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29f94c7201
This commit starts with a "git mv ARM64 AArch64" and continues out from there, renaming the C++ classes, intrinsics, and other target-local objects for consistency. "ARM64" test directories are also moved, and tests that began their life in ARM64 use an arm64 triple, those from AArch64 use an aarch64 triple. Both should be equivalent though. This finishes the AArch64 merge, and everyone should feel free to continue committing as normal now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209577 91177308-0d34-0410-b5e6-96231b3b80d8
27 lines
839 B
LLVM
27 lines
839 B
LLVM
; RUN: llc -mtriple=aarch64-none-linux-gnu -verify-machineinstrs < %s | FileCheck %s
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define i32 @foo(i32* %var, i1 %cond) {
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; CHECK-LABEL: foo:
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br i1 %cond, label %atomic_ver, label %simple_ver
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simple_ver:
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%oldval = load i32* %var
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%newval = add nsw i32 %oldval, -1
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store i32 %newval, i32* %var
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br label %somewhere
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atomic_ver:
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fence seq_cst
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%val = atomicrmw add i32* %var, i32 -1 monotonic
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fence seq_cst
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br label %somewhere
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; CHECK: dmb
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; CHECK: ldxr
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; CHECK: dmb
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; The key point here is that the second dmb isn't immediately followed by the
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; simple_ver basic block, which LLVM attempted to do when DMB had been marked
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; with isBarrier. For now, look for something that looks like "somewhere".
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; CHECK-NEXT: mov
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somewhere:
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%combined = phi i32 [ %val, %atomic_ver ], [ %newval, %simple_ver]
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ret i32 %combined
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}
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