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[NFC][X86][CostModel] Add tests for byteswap intrinsic
This commit is contained in:
Roman Lebedev
parent
0d572a30c9
commit
202c41a158
147
test/Analysis/CostModel/X86/bswap-store.ll
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147
test/Analysis/CostModel/X86/bswap-store.ll
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@ -0,0 +1,147 @@
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; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
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; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -cost-model -analyze | FileCheck %s --check-prefixes=ALL,NOMOVBE,X64
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; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -cost-model -analyze -mattr=+movbe | FileCheck %s --check-prefixes=ALL,MOVBE,X64
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; RUN: opt < %s -mtriple=i686-unknown-linux-gnu -cost-model -analyze | FileCheck %s --check-prefixes=ALL,NOMOVBE,X86
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; RUN: opt < %s -mtriple=i686-unknown-linux-gnu -cost-model -analyze -mattr=+movbe | FileCheck %s --check-prefixes=ALL,MOVBE,X86
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declare i16 @llvm.bswap.i16(i16)
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declare i32 @llvm.bswap.i32(i32)
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declare i64 @llvm.bswap.i64(i64)
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declare i128 @llvm.bswap.i128(i128)
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define void @var_bswap_store_i16(i16 %a, i16* %dst) {
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; NOMOVBE-LABEL: 'var_bswap_store_i16'
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; NOMOVBE-NEXT: Cost Model: Found an estimated cost of 10 for instruction: %bswap = call i16 @llvm.bswap.i16(i16 %a)
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; NOMOVBE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: store i16 %bswap, i16* %dst, align 1
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; NOMOVBE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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; MOVBE-LABEL: 'var_bswap_store_i16'
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; MOVBE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call i16 @llvm.bswap.i16(i16 %a)
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; MOVBE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: store i16 %bswap, i16* %dst, align 1
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; MOVBE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%bswap = call i16 @llvm.bswap.i16(i16 %a)
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store i16 %bswap, i16* %dst, align 1
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ret void
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}
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define void @var_bswap_store_i16_extrause(i16 %a, i16* %dst) {
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; NOMOVBE-LABEL: 'var_bswap_store_i16_extrause'
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; NOMOVBE-NEXT: Cost Model: Found an estimated cost of 10 for instruction: %bswap = call i16 @llvm.bswap.i16(i16 %a)
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; NOMOVBE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: store i16 %bswap, i16* %dst, align 1
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; NOMOVBE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap2 = shl i16 %bswap, 2
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; NOMOVBE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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; MOVBE-LABEL: 'var_bswap_store_i16_extrause'
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; MOVBE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call i16 @llvm.bswap.i16(i16 %a)
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; MOVBE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: store i16 %bswap, i16* %dst, align 1
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; MOVBE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap2 = shl i16 %bswap, 2
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; MOVBE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%bswap = call i16 @llvm.bswap.i16(i16 %a)
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store i16 %bswap, i16* %dst, align 1
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%bswap2 = shl i16 %bswap, 2 ; incur an extra use to the bswap
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ret void
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}
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define void @var_bswap_store_i32(i32 %a, i32* %dst) {
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; ALL-LABEL: 'var_bswap_store_i32'
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; ALL-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call i32 @llvm.bswap.i32(i32 %a)
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; ALL-NEXT: Cost Model: Found an estimated cost of 1 for instruction: store i32 %bswap, i32* %dst, align 1
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; ALL-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%bswap = call i32 @llvm.bswap.i32(i32 %a)
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store i32 %bswap, i32* %dst, align 1
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ret void
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}
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define void @var_bswap_store_i32_extrause(i32 %a, i32* %dst) {
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; ALL-LABEL: 'var_bswap_store_i32_extrause'
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; ALL-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call i32 @llvm.bswap.i32(i32 %a)
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; ALL-NEXT: Cost Model: Found an estimated cost of 1 for instruction: store i32 %bswap, i32* %dst, align 1
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; ALL-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap2 = shl i32 %bswap, 2
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; ALL-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%bswap = call i32 @llvm.bswap.i32(i32 %a)
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store i32 %bswap, i32* %dst, align 1
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%bswap2 = shl i32 %bswap, 2 ; incur an extra use to the bswap
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ret void
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}
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define void @var_bswap_store_i64(i64 %a, i64* %dst) {
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; X64-LABEL: 'var_bswap_store_i64'
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; X64-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call i64 @llvm.bswap.i64(i64 %a)
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; X64-NEXT: Cost Model: Found an estimated cost of 1 for instruction: store i64 %bswap, i64* %dst, align 1
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; X64-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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; X86-LABEL: 'var_bswap_store_i64'
