e473daa779
Improve cost computaton for odd vector mem ops by breaking them down into smaller power-of-2 parts and sum up the cost of those parts. This fixes the current cost estimates, which for most parts underestimated the cos, due to using getTypeLegalizationCost, which widens to the next power-of-2 in a single step in most cases. This doesn't reflect the actual cost. See https://llvm.godbolt.org/z/vMsnxMf1v for codegen for the tests. Note that there is a special case for v3i8, for which current codegen is pretty bad, due to automatic widening to v4i8, which in turn requires the conversion to go through memory ops in the stack. I am planning on fixing that as a follow-up, but I am not yet sure where to best fix this. At the moment, there are almost no cases in which such vector operations will be generated automatically. The motivating case is non-power-of-2 SLP vectorization: https://github.com/llvm/llvm-project/pull/77790 PR: https://github.com/llvm/llvm-project/pull/78181
328 lines
17 KiB
LLVM
328 lines
17 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 4
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; RUN: opt -passes="print<cost-model>" 2>&1 -disable-output -mtriple=arm64-apple-macosx < %s | FileCheck %s
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define void @vec3_i32(<3 x i32> %a, <3 x i32> %b, ptr %src, ptr %dst) {
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; CHECK-LABEL: 'vec3_i32'
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; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %l = load <3 x i32>, ptr %src, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add = add <3 x i32> %l, %b
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %cmp = icmp uge <3 x i32> %add, %a
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sub = sub <3 x i32> %add, %a
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sel = select <3 x i1> %cmp, <3 x i32> %add, <3 x i32> %sub
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; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: store <3 x i32> %sel, ptr %dst, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%l = load <3 x i32>, ptr %src, align 1
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%add = add <3 x i32> %l, %b
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%cmp = icmp uge <3 x i32> %add, %a
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%sub = sub <3 x i32> %add, %a
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%sel = select <3 x i1> %cmp, <3 x i32> %add, <3 x i32> %sub
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store <3 x i32> %sel, ptr %dst, align 1
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ret void
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}
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define void @vec3_i32_default_alignment(<3 x i32> %a, <3 x i32> %b, ptr %src, ptr %dst) {
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; CHECK-LABEL: 'vec3_i32_default_alignment'
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %l = load <3 x i32>, ptr %src, align 16
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add = add <3 x i32> %l, %b
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %cmp = icmp uge <3 x i32> %add, %a
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sub = sub <3 x i32> %add, %a
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sel = select <3 x i1> %cmp, <3 x i32> %add, <3 x i32> %sub
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: store <3 x i32> %sel, ptr %dst, align 16
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; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%l = load <3 x i32>, ptr %src
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%add = add <3 x i32> %l, %b
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%cmp = icmp uge <3 x i32> %add, %a
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%sub = sub <3 x i32> %add, %a
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%sel = select <3 x i1> %cmp, <3 x i32> %add, <3 x i32> %sub
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store <3 x i32> %sel, ptr %dst
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ret void
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}
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define void @vec3_i16(<3 x i16> %a, <3 x i16> %b, ptr %src, ptr %dst) {
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; CHECK-LABEL: 'vec3_i16'
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; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %l = load <3 x i16>, ptr %src, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add = add <3 x i16> %l, %b
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %cmp = icmp uge <3 x i16> %add, %a
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sub = sub <3 x i16> %add, %a
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sel = select <3 x i1> %cmp, <3 x i16> %add, <3 x i16> %sub
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; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: store <3 x i16> %sel, ptr %dst, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%l = load <3 x i16>, ptr %src, align 1
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%add = add <3 x i16> %l, %b
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%cmp = icmp uge <3 x i16> %add, %a
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%sub = sub <3 x i16> %add, %a
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%sel = select <3 x i1> %cmp, <3 x i16> %add, <3 x i16> %sub
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store <3 x i16> %sel, ptr %dst, align 1
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ret void
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}
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define void @vec7_i16(ptr %src, ptr %dst) {
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; CHECK-LABEL: 'vec7_i16'
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; CHECK-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %l = load <7 x i16>, ptr %src, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add = add <7 x i16> %l, %l
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; CHECK-NEXT: Cost Model: Found an estimated cost of 3 for instruction: store <7 x i16> %add, ptr %dst, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%l = load <7 x i16>, ptr %src, align 1
