derek.holloway
7502bf64a4
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35 lines
1.3 KiB
LLVM
35 lines
1.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=core2 | FileCheck %s
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declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture, i64, i1) nounwind
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declare void @llvm.memcpy.inline.p0.p0.i64(ptr nocapture, ptr nocapture, i64, i1) nounwind
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define void @test1(ptr %a, ptr %b) nounwind {
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; CHECK-LABEL: test1:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movq (%rsi), %rax
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; CHECK-NEXT: movq %rax, (%rdi)
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; CHECK-NEXT: retq
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tail call void @llvm.memcpy.inline.p0.p0.i64(ptr %a, ptr %b, i64 8, i1 0 )
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ret void
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}
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define void @regular_memcpy_calls_external_function(ptr %a, ptr %b) nounwind {
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; CHECK-LABEL: regular_memcpy_calls_external_function:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movl $128, %edx
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; CHECK-NEXT: jmp memcpy@PLT # TAILCALL
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tail call void @llvm.memcpy.p0.p0.i64(ptr %a, ptr %b, i64 128, i1 0 )
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ret void
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}
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define void @inlined_copy_doesnt_call_external_function(ptr %a, ptr %b) nounwind {
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; CHECK-LABEL: inlined_copy_doesnt_call_external_function:
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; CHECK: # %bb.0:
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; CHECK-NEXT: movl $128, %ecx
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; CHECK-NEXT: rep;movsb (%rsi), %es:(%rdi)
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; CHECK-NEXT: retq
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tail call void @llvm.memcpy.inline.p0.p0.i64(ptr %a, ptr %b, i64 128, i1 0 )
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ret void
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}
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