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llvm-project/llvm/test/CodeGen/ARM/ParallelDSP/exchange.ll

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; RUN: opt -arm-parallel-dsp -mtriple=armv7-a -S %s -o - | FileCheck %s
; CHECK-LABEL: exchange_1
; CHECK: [[CAST_A:%[^ ]+]] = bitcast i16* %a to i32*
; CHECK: [[LD_A:%[^ ]+]] = load i32, i32* [[CAST_A]]
; CHECK: [[CAST_B:%[^ ]+]] = bitcast i16* %b to i32*
; CHECK: [[LD_B:%[^ ]+]] = load i32, i32* [[CAST_B]]
; CHECK: call i32 @llvm.arm.smladx(i32 [[LD_A]], i32 [[LD_B]]
define i32 @exchange_1(i16* %a, i16* %b, i32 %acc) {
entry:
%addr.a.1 = getelementptr i16, i16* %a, i32 1
%addr.b.1 = getelementptr i16, i16* %b, i32 1
%ld.a.0 = load i16, i16* %a
%sext.a.0 = sext i16 %ld.a.0 to i32
%ld.b.0 = load i16, i16* %b
%ld.a.1 = load i16, i16* %addr.a.1
%ld.b.1 = load i16, i16* %addr.b.1
%sext.a.1 = sext i16 %ld.a.1 to i32
%sext.b.1 = sext i16 %ld.b.1 to i32
%sext.b.0 = sext i16 %ld.b.0 to i32
%mul.0 = mul i32 %sext.a.0, %sext.b.1
%mul.1 = mul i32 %sext.a.1, %sext.b.0
%add = add i32 %mul.0, %mul.1
%res = add i32 %add, %acc
ret i32 %res
}
; CHECK-LABEL: exchange_2
; CHECK: [[CAST_A:%[^ ]+]] = bitcast i16* %a to i32*
; CHECK: [[LD_A:%[^ ]+]] = load i32, i32* [[CAST_A]]
; CHECK: [[CAST_B:%[^ ]+]] = bitcast i16* %b to i32*
; CHECK: [[LD_B:%[^ ]+]] = load i32, i32* [[CAST_B]]
; CHECK: call i32 @llvm.arm.smladx(i32 [[LD_A]], i32 [[LD_B]]
define i32 @exchange_2(i16* %a, i16* %b, i32 %acc) {
entry:
%addr.a.1 = getelementptr i16, i16* %a, i32 1
%addr.b.1 = getelementptr i16, i16* %b, i32 1
%ld.a.0 = load i16, i16* %a
%sext.a.0 = sext i16 %ld.a.0 to i32
%ld.b.0 = load i16, i16* %b
%ld.a.1 = load i16, i16* %addr.a.1
%ld.b.1 = load i16, i16* %addr.b.1
%sext.a.1 = sext i16 %ld.a.1 to i32
%sext.b.1 = sext i16 %ld.b.1 to i32
%sext.b.0 = sext i16 %ld.b.0 to i32
%mul.0 = mul i32 %sext.b.1, %sext.a.0
%mul.1 = mul i32 %sext.b.0, %sext.a.1
%add = add i32 %mul.0, %mul.1
%res = add i32 %add, %acc
ret i32 %res
}
; CHECK-LABEL: exchange_3
; CHECK: [[CAST_A:%[^ ]+]] = bitcast i16* %a to i32*
; CHECK: [[LD_A:%[^ ]+]] = load i32, i32* [[CAST_A]]
; CHECK: [[CAST_B:%[^ ]+]] = bitcast i16* %b to i32*
; CHECK: [[LD_B:%[^ ]+]] = load i32, i32* [[CAST_B]]
; CHECK: call i32 @llvm.arm.smladx(i32 [[LD_B]], i32 [[LD_A]]
define i32 @exchange_3(i16* %a, i16* %b, i32 %acc) {
entry:
%addr.a.1 = getelementptr i16, i16* %a, i32 1
%addr.b.1 = getelementptr i16, i16* %b, i32 1
%ld.a.0 = load i16, i16* %a
%sext.a.0 = sext i16 %ld.a.0 to i32
%ld.b.0 = load i16, i16* %b