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%add = add <7 x i16> %l, %l
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store <7 x i16> %add, ptr %dst, align 1
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ret void
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}
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define void @vec6_i16(ptr %src, ptr %dst) {
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; CHECK-LABEL: 'vec6_i16'
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; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %l = load <6 x i16>, ptr %src, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add = add <6 x i16> %l, %l
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; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: store <6 x i16> %add, ptr %dst, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%l = load <6 x i16>, ptr %src, align 1
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%add = add <6 x i16> %l, %l
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store <6 x i16> %add, ptr %dst, align 1
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ret void
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}
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define void @vec5_i16(ptr %src, ptr %dst) {
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; CHECK-LABEL: 'vec5_i16'
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; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %l = load <5 x i16>, ptr %src, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add = add <5 x i16> %l, %l
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; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: store <5 x i16> %add, ptr %dst, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%l = load <5 x i16>, ptr %src, align 1
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%add = add <5 x i16> %l, %l
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store <5 x i16> %add, ptr %dst, align 1
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ret void
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}
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define void @vec3_i16_zext_i32(<3 x i32> %a, <3 x i32> %b, ptr %src, ptr %dst) {
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; CHECK-LABEL: 'vec3_i16_zext_i32'
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; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %l = load <3 x i16>, ptr %src, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %l.ext = zext <3 x i16> %l to <3 x i32>
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add = add <3 x i32> %l.ext, %b
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sub = sub <3 x i32> %add, %a
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sub.trunc = trunc <3 x i32> %sub to <3 x i16>
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; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: store <3 x i16> %sub.trunc, ptr %dst, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%l = load <3 x i16>, ptr %src, align 1
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%l.ext = zext <3 x i16> %l to <3 x i32>
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%add = add <3 x i32> %l.ext, %b
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%sub = sub <3 x i32> %add, %a
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%sub.trunc = trunc <3 x i32> %sub to <3 x i16>
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store <3 x i16> %sub.trunc, ptr %dst, align 1
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ret void
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}
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define void @vec3_i8(<3 x i8> %a, <3 x i8> %b, ptr %src, ptr %dst) {
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; CHECK-LABEL: 'vec3_i8'
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; CHECK-NEXT: Cost Model: Found an estimated cost of 6 for instruction: %l = load <3 x i8>, ptr %src, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add = add <3 x i8> %l, %b
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %cmp = icmp uge <3 x i8> %add, %a
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sub = sub <3 x i8> %add, %a
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sel = select <3 x i1> %cmp, <3 x i8> %add, <3 x i8> %sub
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; CHECK-NEXT: Cost Model: Found an estimated cost of 6 for instruction: store <3 x i8> %sel, ptr %dst, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%l = load <3 x i8>, ptr %src, align 1
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%add = add <3 x i8> %l, %b
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%cmp = icmp uge <3 x i8> %add, %a
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%sub = sub <3 x i8> %add, %a
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%sel = select <3 x i1> %cmp, <3 x i8> %add, <3 x i8> %sub
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store <3 x i8> %sel, ptr %dst, align 1
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ret void
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}
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define void @vec3_i8_zext_i32(<3 x i32> %a, <3 x i32> %b, ptr %src, ptr %dst) {
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; CHECK-LABEL: 'vec3_i8_zext_i32'
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; CHECK-NEXT: Cost Model: Found an estimated cost of 6 for instruction: %l = load <3 x i8>, ptr %src, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %l.ext = zext <3 x i8> %l to <3 x i32>
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add = add <3 x i32> %l.ext, %b
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sub = sub <3 x i32> %add, %a
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sub.trunc = trunc <3 x i32> %sub to <3 x i8>
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; CHECK-NEXT: Cost Model: Found an estimated cost of 6 for instruction: store <3 x i8> %sub.trunc, ptr %dst, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%l = load <3 x i8>, ptr %src, align 1
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%l.ext = zext <3 x i8> %l to <3 x i32>