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; X86-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %bswap = call i64 @llvm.bswap.i64(i64 %a)
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; X86-NEXT: Cost Model: Found an estimated cost of 2 for instruction: store i64 %bswap, i64* %dst, align 1
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; X86-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%bswap = call i64 @llvm.bswap.i64(i64 %a)
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store i64 %bswap, i64* %dst, align 1
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ret void
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}
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define void @var_bswap_store_i64_extrause(i64 %a, i64* %dst) {
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; X64-LABEL: 'var_bswap_store_i64_extrause'
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; X64-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call i64 @llvm.bswap.i64(i64 %a)
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; X64-NEXT: Cost Model: Found an estimated cost of 1 for instruction: store i64 %bswap, i64* %dst, align 1
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; X64-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap2 = shl i64 %bswap, 2
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; X64-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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; X86-LABEL: 'var_bswap_store_i64_extrause'
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; X86-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %bswap = call i64 @llvm.bswap.i64(i64 %a)
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; X86-NEXT: Cost Model: Found an estimated cost of 2 for instruction: store i64 %bswap, i64* %dst, align 1
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; X86-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %bswap2 = shl i64 %bswap, 2
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; X86-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%bswap = call i64 @llvm.bswap.i64(i64 %a)
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store i64 %bswap, i64* %dst, align 1
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%bswap2 = shl i64 %bswap, 2 ; incur an extra use to the bswap
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ret void
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}
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define void @var_bswap_store_i128(i128 %a, i128* %dst) {
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; X64-LABEL: 'var_bswap_store_i128'
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; X64-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %bswap = call i128 @llvm.bswap.i128(i128 %a)
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; X64-NEXT: Cost Model: Found an estimated cost of 2 for instruction: store i128 %bswap, i128* %dst, align 1
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; X64-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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; X86-LABEL: 'var_bswap_store_i128'
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; X86-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %bswap = call i128 @llvm.bswap.i128(i128 %a)
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; X86-NEXT: Cost Model: Found an estimated cost of 4 for instruction: store i128 %bswap, i128* %dst, align 1
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; X86-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%bswap = call i128 @llvm.bswap.i128(i128 %a)
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store i128 %bswap, i128* %dst, align 1
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ret void
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}
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define void @var_bswap_store_i128_extrause(i128 %a, i128* %dst) {
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; X64-LABEL: 'var_bswap_store_i128_extrause'
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; X64-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %bswap = call i128 @llvm.bswap.i128(i128 %a)
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; X64-NEXT: Cost Model: Found an estimated cost of 2 for instruction: store i128 %bswap, i128* %dst, align 1
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; X64-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %bswap2 = shl i128 %bswap, 2
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; X64-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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; X86-LABEL: 'var_bswap_store_i128_extrause'
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; X86-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %bswap = call i128 @llvm.bswap.i128(i128 %a)
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; X86-NEXT: Cost Model: Found an estimated cost of 4 for instruction: store i128 %bswap, i128* %dst, align 1
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; X86-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %bswap2 = shl i128 %bswap, 2
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; X86-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret void
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;
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%bswap = call i128 @llvm.bswap.i128(i128 %a)
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store i128 %bswap, i128* %dst, align 1
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%bswap2 = shl i128 %bswap, 2 ; incur an extra use to the bswap
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ret void
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}
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131
test/Analysis/CostModel/X86/bswap-vec.ll
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131
test/Analysis/CostModel/X86/bswap-vec.ll
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@ -0,0 +1,131 @@
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; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
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; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -cost-model -analyze -mattr=+sse2 | FileCheck %s -check-prefixes=SSE2
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; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -cost-model -analyze -mattr=+sse4.2 | FileCheck %s -check-prefixes=SSE42
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; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -cost-model -analyze -mattr=+avx | FileCheck %s -check-prefixes=AVX,AVX1
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; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -cost-model -analyze -mattr=+avx2 | FileCheck %s -check-prefixes=AVX,AVX2
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; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -cost-model -analyze -mattr=+xop,+avx | FileCheck %s -check-prefixes=AVX,AVX1
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; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -cost-model -analyze -mattr=+xop,+avx2 | FileCheck %s -check-prefixes=AVX,AVX2
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; Verify the cost of vector bswap instructions.
