derek.holloway
7502bf64a4
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44 lines
1.2 KiB
LLVM
44 lines
1.2 KiB
LLVM
; RUN: llc -mtriple=hexagon < %s | FileCheck %s
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; RUN: llc -mtriple=hexagon -disable-load-widen < %s | FileCheck %s --check-prefix=CHECK-DISABLE
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%struct.node32 = type { ptr, ptr }
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%struct.node16_4 = type { i16, i16, i16, i16 }
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define void @test1(ptr nocapture %node) nounwind {
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entry:
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; There should be a memd and not two memw
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; CHECK-LABEL: test1
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; CHECK: memd
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%0 = load ptr, ptr %node, align 8
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%cgep = getelementptr inbounds %struct.node32, ptr %node, i32 0, i32 1
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%1 = load ptr, ptr %cgep, align 4
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store ptr %0, ptr %1, align 8
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ret void
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}
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define void @test2(ptr nocapture %node) nounwind {
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entry:
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; Same as test1 but with load widening disabled.
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; CHECK-DISABLE-LABEL: test2
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; CHECK-DISABLE: memw
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; CHECK-DISABLE: memw
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%0 = load ptr, ptr %node, align 8
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%cgep = getelementptr inbounds %struct.node32, ptr %node, i32 0, i32 1
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%1 = load ptr, ptr %cgep, align 4
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store ptr %0, ptr %1, align 8
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ret void
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}
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define void @test3(ptr nocapture %node) nounwind {
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entry:
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; No memd because first load is not 8 byte aligned
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; CHECK-LABEL: test3
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; CHECK-NOT: memd
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%0 = load ptr, ptr %node, align 4
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%cgep = getelementptr inbounds %struct.node32, ptr %node, i32 0, i32 1
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%1 = load ptr, ptr %cgep, align 4
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store ptr %0, ptr %1, align 8
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ret void
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}
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