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%add = add <3 x i32> %l.ext, %b
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%sub = sub <3 x i32> %add, %a
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%sub.trunc = trunc <3 x i32> %sub to <3 x i8>
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store <3 x i8> %sub.trunc, ptr %dst, align 1
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ret void
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}
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define void @vec3_i8_sext_i32(<3 x i32> %a, <3 x i32> %b, ptr %src, ptr %dst) {
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; CHECK-LABEL: 'vec3_i8_sext_i32'
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; CHECK-NEXT: Cost Model: Found an estimated cost of 6 for instruction: %l = load <3 x i8>, ptr %src, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %l.ext = sext <3 x i8> %l to <3 x i32>
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add = add <3 x i32> %l.ext, %b
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sub = sub <3 x i32> %add, %a
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sub.trunc = trunc <3 x i32> %sub to <3 x i8>
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; CHECK-NEXT: Cost Model: Found an estimated cost of 6 for instruction: store <3 x i8> %sub.trunc, ptr %dst, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%l = load <3 x i8>, ptr %src, align 1
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%l.ext = sext <3 x i8> %l to <3 x i32>
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%add = add <3 x i32> %l.ext, %b
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%sub = sub <3 x i32> %add, %a
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%sub.trunc = trunc <3 x i32> %sub to <3 x i8>
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store <3 x i8> %sub.trunc, ptr %dst, align 1
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ret void
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}
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define void @vec3_i30(<3 x i30> %a, <3 x i30> %b, ptr %src, ptr %dst) {
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; CHECK-LABEL: 'vec3_i30'
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; CHECK-NEXT: Cost Model: Found an estimated cost of 6 for instruction: %l = load <3 x i30>, ptr %src, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add = add <3 x i30> %l, %b
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sub = sub <3 x i30> %add, %a
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; CHECK-NEXT: Cost Model: Found an estimated cost of 6 for instruction: store <3 x i30> %sub, ptr %dst, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%l = load <3 x i30>, ptr %src, align 1
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%add = add <3 x i30> %l, %b
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%sub = sub <3 x i30> %add, %a
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store <3 x i30> %sub, ptr %dst, align 1
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ret void
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}
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define void @vec3_float(<3 x float> %a, <3 x float> %b, ptr %src, ptr %dst) {
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; CHECK-LABEL: 'vec3_float'
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; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %l = load <3 x float>, ptr %src, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add = fadd <3 x float> %l, %b
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sub = fsub <3 x float> %add, %a
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; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: store <3 x float> %sub, ptr %dst, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%l = load <3 x float>, ptr %src, align 1
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%add = fadd <3 x float> %l, %b
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%sub = fsub <3 x float> %add, %a
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store <3 x float> %sub, ptr %dst, align 1
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ret void
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}
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define void @vec3_half(<3 x half> %a, <3 x half> %b, ptr %src, ptr %dst) {
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; CHECK-LABEL: 'vec3_half'
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; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %l = load <3 x half>, ptr %src, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %add = fadd <3 x half> %l, %b
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; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %sub = fsub <3 x half> %add, %a
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; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: store <3 x half> %sub, ptr %dst, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%l = load <3 x half>, ptr %src, align 1
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%add = fadd <3 x half> %l, %b
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%sub = fsub <3 x half> %add, %a
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store <3 x half> %sub, ptr %dst, align 1
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ret void
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}
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define void @vec15_i8(ptr %src, ptr %dst) {
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; CHECK-LABEL: 'vec15_i8'
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; CHECK-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %l = load <15 x i8>, ptr %src, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add = add <15 x i8> %l, %l
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; CHECK-NEXT: Cost Model: Found an estimated cost of 4 for instruction: store <15 x i8> %add, ptr %dst, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%l = load <15 x i8>, ptr %src, align 1
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%add = add <15 x i8> %l, %l
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store <15 x i8> %add, ptr %dst, align 1