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declare <2 x i64> @llvm.bswap.v2i64(<2 x i64>)
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declare <4 x i32> @llvm.bswap.v4i32(<4 x i32>)
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declare <8 x i16> @llvm.bswap.v8i16(<8 x i16>)
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declare <4 x i64> @llvm.bswap.v4i64(<4 x i64>)
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declare <8 x i32> @llvm.bswap.v8i32(<8 x i32>)
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declare <16 x i16> @llvm.bswap.v16i16(<16 x i16>)
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define <2 x i64> @var_bswap_v2i64(<2 x i64> %a) {
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; SSE2-LABEL: 'var_bswap_v2i64'
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; SSE2-NEXT: Cost Model: Found an estimated cost of 7 for instruction: %bswap = call <2 x i64> @llvm.bswap.v2i64(<2 x i64> %a)
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; SSE2-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <2 x i64> %bswap
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;
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; SSE42-LABEL: 'var_bswap_v2i64'
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; SSE42-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call <2 x i64> @llvm.bswap.v2i64(<2 x i64> %a)
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; SSE42-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <2 x i64> %bswap
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;
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; AVX-LABEL: 'var_bswap_v2i64'
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; AVX-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call <2 x i64> @llvm.bswap.v2i64(<2 x i64> %a)
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; AVX-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <2 x i64> %bswap
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;
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%bswap = call <2 x i64> @llvm.bswap.v2i64(<2 x i64> %a)
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ret <2 x i64> %bswap
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}
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define <4 x i64> @var_bswap_v4i64(<4 x i64> %a) {
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; SSE2-LABEL: 'var_bswap_v4i64'
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; SSE2-NEXT: Cost Model: Found an estimated cost of 14 for instruction: %bswap = call <4 x i64> @llvm.bswap.v4i64(<4 x i64> %a)
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; SSE2-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <4 x i64> %bswap
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;
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; SSE42-LABEL: 'var_bswap_v4i64'
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; SSE42-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %bswap = call <4 x i64> @llvm.bswap.v4i64(<4 x i64> %a)
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; SSE42-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <4 x i64> %bswap
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;
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; AVX1-LABEL: 'var_bswap_v4i64'
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; AVX1-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %bswap = call <4 x i64> @llvm.bswap.v4i64(<4 x i64> %a)
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; AVX1-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <4 x i64> %bswap
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;
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; AVX2-LABEL: 'var_bswap_v4i64'
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; AVX2-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call <4 x i64> @llvm.bswap.v4i64(<4 x i64> %a)
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; AVX2-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <4 x i64> %bswap
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;
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%bswap = call <4 x i64> @llvm.bswap.v4i64(<4 x i64> %a)
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ret <4 x i64> %bswap
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}
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define <4 x i32> @var_bswap_v4i32(<4 x i32> %a) {
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; SSE2-LABEL: 'var_bswap_v4i32'
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; SSE2-NEXT: Cost Model: Found an estimated cost of 7 for instruction: %bswap = call <4 x i32> @llvm.bswap.v4i32(<4 x i32> %a)
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; SSE2-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <4 x i32> %bswap
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;
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; SSE42-LABEL: 'var_bswap_v4i32'
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; SSE42-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call <4 x i32> @llvm.bswap.v4i32(<4 x i32> %a)
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; SSE42-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <4 x i32> %bswap
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;
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; AVX-LABEL: 'var_bswap_v4i32'
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; AVX-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call <4 x i32> @llvm.bswap.v4i32(<4 x i32> %a)
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; AVX-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <4 x i32> %bswap
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;
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%bswap = call <4 x i32> @llvm.bswap.v4i32(<4 x i32> %a)
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ret <4 x i32> %bswap
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}
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define <8 x i32> @var_bswap_v8i32(<8 x i32> %a) {
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; SSE2-LABEL: 'var_bswap_v8i32'
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; SSE2-NEXT: Cost Model: Found an estimated cost of 14 for instruction: %bswap = call <8 x i32> @llvm.bswap.v8i32(<8 x i32> %a)
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; SSE2-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <8 x i32> %bswap
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;
