 |
| %addr.b.1 = getelementptr i16, i16* %b, i32 1 |
| %ld.a.1 = load i16, i16* %addr.a.1 |
| %sext.a.1 = sext i16 %ld.a.1 to i32 |
| %ld.b.1 = load i16, i16* %addr.b.1 |
| %sext.b.1 = sext i16 %ld.b.1 to i32 |
| %mul.1 = mul i32 %sext.a.1, %sext.b.1 |
| %add = add i32 %mul.0, %mul.1 |
| %res = add i32 %add, %acc |
| ret i32 %res |
| } |
| |
| ; TODO: Four smlads should be generated here, but mul.0 and mul.3 remain as |
| ; scalars. |
| ; CHECK-LABEL: num_load_limit |
| ; CHECK: call i32 @llvm.arm.smlad |
| ; CHECK: call i32 @llvm.arm.smlad |
| ; CHECK: call i32 @llvm.arm.smlad |
| ; CHECK-NOT: call i32 @llvm.arm.smlad |
| define i32 @num_load_limit(i16* %a, i16* %b, i32 %acc) { |
| entry: |
| %ld.a.0 = load i16, i16* %a |
| %sext.a.0 = sext i16 %ld.a.0 to i32 |
| %ld.b.0 = load i16, i16* %b |
| %sext.b.0 = sext i16 %ld.b.0 to i32 |
| %mul.0 = mul i32 %sext.a.0, %sext.b.0 |
| %addr.a.1 = getelementptr i16, i16* %a, i32 1 |
| %addr.b.1 = getelementptr i16, i16* %b, i32 1 |
| %ld.a.1 = load i16, i16* %addr.a.1 |
| %sext.a.1 = sext i16 %ld.a.1 to i32 |
| %ld.b.1 = load i16, i16* %addr.b.1 |
| %sext.b.1 = sext i16 %ld.b.1 to i32 |
| %mul.1 = mul i32 %sext.a.1, %sext.b.1 |
| %add.0 = add i32 %mul.0, %mul.1 |
| |
| %addr.a.2 = getelementptr i16, i16* %a, i32 2 |
| %addr.b.2 = getelementptr i16, i16* %b, i32 2 |
| %ld.a.2 = load i16, i16* %addr.a.2 |
| %sext.a.2 = sext i16 %ld.a.2 to i32 |
| %ld.b.2 = load i16, i16* %addr.b.2 |
| %sext.b.2 = sext i16 %ld.b.2 to i32 |
| %mul.2 = mul i32 %sext.a.0, %sext.b.0 |
| %addr.a.3 = getelementptr i16, i16* %a, i32 3 |
| %addr.b.3 = getelementptr i16, i16* %b, i32 3 |
| %ld.a.3 = load i16, i16* %addr.a.3 |
| %sext.a.3 = sext i16 %ld.a.3 to i32 |
| %ld.b.3 = load i16, i16* %addr.b.3 |
| %sext.b.3 = sext i16 %ld.b.3 to i32 |
| %mul.3 = mul i32 %sext.a.1, %sext.b.3 |
| %add.3 = add i32 %mul.2, %mul.3 |
| |
| %addr.a.4 = getelementptr i16, i16* %a, i32 4 |
| %addr.b.4 = getelementptr i16, i16* %b, i32 4 |
| %ld.a.4 = load i16, i16* %addr.a.4 |
| %sext.a.4 = sext i16 %ld.a.4 to i32 |
| %ld.b.4 = load i16, i16* %addr.b.4 |
| %sext.b.4 = sext i16 %ld.b.4 to i32 |
| %mul.4 = mul i32 %sext.a.4, %sext.b.4 |
| %addr.a.5 = getelementptr i16, i16* %a, i32 5 |
| %addr.b.5 = getelementptr i16, i16* %b, i32 5 |
| %ld.a.5 = load i16, i16* %addr.a.5 |
| %sext.a.5 = sext i16 %ld.a.5 to i32 |
| %ld.b.5 = load i16, i16* %addr.b.5 |
| %sext.b.5 = sext i16 %ld.b.5 to i32 |
| %mul.5 = mul i32 %sext.a.5, %sext.b.5 |
| %add.5 = add i32 %mul.4, %mul.5 |
| |
| %addr.a.6 = getelementptr i16, i16* %a, i32 6 |
| %addr.b.6 = getelementptr i16, i16* %b, i32 6 |
| %ld.a.6 = load i16, i16* %addr.a.6 |
| %sext.a.6 = sext i16 %ld.a.6 to i32 |
| %ld.b.6 = load i16, i16* %addr.b.6 |
| %sext.b.6 = sext i16 %ld.b.6 to i32 |
| %mul.6 = mul i32 %sext.a.6, %sext.b.6 |
| %addr.a.7 = getelementptr i16, i16* %a, i32 7 |
| %addr.b.7 = getelementptr i16, i16* %b, i32 7 |
| %ld.a.7 = load i16, i16* %addr.a.7 |
| %sext.a.7 = sext i16 %ld.a.7 to i32 |
| %ld.b.7 = load i16, i16* %addr.b.7 |
| %sext.b.7 = sext i16 %ld.b.7 to i32 |
| %mul.7 = mul i32 %sext.a.7, %sext.b.7 |
| %add.7 = add i32 %mul.6, %mul.7 |
| |
| %add.10 = add i32 %add.7, %add.5 |
| %add.11 = add i32 %add.3, %add.0 |
