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17 lines
581 B
LLVM
17 lines
581 B
LLVM
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; RUN: llc < %s -march=arm -mcpu=cortex-a8 | FileCheck %s
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; Check that memcpy gets lowered to ldm/stm, at least in this very smple case.
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%struct.Foo = type { i32, i32, i32, i32 }
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define void @_Z10CopyStructP3FooS0_(%struct.Foo* nocapture %a, %struct.Foo* nocapture %b) nounwind {
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entry:
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;CHECK: ldm
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;CHECK: stm
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%0 = bitcast %struct.Foo* %a to i8*
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%1 = bitcast %struct.Foo* %b to i8*
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tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* %0, i8* %1, i32 16, i32 4, i1 false)
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ret void
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}
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declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind
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