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; SSE42-LABEL: 'var_bswap_v8i32'
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; SSE42-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %bswap = call <8 x i32> @llvm.bswap.v8i32(<8 x i32> %a)
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; SSE42-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <8 x i32> %bswap
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;
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; AVX1-LABEL: 'var_bswap_v8i32'
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; AVX1-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %bswap = call <8 x i32> @llvm.bswap.v8i32(<8 x i32> %a)
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; AVX1-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <8 x i32> %bswap
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;
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; AVX2-LABEL: 'var_bswap_v8i32'
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; AVX2-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call <8 x i32> @llvm.bswap.v8i32(<8 x i32> %a)
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; AVX2-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <8 x i32> %bswap
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;
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%bswap = call <8 x i32> @llvm.bswap.v8i32(<8 x i32> %a)
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ret <8 x i32> %bswap
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}
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define <8 x i16> @var_bswap_v8i16(<8 x i16> %a) {
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; SSE2-LABEL: 'var_bswap_v8i16'
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; SSE2-NEXT: Cost Model: Found an estimated cost of 7 for instruction: %bswap = call <8 x i16> @llvm.bswap.v8i16(<8 x i16> %a)
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; SSE2-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <8 x i16> %bswap
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;
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; SSE42-LABEL: 'var_bswap_v8i16'
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; SSE42-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call <8 x i16> @llvm.bswap.v8i16(<8 x i16> %a)
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; SSE42-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <8 x i16> %bswap
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;
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; AVX-LABEL: 'var_bswap_v8i16'
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; AVX-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call <8 x i16> @llvm.bswap.v8i16(<8 x i16> %a)
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; AVX-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <8 x i16> %bswap
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;
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%bswap = call <8 x i16> @llvm.bswap.v8i16(<8 x i16> %a)
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ret <8 x i16> %bswap
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}
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define <16 x i16> @var_bswap_v16i16(<16 x i16> %a) {
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; SSE2-LABEL: 'var_bswap_v16i16'
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; SSE2-NEXT: Cost Model: Found an estimated cost of 14 for instruction: %bswap = call <16 x i16> @llvm.bswap.v16i16(<16 x i16> %a)
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; SSE2-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <16 x i16> %bswap
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;
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; SSE42-LABEL: 'var_bswap_v16i16'
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; SSE42-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %bswap = call <16 x i16> @llvm.bswap.v16i16(<16 x i16> %a)
|
||||
; SSE42-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <16 x i16> %bswap
|
||||
;
|
||||
; AVX1-LABEL: 'var_bswap_v16i16'
|
||||
; AVX1-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %bswap = call <16 x i16> @llvm.bswap.v16i16(<16 x i16> %a)
|
||||
; AVX1-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <16 x i16> %bswap
|
||||
;
|
||||
; AVX2-LABEL: 'var_bswap_v16i16'
|
||||
; AVX2-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call <16 x i16> @llvm.bswap.v16i16(<16 x i16> %a)
|
||||
; AVX2-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <16 x i16> %bswap
|
||||
;
|
||||
%bswap = call <16 x i16> @llvm.bswap.v16i16(<16 x i16> %a)
|
||||
ret <16 x i16> %bswap
|
||||
}
|
||||
@ -1,131 +1,60 @@
|
||||
; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
|
||||
; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -cost-model -analyze -mattr=+sse2 | FileCheck %s -check-prefixes=SSE2
|
||||
; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -cost-model -analyze -mattr=+sse4.2 | FileCheck %s -check-prefixes=SSE42
|
||||
; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -cost-model -analyze -mattr=+avx | FileCheck %s -check-prefixes=AVX,AVX1
|
||||
; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -cost-model -analyze -mattr=+avx2 | FileCheck %s -check-prefixes=AVX,AVX2
|
||||
; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -cost-model -analyze -mattr=+xop,+avx | FileCheck %s -check-prefixes=AVX,AVX1
|
||||
; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -cost-model -analyze -mattr=+xop,+avx2 | FileCheck %s -check-prefixes=AVX,AVX2
|
||||
; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -cost-model -analyze | FileCheck %s --check-prefixes=ALL,NOMOVBE,X64
|
||||
; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -cost-model -analyze -mattr=+movbe | FileCheck %s --check-prefixes=ALL,MOVBE,X64
|
||||
; RUN: opt < %s -mtriple=i686-unknown-linux-gnu -cost-model -analyze | FileCheck %s --check-prefixes=ALL,NOMOVBE,X86
|
||||
; RUN: opt < %s -mtriple=i686-unknown-linux-gnu -cost-model -analyze -mattr=+movbe | FileCheck %s --check-prefixes=ALL,MOVBE,X86
|
||||
|
||||
; Verify the cost of vector bswap instructions.
|
||||
declare i16 @llvm.bswap.i16(i16)
|
||||
declare i32 @llvm.bswap.i32(i32)
|
||||
declare i64 @llvm.bswap.i64(i64)
|
||||
declare i128 @llvm.bswap.i128(i128)
|
||||
|
||||
declare <2 x i64> @llvm.bswap.v2i64(<2 x i64>)
|
||||
declare <4 x i32> @llvm.bswap.v4i32(<4 x i32>)
|
||||
declare <8 x i16> @llvm.bswap.v8i16(<8 x i16>)
|
||||
; Verify the cost of scalar bswap instructions.
