forked from OSchip/llvm-project
19 lines
784 B
LLVM
19 lines
784 B
LLVM
; RUN: opt < %s -S -nvptx-atomic-lower | FileCheck %s
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; This test ensures that there is a legal way for ptx to lower atomics
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; on local memory. Here, we demonstrate this by lowering them to simple
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; load and stores.
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v16:16:16-v32:32:32-v64:64:64-v128:128:128-n16:32:64"
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target triple = "nvptx64-unknown-unknown"
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define double @kernel(double addrspace(5)* %ptr, double %val) {
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%res = atomicrmw fadd double addrspace(5)* %ptr, double %val monotonic, align 8
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ret double %res
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; CHECK: %1 = load double, double addrspace(5)* %ptr, align 8
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; CHECK-NEXT: %2 = fadd double %1, %val
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; CHECK-NEXT: store double %2, double addrspace(5)* %ptr, align 8
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; CHECK-NEXT: ret double %1
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}
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