41 lines
1.6 KiB
LLVM
41 lines
1.6 KiB
LLVM
; RUN: opt -S -passes=loop-vectorize,instcombine -force-vector-width=4 -force-vector-interleave=1 -enable-interleaved-mem-accesses=true -runtime-memory-check-threshold=24 --pass-remarks=loop-vectorize < %s | FileCheck %s
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target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128"
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; This only tests that asking for remarks doesn't lead to compiler crashing
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; (or timing out). We just check for output. To be sure, we also check we didn't
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; vectorize.
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; CHECK-LABEL: @atomicLoadsBothWriteAndReadMem
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; CHECK-NOT: <{{[0-9]+}} x i8>
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%"struct.std::__atomic_base" = type { i32 }
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%"struct.std::atomic" = type { %"struct.std::__atomic_base" }
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%union.anon = type { i64 }
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%MyStruct = type { i32, %"struct.std::atomic", %union.anon }
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define void @atomicLoadsBothWriteAndReadMem(ptr %a, ptr %b, ptr %lim) {
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entry:
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br label %loop
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loop:
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%0 = phi ptr [ %a, %entry ], [ %ainc, %loop ]
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%1 = phi ptr [ %b, %entry ], [ %binc, %loop ]
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%2 = load i32, ptr %1, align 8
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store i32 %2, ptr %0, align 8
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%3 = getelementptr inbounds %MyStruct, ptr %1, i64 0, i32 1, i32 0, i32 0
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%4 = load atomic i32, ptr %3 monotonic, align 4
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%5 = getelementptr inbounds %MyStruct, ptr %0, i64 0, i32 1, i32 0, i32 0
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store atomic i32 %4, ptr %5 monotonic, align 4
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%6 = getelementptr inbounds %MyStruct, ptr %1, i64 0, i32 2, i32 0
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%7 = getelementptr inbounds %MyStruct, ptr %0, i64 0, i32 2, i32 0
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%8 = load i64, ptr %6, align 8
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store i64 %8, ptr %7, align 8
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%binc = getelementptr inbounds %MyStruct, ptr %1, i64 1
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%ainc = getelementptr inbounds %MyStruct, ptr %0, i64 1
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%cond = icmp eq ptr %binc, %lim
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br i1 %cond, label %exit, label %loop
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exit:
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ret void
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}
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