26 lines
1.2 KiB
LLVM
26 lines
1.2 KiB
LLVM
; RUN: llc -mtriple=mipsel-linux-gnu -O3 -relocation-model=pic < %s | FileCheck %s
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; Test that a load comes after a store to the same memory location when passing
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; a byVal parameter to a function which has a fastcc function call
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%struct.str = type { i32, i32, [3 x ptr] }
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declare fastcc void @_Z1F3str(ptr noalias nocapture sret(%struct.str) %agg.result, ptr byval(%struct.str) nocapture readonly align 4 %s)
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define i32 @_Z1g3str(ptr byval(%struct.str) nocapture readonly align 4 %s) {
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; CHECK-LABEL: _Z1g3str:
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; CHECK: sw $7, [[OFFSET:[0-9]+]]($sp)
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; CHECK: lw ${{[0-9]+}}, [[OFFSET]]($sp)
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entry:
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%ref.tmp = alloca %struct.str, align 4
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call void @llvm.lifetime.start.p0(i64 20, ptr nonnull %ref.tmp)
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call fastcc void @_Z1F3str(ptr nonnull sret(%struct.str) %ref.tmp, ptr byval(%struct.str) nonnull align 4 %s)
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%cl.sroa.3.0..sroa_idx2 = getelementptr inbounds %struct.str, ptr %ref.tmp, i32 0, i32 1
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%cl.sroa.3.0.copyload = load i32, ptr %cl.sroa.3.0..sroa_idx2, align 4
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call void @llvm.lifetime.end.p0(i64 20, ptr nonnull %ref.tmp)
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ret i32 %cl.sroa.3.0.copyload
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}
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declare void @llvm.lifetime.start.p0(i64, ptr nocapture)
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declare void @llvm.lifetime.end.p0(i64, ptr nocapture)
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