derek.holloway
7502bf64a4
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29 lines
1.2 KiB
LLVM
29 lines
1.2 KiB
LLVM
; RUN: llc -mtriple=hexagon < %s | FileCheck %s
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; Check for the immediate offset. It must be a multiple of 8.
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; CHECK: dcfetch({{.*}}+#8)
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; In 6.2 (which supports v4+ only), we generate indexed dcfetch in all cases
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; (unlike in 6.1, which supported v2, where dcfetch did not allow an immediate
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; offset).
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; For expression %2, where the offset is +9, the offset on dcfetch should be
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; a multiple of 8, and the offset of 0 is most likely (although not the only
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; possible one). Check for #0 anyways, if the test fails with a false
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; positive, the second check can be eliminated, or rewritten, and in the
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; meantime it can help catch real problems.
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; CHECK: dcfetch({{.*}}+#0)
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target datalayout = "e-p:32:32:32-i64:64:64-i32:32:32-i16:16:16-i1:32:32-f64:64:64-f32:32:32-v64:64:64-v32:32:32-a0:0-n16:32"
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target triple = "hexagon"
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define void @foo(ptr %addr) nounwind {
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entry:
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%addr.addr = alloca ptr, align 4
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store ptr %addr, ptr %addr.addr, align 4
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%0 = load ptr, ptr %addr.addr, align 4
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%1 = getelementptr i8, ptr %0, i32 8
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call void @llvm.prefetch(ptr %1, i32 0, i32 3, i32 1)
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%2 = getelementptr i8, ptr %0, i32 9
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call void @llvm.prefetch(ptr %2, i32 0, i32 3, i32 1)
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ret void
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}
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declare void @llvm.prefetch(ptr nocapture, i32, i32, i32) nounwind
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