%ld.a.1 = load i16, i16* %addr.a.1
%ld.b.1 = load i16, i16* %addr.b.1
%sext.a.1 = sext i16 %ld.a.1 to i32
%sext.b.1 = sext i16 %ld.b.1 to i32
%sext.b.0 = sext i16 %ld.b.0 to i32
%mul.0 = mul i32 %sext.a.0, %sext.b.1
%mul.1 = mul i32 %sext.a.1, %sext.b.0
%add = add i32 %mul.1, %mul.0
%res = add i32 %add, %acc
ret i32 %res
}
; CHECK-LABEL: exchange_4
; CHECK: [[CAST_A:%[^ ]+]] = bitcast i16* %a to i32*
; CHECK: [[LD_A:%[^ ]+]] = load i32, i32* [[CAST_A]]
; CHECK: [[CAST_B:%[^ ]+]] = bitcast i16* %b to i32*
; CHECK: [[LD_B:%[^ ]+]] = load i32, i32* [[CAST_B]]
; CHECK: call i32 @llvm.arm.smladx(i32 [[LD_B]], i32 [[LD_A]]
define i32 @exchange_4(i16* %a, i16* %b, i32 %acc) {
entry:
%addr.a.1 = getelementptr i16, i16* %a, i32 1
%addr.b.1 = getelementptr i16, i16* %b, i32 1
%ld.a.0 = load i16, i16* %a
%sext.a.0 = sext i16 %ld.a.0 to i32
%ld.b.0 = load i16, i16* %b
%ld.a.1 = load i16, i16* %addr.a.1
%ld.b.1 = load i16, i16* %addr.b.1
%sext.a.1 = sext i16 %ld.a.1 to i32
%sext.b.1 = sext i16 %ld.b.1 to i32
%sext.b.0 = sext i16 %ld.b.0 to i32
%mul.0 = mul i32 %sext.b.1, %sext.a.0
%mul.1 = mul i32 %sext.b.0, %sext.a.1
%add = add i32 %mul.1, %mul.0
%res = add i32 %add, %acc
ret i32 %res
}
; CHECK-LABEL: exchange_multi_use_1
; CHECK: [[CAST_A:%[^ ]+]] = bitcast i16* %a to i32*
; CHECK: [[LD_A:%[^ ]+]] = load i32, i32* [[CAST_A]]
; CHECK: [[CAST_B:%[^ ]+]] = bitcast i16* %b to i32*
; CHECK: [[LD_B:%[^ ]+]] = load i32, i32* [[CAST_B]]
; CHECK: [[X:%[^ ]+]] = call i32 @llvm.arm.smladx(i32 [[LD_A]], i32 [[LD_B]], i32 %acc
; CHECK: [[GEP:%[^ ]+]] = getelementptr i16, i16* %a, i32 2
; CHECK: [[CAST_A_2:%[^ ]+]] = bitcast i16* [[GEP]] to i32*
; CHECK: [[LD_A_2:%[^ ]+]] = load i32, i32* [[CAST_A_2]]
; CHECK: call i32 @llvm.arm.smlad(i32 [[LD_A_2]], i32 [[LD_B]], i32 [[X]])
define i32 @exchange_multi_use_1(i16* %a, i16* %b, i32 %acc) {
entry:
%addr.a.1 = getelementptr i16, i16* %a, i32 1
%addr.b.1 = getelementptr i16, i16* %b, i32 1
%ld.a.0 = load i16, i16* %a
%sext.a.0 = sext i16 %ld.a.0 to i32
%ld.b.0 = load i16, i16* %b
%ld.a.1 = load i16, i16* %addr.a.1
%ld.b.1 = load i16, i16* %addr.b.1
%sext.a.1 = sext i16 %ld.a.1 to i32
%sext.b.1 = sext i16 %ld.b.1 to i32
%sext.b.0 = sext i16 %ld.b.0 to i32
%mul.0 = mul i32 %sext.a.0, %sext.b.1
%mul.1 = mul i32 %sext.a.1, %sext.b.0
%add = add i32 %mul.0, %mul.1
%addr.a.2 = getelementptr i16, i16* %a, i32 2
%addr.a.3 = getelementptr i16, i16* %a, i32 3
%ld.a.2 = load i16, i16* %addr.a.2
%ld.a.3 = load i16, i16* %addr.a.3
%sext.a.2 = sext i16 %ld.a.2 to i32