|
||||
|
||||
declare <4 x i64> @llvm.bswap.v4i64(<4 x i64>)
|
||||
declare <8 x i32> @llvm.bswap.v8i32(<8 x i32>)
|
||||
declare <16 x i16> @llvm.bswap.v16i16(<16 x i16>)
|
||||
|
||||
define <2 x i64> @var_bswap_v2i64(<2 x i64> %a) {
|
||||
; SSE2-LABEL: 'var_bswap_v2i64'
|
||||
; SSE2-NEXT: Cost Model: Found an estimated cost of 7 for instruction: %bswap = call <2 x i64> @llvm.bswap.v2i64(<2 x i64> %a)
|
||||
; SSE2-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <2 x i64> %bswap
|
||||
define i16 @var_bswap_i16(i16 %a) {
|
||||
; NOMOVBE-LABEL: 'var_bswap_i16'
|
||||
; NOMOVBE-NEXT: Cost Model: Found an estimated cost of 10 for instruction: %bswap = call i16 @llvm.bswap.i16(i16 %a)
|
||||
; NOMOVBE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i16 %bswap
|
||||
;
|
||||
; SSE42-LABEL: 'var_bswap_v2i64'
|
||||
; SSE42-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call <2 x i64> @llvm.bswap.v2i64(<2 x i64> %a)
|
||||
; SSE42-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <2 x i64> %bswap
|
||||
; MOVBE-LABEL: 'var_bswap_i16'
|
||||
; MOVBE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call i16 @llvm.bswap.i16(i16 %a)
|
||||
; MOVBE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i16 %bswap
|
||||
;
|
||||
; AVX-LABEL: 'var_bswap_v2i64'
|
||||
; AVX-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call <2 x i64> @llvm.bswap.v2i64(<2 x i64> %a)
|
||||
; AVX-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <2 x i64> %bswap
|
||||
;
|
||||
%bswap = call <2 x i64> @llvm.bswap.v2i64(<2 x i64> %a)
|
||||
ret <2 x i64> %bswap
|
||||
%bswap = call i16 @llvm.bswap.i16(i16 %a)
|
||||
ret i16 %bswap
|
||||
}
|
||||
|
||||
define <4 x i64> @var_bswap_v4i64(<4 x i64> %a) {
|
||||
; SSE2-LABEL: 'var_bswap_v4i64'
|
||||
; SSE2-NEXT: Cost Model: Found an estimated cost of 14 for instruction: %bswap = call <4 x i64> @llvm.bswap.v4i64(<4 x i64> %a)
|
||||
; SSE2-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <4 x i64> %bswap
|
||||
define i32 @var_bswap_i32(i32 %a) {
|
||||
; ALL-LABEL: 'var_bswap_i32'
|
||||
; ALL-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call i32 @llvm.bswap.i32(i32 %a)
|
||||
; ALL-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i32 %bswap
|
||||
;
|
||||
; SSE42-LABEL: 'var_bswap_v4i64'
|
||||
; SSE42-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %bswap = call <4 x i64> @llvm.bswap.v4i64(<4 x i64> %a)
|
||||
; SSE42-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <4 x i64> %bswap
|
||||
;
|
||||
; AVX1-LABEL: 'var_bswap_v4i64'
|
||||
; AVX1-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %bswap = call <4 x i64> @llvm.bswap.v4i64(<4 x i64> %a)
|
||||
; AVX1-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <4 x i64> %bswap
|
||||
;
|
||||
; AVX2-LABEL: 'var_bswap_v4i64'
|
||||
; AVX2-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call <4 x i64> @llvm.bswap.v4i64(<4 x i64> %a)
|
||||
; AVX2-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <4 x i64> %bswap
|
||||
;
|
||||
%bswap = call <4 x i64> @llvm.bswap.v4i64(<4 x i64> %a)
|
||||
ret <4 x i64> %bswap
|
||||
%bswap = call i32 @llvm.bswap.i32(i32 %a)
|
||||
ret i32 %bswap
|
||||
}
|
||||
|
||||
define <4 x i32> @var_bswap_v4i32(<4 x i32> %a) {
|
||||
; SSE2-LABEL: 'var_bswap_v4i32'
|
||||
; SSE2-NEXT: Cost Model: Found an estimated cost of 7 for instruction: %bswap = call <4 x i32> @llvm.bswap.v4i32(<4 x i32> %a)
|
||||
; SSE2-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <4 x i32> %bswap
|
||||
define i64 @var_bswap_i64(i64 %a) {
|
||||
; X64-LABEL: 'var_bswap_i64'
|
||||
; X64-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call i64 @llvm.bswap.i64(i64 %a)
|
||||
; X64-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i64 %bswap
|
||||
;
|
||||
; SSE42-LABEL: 'var_bswap_v4i32'
|
||||
; SSE42-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call <4 x i32> @llvm.bswap.v4i32(<4 x i32> %a)
|
||||
; SSE42-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <4 x i32> %bswap
|
||||
; X86-LABEL: 'var_bswap_i64'
|
||||
; X86-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %bswap = call i64 @llvm.bswap.i64(i64 %a)
|
||||
; X86-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i64 %bswap
|
||||
;
|
||||
; AVX-LABEL: 'var_bswap_v4i32'
|
||||
; AVX-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call <4 x i32> @llvm.bswap.v4i32(<4 x i32> %a)
|
||||
; AVX-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <4 x i32> %bswap
