144 lines
5.0 KiB
LLVM
144 lines
5.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=avx | FileCheck %s --check-prefix=X32
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=avx | FileCheck %s --check-prefix=X64
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define void @big_nonzero_16_bytes(ptr nocapture %a) {
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; X32-LABEL: big_nonzero_16_bytes:
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; X32: # %bb.0:
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; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X32-NEXT: vmovaps {{.*#+}} xmm0 = [1,2,3,4]
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; X32-NEXT: vmovups %xmm0, (%eax)
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; X32-NEXT: retl
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;
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; X64-LABEL: big_nonzero_16_bytes:
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; X64: # %bb.0:
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; X64-NEXT: vmovaps {{.*#+}} xmm0 = [1,2,3,4]
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; X64-NEXT: vmovups %xmm0, (%rdi)
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; X64-NEXT: retq
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%arrayidx1 = getelementptr inbounds i32, ptr %a, i64 1
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%arrayidx2 = getelementptr inbounds i32, ptr %a, i64 2
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%arrayidx3 = getelementptr inbounds i32, ptr %a, i64 3
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store i32 1, ptr %a, align 4
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store i32 2, ptr %arrayidx1, align 4
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store i32 3, ptr %arrayidx2, align 4
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store i32 4, ptr %arrayidx3, align 4
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ret void
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}
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; TODO: We assumed that two 64-bit stores were better than 1 vector load and 1 vector store.
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; But if the 64-bit constants can't be represented as sign-extended 32-bit constants, then
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; it takes extra instructions to do this in scalar.
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define void @big_nonzero_16_bytes_big64bit_constants(ptr nocapture %a) {
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; X32-LABEL: big_nonzero_16_bytes_big64bit_constants:
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; X32: # %bb.0:
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; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X32-NEXT: vmovaps {{.*#+}} xmm0 = [1,1,1,3]
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; X32-NEXT: vmovups %xmm0, (%eax)
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; X32-NEXT: retl
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;
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; X64-LABEL: big_nonzero_16_bytes_big64bit_constants:
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; X64: # %bb.0:
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; X64-NEXT: movabsq $4294967297, %rax # imm = 0x100000001
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; X64-NEXT: movq %rax, (%rdi)
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; X64-NEXT: movabsq $12884901889, %rax # imm = 0x300000001
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; X64-NEXT: movq %rax, 8(%rdi)
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; X64-NEXT: retq
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%arrayidx1 = getelementptr inbounds i64, ptr %a, i64 1
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store i64 4294967297, ptr %a
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store i64 12884901889, ptr %arrayidx1
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ret void
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}
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; Splats may be an opportunity to use a broadcast op.
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define void @big_nonzero_32_bytes_splat(ptr nocapture %a) {
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; X32-LABEL: big_nonzero_32_bytes_splat:
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; X32: # %bb.0:
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; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X32-NEXT: vmovaps {{.*#+}} ymm0 = [42,42,42,42,42,42,42,42]
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; X32-NEXT: vmovups %ymm0, (%eax)
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; X32-NEXT: vzeroupper
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; X32-NEXT: retl
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;
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; X64-LABEL: big_nonzero_32_bytes_splat:
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; X64: # %bb.0:
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; X64-NEXT: vmovaps {{.*#+}} ymm0 = [42,42,42,42,42,42,42,42]
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; X64-NEXT: vmovups %ymm0, (%rdi)
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; X64-NEXT: vzeroupper
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; X64-NEXT: retq
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%arrayidx1 = getelementptr inbounds i32, ptr %a, i64 1
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%arrayidx2 = getelementptr inbounds i32, ptr %a, i64 2
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%arrayidx3 = getelementptr inbounds i32, ptr %a, i64 3
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%arrayidx4 = getelementptr inbounds i32, ptr %a, i64 4
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%arrayidx5 = getelementptr inbounds i32, ptr %a, i64 5
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%arrayidx6 = getelementptr inbounds i32, ptr %a, i64 6
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%arrayidx7 = getelementptr inbounds i32, ptr %a, i64 7
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store i32 42, ptr %a, align 4
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store i32 42, ptr %arrayidx1, align 4
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store i32 42, ptr %arrayidx2, align 4
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store i32 42, ptr %arrayidx3, align 4
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store i32 42, ptr %arrayidx4, align 4
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store i32 42, ptr %arrayidx5, align 4
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store i32 42, ptr %arrayidx6, align 4
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store i32 42, ptr %arrayidx7, align 4
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ret void
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}
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; Verify that we choose the best-sized store(s) for each chunk.
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define void @big_nonzero_63_bytes(ptr nocapture %a) {
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; X32-LABEL: big_nonzero_63_bytes:
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; X32: # %bb.0:
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; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
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; X32-NEXT: vmovaps {{.*#+}} ymm0 = [1,0,2,0,3,0,4,0]
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; X32-NEXT: vmovups %ymm0, (%eax)
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; X32-NEXT: vmovaps {{.*#+}} xmm0 = [5,0,6,0]
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; X32-NEXT: vmovups %xmm0, 32(%eax)
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; X32-NEXT: movl $0, 52(%eax)
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; X32-NEXT: movl $7, 48(%eax)
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; X32-NEXT: movl $8, 56(%eax)
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; X32-NEXT: movw $9, 60(%eax)
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; X32-NEXT: movb $10, 62(%eax)
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; X32-NEXT: vzeroupper
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; X32-NEXT: retl
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;
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; X64-LABEL: big_nonzero_63_bytes:
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; X64: # %bb.0:
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; X64-NEXT: vmovaps {{.*#+}} ymm0 = [1,2,3,4]
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; X64-NEXT: vmovups %ymm0, (%rdi)
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; X64-NEXT: movq $5, 32(%rdi)
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; X64-NEXT: movq $6, 40(%rdi)
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; X64-NEXT: movq $7, 48(%rdi)
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; X64-NEXT: movl $8, 56(%rdi)
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; X64-NEXT: movw $9, 60(%rdi)
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; X64-NEXT: movb $10, 62(%rdi)
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; X64-NEXT: vzeroupper
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; X64-NEXT: retq
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%arrayidx8 = getelementptr inbounds i64, ptr %a, i64 1
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%arrayidx16 = getelementptr inbounds i64, ptr %a, i64 2
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%arrayidx24 = getelementptr inbounds i64, ptr %a, i64 3
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%arrayidx32 = getelementptr inbounds i64, ptr %a, i64 4
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%arrayidx40 = getelementptr inbounds i64, ptr %a, i64 5
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%arrayidx48 = getelementptr inbounds i64, ptr %a, i64 6
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%arrayidx56 = getelementptr inbounds i32, ptr %a, i64 14
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%arrayidx60 = getelementptr inbounds i16, ptr %a, i64 30
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%arrayidx62 = getelementptr inbounds i8, ptr %a, i64 62
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store i64 1, ptr %a
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store i64 2, ptr %arrayidx8
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store i64 3, ptr %arrayidx16
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store i64 4, ptr %arrayidx24
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store i64 5, ptr %arrayidx32
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store i64 6, ptr %arrayidx40
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store i64 7, ptr %arrayidx48
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store i32 8, ptr %arrayidx56
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store i16 9, ptr %arrayidx60
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store i8 10, ptr %arrayidx62
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ret void
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}
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