%sext.a.3 = sext i16 %ld.a.3 to i32
%mul.2 = mul i32 %sext.a.3, %sext.b.1
%mul.3 = mul i32 %sext.a.2, %sext.b.0
%add.1 = add i32 %mul.2, %mul.3
%add.2 = add i32 %add, %add.1
%res = add i32 %add.2, %acc
ret i32 %res
}
; CHECK-LABEL: exchange_multi_use_64_1
; CHECK: [[CAST_A:%[^ ]+]] = bitcast i16* %a to i32*
; CHECK: [[LD_A:%[^ ]+]] = load i32, i32* [[CAST_A]]
; CHECK: [[CAST_B:%[^ ]+]] = bitcast i16* %b to i32*
; CHECK: [[LD_B:%[^ ]+]] = load i32, i32* [[CAST_B]]
; CHECK: [[X:%[^ ]+]] = call i64 @llvm.arm.smlaldx(i32 [[LD_A]], i32 [[LD_B]], i64 %acc
; CHECK: [[GEP:%[^ ]+]] = getelementptr i16, i16* %a, i32 2
; CHECK: [[CAST_A_2:%[^ ]+]] = bitcast i16* [[GEP]] to i32*
; CHECK: [[LD_A_2:%[^ ]+]] = load i32, i32* [[CAST_A_2]]
; CHECK: call i64 @llvm.arm.smlald(i32 [[LD_A_2]], i32 [[LD_B]], i64 [[X]])
define i64 @exchange_multi_use_64_1(i16* %a, i16* %b, i64 %acc) {
entry:
%addr.a.1 = getelementptr i16, i16* %a, i32 1
%addr.b.1 = getelementptr i16, i16* %b, i32 1
%ld.a.0 = load i16, i16* %a
%sext.a.0 = sext i16 %ld.a.0 to i32
%ld.b.0 = load i16, i16* %b
%ld.a.1 = load i16, i16* %addr.a.1
%ld.b.1 = load i16, i16* %addr.b.1
%sext.a.1 = sext i16 %ld.a.1 to i32
%sext.b.1 = sext i16 %ld.b.1 to i32
%sext.b.0 = sext i16 %ld.b.0 to i32
%mul.0 = mul i32 %sext.a.0, %sext.b.1
%mul.1 = mul i32 %sext.a.1, %sext.b.0
%add = add i32 %mul.0, %mul.1
%addr.a.2 = getelementptr i16, i16* %a, i32 2
%addr.a.3 = getelementptr i16, i16* %a, i32 3
%ld.a.2 = load i16, i16* %addr.a.2
%ld.a.3 = load i16, i16* %addr.a.3
%sext.a.2 = sext i16 %ld.a.2 to i32
%sext.a.3 = sext i16 %ld.a.3 to i32
%mul.2 = mul i32 %sext.a.3, %sext.b.1
%mul.3 = mul i32 %sext.a.2, %sext.b.0
%add.1 = add i32 %mul.2, %mul.3
%add.2 = add i32 %add, %add.1
%sext.add.2 = sext i32 %add.2 to i64
%res = add i64 %sext.add.2, %acc
ret i64 %res
}
; CHECK-LABEL: exchange_multi_use_64_2
; CHECK: [[CAST_A:%[^ ]+]] = bitcast i16* %a to i32*
; CHECK: [[LD_A:%[^ ]+]] = load i32, i32* [[CAST_A]]
; CHECK: [[CAST_B:%[^ ]+]] = bitcast i16* %b to i32*
; CHECK: [[LD_B:%[^ ]+]] = load i32, i32* [[CAST_B]]
; CHECK: [[X:%[^ ]+]] = call i64 @llvm.arm.smlaldx(i32 [[LD_A]], i32 [[LD_B]], i64 %acc
; CHECK: [[GEP:%[^ ]+]] = getelementptr i16, i16* %a, i32 2
; CHECK: [[CAST_A_2:%[^ ]+]] = bitcast i16* [[GEP]] to i32*
; CHECK: [[LD_A_2:%[^ ]+]] = load i32, i32* [[CAST_A_2]]
; CHECK: call i64 @llvm.arm.smlald(i32 [[LD_A_2]], i32 [[LD_B]], i64 [[X]])
define i64 @exchange_multi_use_64_2(i16* %a, i16* %b, i64 %acc) {
entry:
%addr.a.1 = getelementptr i16, i16* %a, i32 1