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ret void
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}
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define void @vec14_i8(ptr %src, ptr %dst) {
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; CHECK-LABEL: 'vec14_i8'
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; CHECK-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %l = load <14 x i8>, ptr %src, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add = add <14 x i8> %l, %l
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; CHECK-NEXT: Cost Model: Found an estimated cost of 3 for instruction: store <14 x i8> %add, ptr %dst, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%l = load <14 x i8>, ptr %src, align 1
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%add = add <14 x i8> %l, %l
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store <14 x i8> %add, ptr %dst, align 1
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ret void
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}
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define void @vec13_i8(ptr %src, ptr %dst) {
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; CHECK-LABEL: 'vec13_i8'
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; CHECK-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %l = load <13 x i8>, ptr %src, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add = add <13 x i8> %l, %l
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; CHECK-NEXT: Cost Model: Found an estimated cost of 3 for instruction: store <13 x i8> %add, ptr %dst, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%l = load <13 x i8>, ptr %src, align 1
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%add = add <13 x i8> %l, %l
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store <13 x i8> %add, ptr %dst, align 1
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ret void
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}
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define void @vec12_i8(ptr %src, ptr %dst) {
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; CHECK-LABEL: 'vec12_i8'
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; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %l = load <12 x i8>, ptr %src, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add = add <12 x i8> %l, %l
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; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: store <12 x i8> %add, ptr %dst, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%l = load <12 x i8>, ptr %src, align 1
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%add = add <12 x i8> %l, %l
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store <12 x i8> %add, ptr %dst, align 1
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ret void
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}
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define void @vec11_i8(ptr %src, ptr %dst) {
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; CHECK-LABEL: 'vec11_i8'
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; CHECK-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %l = load <11 x i8>, ptr %src, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add = add <11 x i8> %l, %l
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; CHECK-NEXT: Cost Model: Found an estimated cost of 3 for instruction: store <11 x i8> %add, ptr %dst, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%l = load <11 x i8>, ptr %src, align 1
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%add = add <11 x i8> %l, %l
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store <11 x i8> %add, ptr %dst, align 1
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ret void
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}
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define void @vec7_i8(<7 x i8> %a, <7 x i8> %b, ptr %src, ptr %dst) {
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; CHECK-LABEL: 'vec7_i8'
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; CHECK-NEXT: Cost Model: Found an estimated cost of 3 for instruction: %l = load <7 x i8>, ptr %src, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add = add <7 x i8> %l, %b
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; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %sub = sub <7 x i8> %add, %a
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; CHECK-NEXT: Cost Model: Found an estimated cost of 3 for instruction: store <7 x i8> %sub, ptr %dst, align 1
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; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%l = load <7 x i8>, ptr %src, align 1
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%add = add <7 x i8> %l, %b
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%sub = sub <7 x i8> %add, %a
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store <7 x i8> %sub, ptr %dst, align 1
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ret void
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}
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define void @vec6_i8(ptr %src, ptr %dst) {
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; CHECK-LABEL: 'vec6_i8'
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; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %l = load <6 x i8>, ptr %src, align 1
|
|
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add = add <6 x i8> %l, %l
|
|
; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: store <6 x i8> %add, ptr %dst, align 1
|
|
; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
|
|
;
|
|
%l = load <6 x i8>, ptr %src, align 1
|
|
%add = add <6 x i8> %l, %l
|
|
store <6 x i8> %add, ptr %dst, align 1
|
|
ret void
|
|
}
|
|
|
|
define void @vec5_i8(ptr %src, ptr %dst) {
|
|
; CHECK-LABEL: 'vec5_i8'
|
|
; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %l = load <5 x i8>, ptr %src, align 1
|
|
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %add = add <5 x i8> %l, %l
|
|
; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: store <5 x i8> %add, ptr %dst, align 1
|
|
; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
|
|
;
|
|
%l = load <5 x i8>, ptr %src, align 1
|
|
%add = add <5 x i8> %l, %l
|
|
store <5 x i8> %add, ptr %dst, align 1
|
|
ret void
|
|
}
|
|
|
|
|