33 lines
1.5 KiB
LLVM
33 lines
1.5 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=x86_64-linux-gnu -x86-use-fsrm-for-memcpy -mattr=-fsrm < %s -o - | FileCheck %s --check-prefix=NOFSRM
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; RUN: llc -mtriple=x86_64-linux-gnu -x86-use-fsrm-for-memcpy -mattr=+fsrm < %s -o - | FileCheck %s --check-prefix=FSRM
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; RUN: llc -mtriple=x86_64-linux-gnu -x86-use-fsrm-for-memcpy -mcpu=haswell < %s | FileCheck %s --check-prefix=NOFSRM
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; RUN: llc -mtriple=x86_64-linux-gnu -x86-use-fsrm-for-memcpy -mcpu=icelake-client < %s | FileCheck %s --check-prefix=FSRM
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; RUN: llc -mtriple=x86_64-linux-gnu -x86-use-fsrm-for-memcpy -mcpu=icelake-server < %s | FileCheck %s --check-prefix=FSRM
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; RUN: llc -mtriple=x86_64-linux-gnu -x86-use-fsrm-for-memcpy -mcpu=znver3 < %s | FileCheck %s --check-prefix=FSRM
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declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i1) nounwind
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define void @test1(i8* %a, i8* %b, i64 %s) nounwind {
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; NOFSRM-LABEL: test1
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; NOFSRM: # %bb.0:
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; NOFSRM: jmp memcpy
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;
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; FSRM-LABEL: test1
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; FSRM: # %bb.0:
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; FSRM-NEXT: movq %rdx, %rcx
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; FSRM-NEXT: rep;movsb (%rsi), %es:(%rdi)
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; FSRM-NEXT: retq
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tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* %b, i64 %s, i1 0)
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ret void
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}
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; Check that we don't crash due to a memcpy size type mismatch error ("Cannot
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; emit physreg copy instruction") in X86InstrInfo::copyPhysReg.
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%struct = type { [4096 x i8] }
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declare void @foo(%struct* byval(%struct))
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define void @test2(%struct* %x) {
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call void @foo(%struct* byval(%struct) %x)
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ret void
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}
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