%addr.b.1 = getelementptr i16, i16* %b, i32 1
%ld.a.0 = load i16, i16* %a
%sext.a.0 = sext i16 %ld.a.0 to i32
%ld.b.0 = load i16, i16* %b
%ld.a.1 = load i16, i16* %addr.a.1
%ld.b.1 = load i16, i16* %addr.b.1
%sext.a.1 = sext i16 %ld.a.1 to i32
%sext.b.1 = sext i16 %ld.b.1 to i32
%sext.b.0 = sext i16 %ld.b.0 to i32
%mul.0 = mul i32 %sext.a.0, %sext.b.1
%mul.1 = mul i32 %sext.a.1, %sext.b.0
%add = add i32 %mul.0, %mul.1
%sext.add = sext i32 %add to i64
%addr.a.2 = getelementptr i16, i16* %a, i32 2
%addr.a.3 = getelementptr i16, i16* %a, i32 3
%ld.a.2 = load i16, i16* %addr.a.2
%ld.a.3 = load i16, i16* %addr.a.3
%sext.a.2 = sext i16 %ld.a.2 to i32
%sext.a.3 = sext i16 %ld.a.3 to i32
%mul.2 = mul i32 %sext.a.3, %sext.b.1
%mul.3 = mul i32 %sext.a.2, %sext.b.0
%add.1 = add i32 %mul.2, %mul.3
%sext.add.1 = sext i32 %add.1 to i64
%add.2 = add i64 %sext.add, %sext.add.1
%res = add i64 %add.2, %acc
ret i64 %res
}
; CHECK-LABEL: exchange_multi_use_2
; CHECK: [[CAST_A:%[^ ]+]] = bitcast i16* %a to i32*
; CHECK: [[LD_A:%[^ ]+]] = load i32, i32* [[CAST_A]]
; CHECK: [[CAST_B:%[^ ]+]] = bitcast i16* %b to i32*
; CHECK: [[LD_B:%[^ ]+]] = load i32, i32* [[CAST_B]]
; CHECK: [[X:%[^ ]+]] = call i32 @llvm.arm.smlad(i32 [[LD_A]], i32 [[LD_B]], i32 %acc
; CHECK: [[GEP:%[^ ]+]] = getelementptr i16, i16* %a, i32 2
; CHECK: [[CAST_A_2:%[^ ]+]] = bitcast i16* [[GEP]] to i32*
; CHECK: [[LD_A_2:%[^ ]+]] = load i32, i32* [[CAST_A_2]]
; CHECK: call i32 @llvm.arm.smladx(i32 [[LD_B]], i32 [[LD_A_2]], i32 [[X]])
define i32 @exchange_multi_use_2(i16* %a, i16* %b, i32 %acc) {
entry:
%addr.a.1 = getelementptr i16, i16* %a, i32 1
%addr.b.1 = getelementptr i16, i16* %b, i32 1
%ld.a.0 = load i16, i16* %a
%sext.a.0 = sext i16 %ld.a.0 to i32
%ld.b.0 = load i16, i16* %b
%ld.a.1 = load i16, i16* %addr.a.1
%ld.b.1 = load i16, i16* %addr.b.1
%sext.a.1 = sext i16 %ld.a.1 to i32
%sext.b.1 = sext i16 %ld.b.1 to i32
%sext.b.0 = sext i16 %ld.b.0 to i32
%mul.0 = mul i32 %sext.a.0, %sext.b.0
%mul.1 = mul i32 %sext.a.1, %sext.b.1
%add = add i32 %mul.0, %mul.1
%addr.a.2 = getelementptr i16, i16* %a, i32 2
%addr.a.3 = getelementptr i16, i16* %a, i32 3
%ld.a.2 = load i16, i16* %addr.a.2
%ld.a.3 = load i16, i16* %addr.a.3
%sext.a.2 = sext i16 %ld.a.2 to i32
%sext.a.3 = sext i16 %ld.a.3 to i32
%mul.2 = mul i32 %sext.b.0, %sext.a.3
%mul.3 = mul i32 %sext.b.1, %sext.a.2
%add.1 = add i32 %mul.2, %mul.3
%add.2 = add i32 %add, %add.1
%res = add i32 %add.2, %acc
ret i32 %res
}
; TODO: Why aren't two intrinsics generated?