| %add.12 = add i32 %add.10, %add.11 |
| %res = add i32 %add.12, %acc |
| ret i32 %res |
| } |
| |
| ; CHECK-LABEL: too_many_loads |
| ; CHECK-NOT: call i32 @llvm.arm.smlad |
| define i32 @too_many_loads(i16* %a, i16* %b, i32 %acc) { |
| entry: |
| %ld.a.0 = load i16, i16* %a |
| %sext.a.0 = sext i16 %ld.a.0 to i32 |
| %ld.b.0 = load i16, i16* %b |
| %sext.b.0 = sext i16 %ld.b.0 to i32 |
| %mul.0 = mul i32 %sext.a.0, %sext.b.0 |
| %addr.a.1 = getelementptr i16, i16* %a, i32 1 |
| %addr.b.1 = getelementptr i16, i16* %b, i32 1 |
| %ld.a.1 = load i16, i16* %addr.a.1 |
| %sext.a.1 = sext i16 %ld.a.1 to i32 |
| %ld.b.1 = load i16, i16* %addr.b.1 |
| %sext.b.1 = sext i16 %ld.b.1 to i32 |
| %mul.1 = mul i32 %sext.a.1, %sext.b.1 |
| %add.0 = add i32 %mul.0, %mul.1 |
| |
| %addr.a.2 = getelementptr i16, i16* %a, i32 2 |
| %addr.b.2 = getelementptr i16, i16* %b, i32 2 |
| %ld.a.2 = load i16, i16* %addr.a.2 |
| %sext.a.2 = sext i16 %ld.a.2 to i32 |
| %ld.b.2 = load i16, i16* %addr.b.2 |
| %sext.b.2 = sext i16 %ld.b.2 to i32 |
| %mul.2 = mul i32 %sext.a.0, %sext.b.0 |
| %addr.a.3 = getelementptr i16, i16* %a, i32 3 |
| %addr.b.3 = getelementptr i16, i16* %b, i32 3 |
| %ld.a.3 = load i16, i16* %addr.a.3 |
| %sext.a.3 = sext i16 %ld.a.3 to i32 |
| %ld.b.3 = load i16, i16* %addr.b.3 |
| %sext.b.3 = sext i16 %ld.b.3 to i32 |
| %mul.3 = mul i32 %sext.a.1, %sext.b.3 |
| %add.3 = add i32 %mul.2, %mul.3 |
| |
| %addr.a.4 = getelementptr i16, i16* %a, i32 4 |
| %addr.b.4 = getelementptr i16, i16* %b, i32 4 |
| %ld.a.4 = load i16, i16* %addr.a.4 |
| %sext.a.4 = sext i16 %ld.a.4 to i32 |
| %ld.b.4 = load i16, i16* %addr.b.4 |
| %sext.b.4 = sext i16 %ld.b.4 to i32 |
| %mul.4 = mul i32 %sext.a.4, %sext.b.4 |
| %addr.a.5 = getelementptr i16, i16* %a, i32 5 |
| %addr.b.5 = getelementptr i16, i16* %b, i32 5 |
| %ld.a.5 = load i16, i16* %addr.a.5 |
| %sext.a.5 = sext i16 %ld.a.5 to i32 |
| %ld.b.5 = load i16, i16* %addr.b.5 |
| %sext.b.5 = sext i16 %ld.b.5 to i32 |
| %mul.5 = mul i32 %sext.a.5, %sext.b.5 |
| %add.5 = add i32 %mul.4, %mul.5 |
| |
| %addr.a.6 = getelementptr i16, i16* %a, i32 6 |
| %addr.b.6 = getelementptr i16, i16* %b, i32 6 |
| %ld.a.6 = load i16, i16* %addr.a.6 |
| %sext.a.6 = sext i16 %ld.a.6 to i32 |
| %ld.b.6 = load i16, i16* %addr.b.6 |
| %sext.b.6 = sext i16 %ld.b.6 to i32 |
| %mul.6 = mul i32 %sext.a.6, %sext.b.6 |
| %addr.a.7 = getelementptr i16, i16* %a, i32 7 |
| %addr.b.7 = getelementptr i16, i16* %b, i32 7 |
| %ld.a.7 = load i16, i16* %addr.a.7 |
| %sext.a.7 = sext i16 %ld.a.7 to i32 |
| %ld.b.7 = load i16, i16* %addr.b.7 |
| %sext.b.7 = sext i16 %ld.b.7 to i32 |
| %mul.7 = mul i32 %sext.a.7, %sext.b.7 |
| %add.7 = add i32 %mul.6, %mul.7 |
| |
| %addr.a.8 = getelementptr i16, i16* %a, i32 7 |
| %addr.b.8 = getelementptr i16, i16* %b, i32 7 |
| %ld.a.8 = load i16, i16* %addr.a.8 |
| %sext.a.8 = sext i16 %ld.a.8 to i32 |
| %ld.b.8 = load i16, i16* %addr.b.8 |
| %sext.b.8 = sext i16 %ld.b.8 to i32 |
| %mul.8 = mul i32 %sext.a.8, %sext.b.8 |
| |
| %add.10 = add i32 %add.7, %add.5 |
| %add.11 = add i32 %add.3, %add.0 |
| %add.12 = add i32 %add.10, %add.11 |
| %add.13 = add i32 %add.12, %acc |
| %res = add i32 %add.13, %mul.8 |
| ret i32 %res |
| } |