|
||||
;
|
||||
%bswap = call <4 x i32> @llvm.bswap.v4i32(<4 x i32> %a)
|
||||
ret <4 x i32> %bswap
|
||||
%bswap = call i64 @llvm.bswap.i64(i64 %a)
|
||||
ret i64 %bswap
|
||||
}
|
||||
|
||||
define <8 x i32> @var_bswap_v8i32(<8 x i32> %a) {
|
||||
; SSE2-LABEL: 'var_bswap_v8i32'
|
||||
; SSE2-NEXT: Cost Model: Found an estimated cost of 14 for instruction: %bswap = call <8 x i32> @llvm.bswap.v8i32(<8 x i32> %a)
|
||||
; SSE2-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <8 x i32> %bswap
|
||||
define i128 @var_bswap_i128(i128 %a) {
|
||||
; X64-LABEL: 'var_bswap_i128'
|
||||
; X64-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %bswap = call i128 @llvm.bswap.i128(i128 %a)
|
||||
; X64-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i128 %bswap
|
||||
;
|
||||
; SSE42-LABEL: 'var_bswap_v8i32'
|
||||
; SSE42-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %bswap = call <8 x i32> @llvm.bswap.v8i32(<8 x i32> %a)
|
||||
; SSE42-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <8 x i32> %bswap
|
||||
; X86-LABEL: 'var_bswap_i128'
|
||||
; X86-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %bswap = call i128 @llvm.bswap.i128(i128 %a)
|
||||
; X86-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i128 %bswap
|
||||
;
|
||||
; AVX1-LABEL: 'var_bswap_v8i32'
|
||||
; AVX1-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %bswap = call <8 x i32> @llvm.bswap.v8i32(<8 x i32> %a)
|
||||
; AVX1-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <8 x i32> %bswap
|
||||
;
|
||||
; AVX2-LABEL: 'var_bswap_v8i32'
|
||||
; AVX2-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call <8 x i32> @llvm.bswap.v8i32(<8 x i32> %a)
|
||||
; AVX2-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <8 x i32> %bswap
|
||||
;
|
||||
%bswap = call <8 x i32> @llvm.bswap.v8i32(<8 x i32> %a)
|
||||
ret <8 x i32> %bswap
|
||||
}
|
||||
|
||||
define <8 x i16> @var_bswap_v8i16(<8 x i16> %a) {
|
||||
; SSE2-LABEL: 'var_bswap_v8i16'
|
||||
; SSE2-NEXT: Cost Model: Found an estimated cost of 7 for instruction: %bswap = call <8 x i16> @llvm.bswap.v8i16(<8 x i16> %a)
|
||||
; SSE2-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <8 x i16> %bswap
|
||||
;
|
||||
; SSE42-LABEL: 'var_bswap_v8i16'
|
||||
; SSE42-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call <8 x i16> @llvm.bswap.v8i16(<8 x i16> %a)
|
||||
; SSE42-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <8 x i16> %bswap
|
||||
;
|
||||
; AVX-LABEL: 'var_bswap_v8i16'
|
||||
; AVX-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call <8 x i16> @llvm.bswap.v8i16(<8 x i16> %a)
|
||||
; AVX-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <8 x i16> %bswap
|
||||
;
|
||||
%bswap = call <8 x i16> @llvm.bswap.v8i16(<8 x i16> %a)
|
||||
ret <8 x i16> %bswap
|
||||
}
|
||||
|
||||
define <16 x i16> @var_bswap_v16i16(<16 x i16> %a) {
|
||||
; SSE2-LABEL: 'var_bswap_v16i16'
|
||||
; SSE2-NEXT: Cost Model: Found an estimated cost of 14 for instruction: %bswap = call <16 x i16> @llvm.bswap.v16i16(<16 x i16> %a)
|
||||
; SSE2-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <16 x i16> %bswap
|
||||
;
|
||||
; SSE42-LABEL: 'var_bswap_v16i16'
|
||||
; SSE42-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %bswap = call <16 x i16> @llvm.bswap.v16i16(<16 x i16> %a)
|
||||
; SSE42-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <16 x i16> %bswap
|
||||
;
|
||||
; AVX1-LABEL: 'var_bswap_v16i16'
|
||||
; AVX1-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %bswap = call <16 x i16> @llvm.bswap.v16i16(<16 x i16> %a)
|
||||
; AVX1-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <16 x i16> %bswap
|
||||
;
|
||||
; AVX2-LABEL: 'var_bswap_v16i16'
|
||||
; AVX2-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call <16 x i16> @llvm.bswap.v16i16(<16 x i16> %a)
|
||||
; AVX2-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret <16 x i16> %bswap
|
||||
;
|
||||
%bswap = call <16 x i16> @llvm.bswap.v16i16(<16 x i16> %a)
|
||||
ret <16 x i16> %bswap
|
||||
%bswap = call i128 @llvm.bswap.i128(i128 %a)
|
||||
ret i128 %bswap
|
||||
}
|
||||
|
||||
158
test/Analysis/CostModel/X86/load-bswap.ll
Normal file
158
test/Analysis/CostModel/X86/load-bswap.ll
Normal file
@ -0,0 +1,158 @@
|
||||
; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
|
||||
; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -cost-model -analyze | FileCheck %s --check-prefixes=ALL,NOMOVBE,X64
|
||||