; CHECK-LABEL: exchange_multi_use_3
; CHECK: [[CAST_B:%[^ ]+]] = bitcast i16* %b to i32*
; CHECK: [[LD_B:%[^ ]+]] = load i32, i32* [[CAST_B]]
; CHECK: [[GEP:%[^ ]+]] = getelementptr i16, i16* %a, i32 2
; CHECK: [[CAST_A_2:%[^ ]+]] = bitcast i16* [[GEP]] to i32*
; CHECK: [[LD_A_2:%[^ ]+]] = load i32, i32* [[CAST_A_2]]
; CHECK-NOT: call i32 @llvm.arm.smlad
; CHECK: [[X:%[^ ]+]] = call i32 @llvm.arm.smladx(i32 [[LD_B]], i32 [[LD_A_2]], i32 0
define i32 @exchange_multi_use_3(i16* %a, i16* %b, i32 %acc) {
entry:
%addr.a.1 = getelementptr i16, i16* %a, i32 1
%addr.b.1 = getelementptr i16, i16* %b, i32 1
%ld.a.0 = load i16, i16* %a
%sext.a.0 = sext i16 %ld.a.0 to i32
%ld.b.0 = load i16, i16* %b
%ld.a.1 = load i16, i16* %addr.a.1
%ld.b.1 = load i16, i16* %addr.b.1
%sext.a.1 = sext i16 %ld.a.1 to i32
%sext.b.1 = sext i16 %ld.b.1 to i32
%sext.b.0 = sext i16 %ld.b.0 to i32
%addr.a.2 = getelementptr i16, i16* %a, i32 2
%addr.a.3 = getelementptr i16, i16* %a, i32 3
%ld.a.2 = load i16, i16* %addr.a.2
%ld.a.3 = load i16, i16* %addr.a.3
%sext.a.2 = sext i16 %ld.a.2 to i32
%sext.a.3 = sext i16 %ld.a.3 to i32
%mul.2 = mul i32 %sext.b.0, %sext.a.3
%mul.3 = mul i32 %sext.b.1, %sext.a.2
%mul.0 = mul i32 %sext.a.0, %sext.b.0
%mul.1 = mul i32 %sext.a.1, %sext.b.1
%add = add i32 %mul.0, %mul.1
%add.1 = add i32 %mul.2, %mul.3
%sub = sub i32 %add, %add.1
%res = add i32 %acc, %sub
ret i32 %res
}
; TODO: Would it be better to generate a smlad and then sign extend it?
; CHECK-LABEL: exchange_multi_use_64_3
; CHECK: [[CAST_A:%[^ ]+]] = bitcast i16* %a to i32*
; CHECK: [[LD_A:%[^ ]+]] = load i32, i32* [[CAST_A]]
; CHECK: [[CAST_B:%[^ ]+]] = bitcast i16* %b to i32*
; CHECK: [[LD_B:%[^ ]+]] = load i32, i32* [[CAST_B]]
; CHECK: [[GEP:%[^ ]+]] = getelementptr i16, i16* %a, i32 2
; CHECK: [[CAST_A_2:%[^ ]+]] = bitcast i16* [[GEP]] to i32*
; CHECK: [[LD_A_2:%[^ ]+]] = load i32, i32* [[CAST_A_2]]
; CHECK: [[ACC:%[^ ]+]] = call i64 @llvm.arm.smlaldx(i32 [[LD_B]], i32 [[LD_A_2]], i64 0)
; CHECK: [[X:%[^ ]+]] = call i64 @llvm.arm.smlald(i32 [[LD_A]], i32 [[LD_B]], i64 [[ACC]])
define i64 @exchange_multi_use_64_3(i16* %a, i16* %b, i64 %acc) {
entry:
%addr.a.1 = getelementptr i16, i16* %a, i32 1
%addr.b.1 = getelementptr i16, i16* %b, i32 1
%ld.a.0 = load i16, i16* %a
%sext.a.0 = sext i16 %ld.a.0 to i32
%ld.b.0 = load i16, i16* %b
%ld.a.1 = load i16, i16* %addr.a.1
%ld.b.1 = load i16, i16* %addr.b.1
