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39 lines
2.0 KiB
LLVM
39 lines
2.0 KiB
LLVM
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; RUN: llc < %s -mtriple=thumbv7-apple-ios5.0.0 | FileCheck %s
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; rdar://10464621
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; DAG combine increases loads from packed types. ARM load / store optimizer then
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; combined them into a ldm which causes runtime exception.
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%struct.InformationBlock = type <{ i32, %struct.FlagBits, %struct.FlagBits }>
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%struct.FlagBits = type <{ [4 x i32] }>
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@infoBlock = external global %struct.InformationBlock
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define hidden void @foo() {
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; CHECK: foo:
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; CHECK: ldr.w
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; CHECK: ldr.w
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; CHECK-NOT: ldm
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entry:
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%tmp13 = load i32* getelementptr inbounds (%struct.InformationBlock* @infoBlock, i32 0, i32 1, i32 0, i32 0), align 1
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%tmp15 = load i32* getelementptr inbounds (%struct.InformationBlock* @infoBlock, i32 0, i32 1, i32 0, i32 1), align 1
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%tmp17 = load i32* getelementptr inbounds (%struct.InformationBlock* @infoBlock, i32 0, i32 1, i32 0, i32 2), align 1
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%tmp19 = load i32* getelementptr inbounds (%struct.InformationBlock* @infoBlock, i32 0, i32 1, i32 0, i32 3), align 1
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%tmp = load i32* getelementptr inbounds (%struct.InformationBlock* @infoBlock, i32 0, i32 2, i32 0, i32 0), align 1
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%tmp3 = load i32* getelementptr inbounds (%struct.InformationBlock* @infoBlock, i32 0, i32 2, i32 0, i32 1), align 1
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%tmp4 = load i32* getelementptr inbounds (%struct.InformationBlock* @infoBlock, i32 0, i32 2, i32 0, i32 2), align 1
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%tmp5 = load i32* getelementptr inbounds (%struct.InformationBlock* @infoBlock, i32 0, i32 2, i32 0, i32 3), align 1
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%insert21 = insertvalue [4 x i32] undef, i32 %tmp13, 0
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%insert23 = insertvalue [4 x i32] %insert21, i32 %tmp15, 1
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%insert25 = insertvalue [4 x i32] %insert23, i32 %tmp17, 2
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%insert27 = insertvalue [4 x i32] %insert25, i32 %tmp19, 3
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%insert = insertvalue [4 x i32] undef, i32 %tmp, 0
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%insert7 = insertvalue [4 x i32] %insert, i32 %tmp3, 1
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%insert9 = insertvalue [4 x i32] %insert7, i32 %tmp4, 2
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%insert11 = insertvalue [4 x i32] %insert9, i32 %tmp5, 3
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tail call void @bar([4 x i32] %insert27, [4 x i32] %insert11)
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ret void
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}
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declare void @bar([4 x i32], [4 x i32])
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