; RUN: opt < %s -mtriple=x86_64-unknown-linux-gnu -cost-model -analyze -mattr=+movbe | FileCheck %s --check-prefixes=ALL,MOVBE,X64
|
||||
; RUN: opt < %s -mtriple=i686-unknown-linux-gnu -cost-model -analyze | FileCheck %s --check-prefixes=ALL,NOMOVBE,X86
|
||||
; RUN: opt < %s -mtriple=i686-unknown-linux-gnu -cost-model -analyze -mattr=+movbe | FileCheck %s --check-prefixes=ALL,MOVBE,X86
|
||||
|
||||
declare i16 @llvm.bswap.i16(i16)
|
||||
declare i32 @llvm.bswap.i32(i32)
|
||||
declare i64 @llvm.bswap.i64(i64)
|
||||
declare i128 @llvm.bswap.i128(i128)
|
||||
|
||||
define i16 @var_load_bswap_i16(i16* %src) {
|
||||
; NOMOVBE-LABEL: 'var_load_bswap_i16'
|
||||
; NOMOVBE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %a = load i16, i16* %src, align 1
|
||||
; NOMOVBE-NEXT: Cost Model: Found an estimated cost of 10 for instruction: %bswap = call i16 @llvm.bswap.i16(i16 %a)
|
||||
; NOMOVBE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i16 %bswap
|
||||
;
|
||||
; MOVBE-LABEL: 'var_load_bswap_i16'
|
||||
; MOVBE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %a = load i16, i16* %src, align 1
|
||||
; MOVBE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call i16 @llvm.bswap.i16(i16 %a)
|
||||
; MOVBE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i16 %bswap
|
||||
;
|
||||
%a = load i16, i16* %src, align 1
|
||||
%bswap = call i16 @llvm.bswap.i16(i16 %a)
|
||||
|
||||
ret i16 %bswap
|
||||
}
|
||||
define i16 @var_load_bswap_i16_extrause(i16* %src, i16* %clobberdst) {
|
||||
; NOMOVBE-LABEL: 'var_load_bswap_i16_extrause'
|
||||
; NOMOVBE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %a = load i16, i16* %src, align 1
|
||||
; NOMOVBE-NEXT: Cost Model: Found an estimated cost of 10 for instruction: %bswap = call i16 @llvm.bswap.i16(i16 %a)
|
||||
; NOMOVBE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %a2 = shl i16 %a, 2
|
||||
; NOMOVBE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: store i16 %a2, i16* %clobberdst, align 1
|
||||
; NOMOVBE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i16 %bswap
|
||||
;
|
||||
; MOVBE-LABEL: 'var_load_bswap_i16_extrause'
|
||||
; MOVBE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %a = load i16, i16* %src, align 1
|
||||
; MOVBE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call i16 @llvm.bswap.i16(i16 %a)
|
||||
; MOVBE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %a2 = shl i16 %a, 2
|
||||
; MOVBE-NEXT: Cost Model: Found an estimated cost of 1 for instruction: store i16 %a2, i16* %clobberdst, align 1
|
||||
; MOVBE-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i16 %bswap
|
||||
;
|
||||
%a = load i16, i16* %src, align 1
|
||||
%bswap = call i16 @llvm.bswap.i16(i16 %a)
|
||||
|
||||
%a2 = shl i16 %a, 2 ; incur an extra use to the load
|
||||
store i16 %a2, i16* %clobberdst, align 1
|
||||
|
||||
ret i16 %bswap
|
||||
}
|
||||
|
||||
define i32 @var_load_bswap_i32(i32* %src) {
|
||||
; ALL-LABEL: 'var_load_bswap_i32'
|
||||
; ALL-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %a = load i32, i32* %src, align 1
|
||||
; ALL-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call i32 @llvm.bswap.i32(i32 %a)
|
||||
; ALL-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i32 %bswap
|
||||
;
|
||||
%a = load i32, i32* %src, align 1
|
||||
%bswap = call i32 @llvm.bswap.i32(i32 %a)
|
||||
|
||||
ret i32 %bswap
|
||||
}
|
||||
define i32 @var_load_bswap_i32_extrause(i32* %src, i32* %clobberdst) {
|
||||
; ALL-LABEL: 'var_load_bswap_i32_extrause'
|
||||
; ALL-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %a = load i32, i32* %src, align 1
|
||||
; ALL-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call i32 @llvm.bswap.i32(i32 %a)
|
||||
; ALL-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %a2 = shl i32 %a, 2
|
||||
; ALL-NEXT: Cost Model: Found an estimated cost of 1 for instruction: store i32 %a2, i32* %clobberdst, align 1
|
||||
; ALL-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i32 %bswap
|
||||
;
|
||||
%a = load i32, i32* %src, align 1
|
||||
%bswap = call i32 @llvm.bswap.i32(i32 %a)
|
||||
|
||||
%a2 = shl i32 %a, 2 ; incur an extra use to the load
|
||||
store i32 %a2, i32* %clobberdst, align 1
|
||||
|
||||
ret i32 %bswap
|
||||
}
|
||||
|
||||
define i64 @var_load_bswap_i64(i64* %src) {
|
||||
; X64-LABEL: 'var_load_bswap_i64'
|
||||
; X64-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %a = load i64, i64* %src, align 1
|
||||