%sext.a.1 = sext i16 %ld.a.1 to i32
%sext.b.1 = sext i16 %ld.b.1 to i32
%sext.b.0 = sext i16 %ld.b.0 to i32
%addr.a.2 = getelementptr i16, i16* %a, i32 2
%addr.a.3 = getelementptr i16, i16* %a, i32 3
%ld.a.2 = load i16, i16* %addr.a.2
%ld.a.3 = load i16, i16* %addr.a.3
%sext.a.2 = sext i16 %ld.a.2 to i32
%sext.a.3 = sext i16 %ld.a.3 to i32
%mul.2 = mul i32 %sext.b.0, %sext.a.3
%mul.3 = mul i32 %sext.b.1, %sext.a.2
%mul.0 = mul i32 %sext.a.0, %sext.b.0
%mul.1 = mul i32 %sext.a.1, %sext.b.1
%add = add i32 %mul.0, %mul.1
%add.1 = add i32 %mul.2, %mul.3
%sext.add = sext i32 %add to i64
%sext.add.1 = sext i32 %add.1 to i64
%add.2 = add i64 %sext.add, %sext.add.1
%res = sub i64 %acc, %add.2
ret i64 %res
}
; TODO: Why isn't smladx generated too?
; CHECK-LABEL: exchange_multi_use_4
; CHECK: [[CAST_A:%[^ ]+]] = bitcast i16* %a to i32*
; CHECK: [[LD_A:%[^ ]+]] = load i32, i32* [[CAST_A]]
; CHECK: [[CAST_B:%[^ ]+]] = bitcast i16* %b to i32*
; CHECK: [[LD_B:%[^ ]+]] = load i32, i32* [[CAST_B]]
; CHECK: [[X:%[^ ]+]] = call i32 @llvm.arm.smlad(i32 [[LD_A]], i32 [[LD_B]], i32 0
; CHECK-NOT: call i32 @llvm.arm.smlad
define i32 @exchange_multi_use_4(i16* %a, i16* %b, i32 %acc) {
entry:
%addr.a.1 = getelementptr i16, i16* %a, i32 1
%addr.b.1 = getelementptr i16, i16* %b, i32 1
%ld.a.0 = load i16, i16* %a
%sext.a.0 = sext i16 %ld.a.0 to i32
%ld.b.0 = load i16, i16* %b
%ld.a.1 = load i16, i16* %addr.a.1
%ld.b.1 = load i16, i16* %addr.b.1
%sext.a.1 = sext i16 %ld.a.1 to i32
%sext.b.1 = sext i16 %ld.b.1 to i32
%sext.b.0 = sext i16 %ld.b.0 to i32
%addr.a.2 = getelementptr i16, i16* %a, i32 2
%addr.a.3 = getelementptr i16, i16* %a, i32 3
%ld.a.2 = load i16, i16* %addr.a.2
%ld.a.3 = load i16, i16* %addr.a.3
%sext.a.2 = sext i16 %ld.a.2 to i32
%sext.a.3 = sext i16 %ld.a.3 to i32
%mul.2 = mul i32 %sext.b.0, %sext.a.3
%mul.3 = mul i32 %sext.b.1, %sext.a.2
%mul.0 = mul i32 %sext.a.0, %sext.b.0
%mul.1 = mul i32 %sext.a.1, %sext.b.1
%add.1 = add i32 %mul.2, %mul.3
%add = add i32 %mul.0, %mul.1
%sub = sub i32 %add, %add.1
%res = add i32 %acc, %sub
ret i32 %res
}
; CHECK-LABEL: exchange_swap
; CHECK: [[CAST_A:%[^ ]+]] = bitcast i16* %a to i32*
; CHECK: [[LD_A:%[^ ]+]] = load i32, i32* [[CAST_A]]
; CHECK: [[CAST_B:%[^ ]+]] = bitcast i16* %b to i32*
; CHECK: [[LD_B:%[^ ]+]] = load i32, i32* [[CAST_B]]
; CHECK: call i32 @llvm.arm.smladx(i32 [[LD_B]], i32 [[LD_A]]
