derek.holloway
7502bf64a4
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35 lines
1.2 KiB
LLVM
35 lines
1.2 KiB
LLVM
; Check the volatile load/stores are not widened by HexagonLoadStoreWidening pass
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; RUN: llc -mtriple=hexagon -verify-machineinstrs < %s | FileCheck %s
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target triple = "hexagon"
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; CHECK-LABEL: volatile_loads:
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; CHECK: r{{[0-9]+}} = memw(r{{[0-9]+}}+#0)
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; CHECK: r{{[0-9]+}} = memw(r{{[0-9]+}}+#4)
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; CHECK-NOT: r{{[0-9]+}} = memd(r{{[0-9]+}}+#0)
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define dso_local void @volatile_loads(ptr noundef %dst, ptr noundef %src0) local_unnamed_addr {
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entry:
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%0 = load volatile i32, ptr %src0, align 8
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%src1 = getelementptr i8, ptr %src0, i32 4
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%conv = zext i32 %0 to i64
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%1 = load volatile i32, ptr %src1, align 4
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%conv4 = zext i32 %1 to i64
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%shl = shl nuw i64 %conv4, 32
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%or = or disjoint i64 %shl, %conv
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store i64 %or, ptr %dst, align 1
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ret void
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}
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; CHECK-LABEL: volatile_stores:
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; CHECK: memw(r{{[0-9]+}}+#0) = r{{[0-9]+}}
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; CHECK: memw(r{{[0-9]+}}+#4) = r{{[0-9]+}}
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; CHECK-NOT: memd(r{{[0-9]+}}+#0) = r{{[0-9]+}}
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define dso_local void @volatile_stores(ptr noundef %dst0, i32 %a, i32 %b) local_unnamed_addr {
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entry:
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store volatile i32 %a, ptr %dst0, align 8
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%dst1 = getelementptr i8, ptr %dst0, i32 4
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store volatile i32 %b, ptr %dst1, align 4
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ret void
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}
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