; X64-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call i64 @llvm.bswap.i64(i64 %a)
|
||||
; X64-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i64 %bswap
|
||||
;
|
||||
; X86-LABEL: 'var_load_bswap_i64'
|
||||
; X86-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %a = load i64, i64* %src, align 1
|
||||
; X86-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %bswap = call i64 @llvm.bswap.i64(i64 %a)
|
||||
; X86-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i64 %bswap
|
||||
;
|
||||
%a = load i64, i64* %src, align 1
|
||||
%bswap = call i64 @llvm.bswap.i64(i64 %a)
|
||||
|
||||
ret i64 %bswap
|
||||
}
|
||||
define i64 @var_load_bswap_i64_extrause(i64* %src, i64* %clobberdst) {
|
||||
; X64-LABEL: 'var_load_bswap_i64_extrause'
|
||||
; X64-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %a = load i64, i64* %src, align 1
|
||||
; X64-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %bswap = call i64 @llvm.bswap.i64(i64 %a)
|
||||
; X64-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %a2 = shl i64 %a, 2
|
||||
; X64-NEXT: Cost Model: Found an estimated cost of 1 for instruction: store i64 %a2, i64* %clobberdst, align 1
|
||||
; X64-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i64 %bswap
|
||||
;
|
||||
; X86-LABEL: 'var_load_bswap_i64_extrause'
|
||||
; X86-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %a = load i64, i64* %src, align 1
|
||||
; X86-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %bswap = call i64 @llvm.bswap.i64(i64 %a)
|
||||
; X86-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %a2 = shl i64 %a, 2
|
||||
; X86-NEXT: Cost Model: Found an estimated cost of 2 for instruction: store i64 %a2, i64* %clobberdst, align 1
|
||||
; X86-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i64 %bswap
|
||||
;
|
||||
%a = load i64, i64* %src, align 1
|
||||
%bswap = call i64 @llvm.bswap.i64(i64 %a)
|
||||
|
||||
%a2 = shl i64 %a, 2 ; incur an extra use to the load
|
||||
store i64 %a2, i64* %clobberdst, align 1
|
||||
|
||||
ret i64 %bswap
|
||||
}
|
||||
|
||||
define i128 @var_load_bswap_i128(i128* %src) {
|
||||
; X64-LABEL: 'var_load_bswap_i128'
|
||||
; X64-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %a = load i128, i128* %src, align 1
|
||||
; X64-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %bswap = call i128 @llvm.bswap.i128(i128 %a)
|
||||
; X64-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i128 %bswap
|
||||
;
|
||||
; X86-LABEL: 'var_load_bswap_i128'
|
||||
; X86-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %a = load i128, i128* %src, align 1
|
||||
; X86-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %bswap = call i128 @llvm.bswap.i128(i128 %a)
|
||||
; X86-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i128 %bswap
|
||||
;
|
||||
%a = load i128, i128* %src, align 1
|
||||
%bswap = call i128 @llvm.bswap.i128(i128 %a)
|
||||
|
||||
ret i128 %bswap
|
||||
}
|
||||
define i128 @var_load_bswap_i128_extrause(i128* %src, i128* %clobberdst) {
|
||||
; X64-LABEL: 'var_load_bswap_i128_extrause'
|
||||
; X64-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %a = load i128, i128* %src, align 1
|
||||
; X64-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %bswap = call i128 @llvm.bswap.i128(i128 %a)
|
||||
; X64-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %a2 = shl i128 %a, 2
|
||||
; X64-NEXT: Cost Model: Found an estimated cost of 2 for instruction: store i128 %a2, i128* %clobberdst, align 1
|
||||
; X64-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i128 %bswap
|
||||
;
|
||||
; X86-LABEL: 'var_load_bswap_i128_extrause'
|
||||
; X86-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %a = load i128, i128* %src, align 1
|
||||
; X86-NEXT: Cost Model: Found an estimated cost of 8 for instruction: %bswap = call i128 @llvm.bswap.i128(i128 %a)
|
||||
; X86-NEXT: Cost Model: Found an estimated cost of 4 for instruction: %a2 = shl i128 %a, 2
|
||||
; X86-NEXT: Cost Model: Found an estimated cost of 4 for instruction: store i128 %a2, i128* %clobberdst, align 1
|
||||
; X86-NEXT: Cost Model: Found an estimated cost of 0 for instruction: ret i128 %bswap
|
||||
;
|
||||
%a = load i128, i128* %src, align 1
|
||||
%bswap = call i128 @llvm.bswap.i128(i128 %a)
|
||||
|
||||
%a2 = shl i128 %a, 2 ; incur an extra use to the load
|
||||
store i128 %a2, i128* %clobberdst, align 1
|
||||
|
||||
ret i128 %bswap
|
||||
}
|
||||
Loading…
x
Reference in New Issue
Block a user