define i32 @exchange_swap(i16* %a, i16* %b, i32 %acc) {
entry:
%addr.a.1 = getelementptr i16, i16* %a, i32 1
%addr.b.1 = getelementptr i16, i16* %b, i32 1
%ld.a.0 = load i16, i16* %a
%sext.a.0 = sext i16 %ld.a.0 to i32
%ld.b.0 = load i16, i16* %b
%ld.a.1 = load i16, i16* %addr.a.1
%ld.b.1 = load i16, i16* %addr.b.1
%sext.a.1 = sext i16 %ld.a.1 to i32
%sext.b.1 = sext i16 %ld.b.1 to i32
%sext.b.0 = sext i16 %ld.b.0 to i32
%mul.0 = mul i32 %sext.a.1, %sext.b.0
%mul.1 = mul i32 %sext.a.0, %sext.b.1
%add = add i32 %mul.0, %mul.1
%res = add i32 %add, %acc
ret i32 %res
}
; CHECK-LABEL: exchange_swap_2
; CHECK: [[CAST_A:%[^ ]+]] = bitcast i16* %a to i32*
; CHECK: [[LD_A:%[^ ]+]] = load i32, i32* [[CAST_A]]
; CHECK: [[CAST_B:%[^ ]+]] = bitcast i16* %b to i32*
; CHECK: [[LD_B:%[^ ]+]] = load i32, i32* [[CAST_B]]
; CHECK: call i32 @llvm.arm.smladx(i32 [[LD_A]], i32 [[LD_B]]
define i32 @exchange_swap_2(i16* %a, i16* %b, i32 %acc) {
entry:
%addr.a.1 = getelementptr i16, i16* %a, i32 1
%addr.b.1 = getelementptr i16, i16* %b, i32 1
%ld.a.0 = load i16, i16* %a
%sext.a.0 = sext i16 %ld.a.0 to i32
%ld.b.0 = load i16, i16* %b
%ld.a.1 = load i16, i16* %addr.a.1
%ld.b.1 = load i16, i16* %addr.b.1
%sext.a.1 = sext i16 %ld.a.1 to i32
%sext.b.1 = sext i16 %ld.b.1 to i32
%sext.b.0 = sext i16 %ld.b.0 to i32
%mul.0 = mul i32 %sext.a.1, %sext.b.0
%mul.1 = mul i32 %sext.a.0, %sext.b.1
%add = add i32 %mul.1, %mul.0
%res = add i32 %add, %acc
ret i32 %res
}
; CHECK-LABEL: exchange_swap_3
; CHECK: [[CAST_A:%[^ ]+]] = bitcast i16* %a to i32*
; CHECK: [[LD_A:%[^ ]+]] = load i32, i32* [[CAST_A]]
; CHECK: [[CAST_B:%[^ ]+]] = bitcast i16* %b to i32*
; CHECK: [[LD_B:%[^ ]+]] = load i32, i32* [[CAST_B]]
; CHECK: call i32 @llvm.arm.smladx(i32 [[LD_A]], i32 [[LD_B]]
define i32 @exchange_swap_3(i16* %a, i16* %b, i32 %acc) {
entry:
%addr.a.1 = getelementptr i16, i16* %a, i32 1
%addr.b.1 = getelementptr i16, i16* %b, i32 1
%ld.a.0 = load i16, i16* %a
%sext.a.0 = sext i16 %ld.a.0 to i32
%ld.b.0 = load i16, i16* %b
%ld.a.1 = load i16, i16* %addr.a.1
%ld.b.1 = load i16, i16* %addr.b.1
%sext.a.1 = sext i16 %ld.a.1 to i32
%sext.b.1 = sext i16 %ld.b.1 to i32
%sext.b.0 = sext i16 %ld.b.0 to i32
%mul.0 = mul i32 %sext.b.0, %sext.a.1
%mul.1 = mul i32 %sext.b.1, %sext.a.0
%add = add i32 %mul.1, %mul.0
%res = add i32 %add, %acc
ret i32 %res
}
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