a1d20506e7
Summary: This patch adds support for using unified memory in the case of regular maps that happen when a target region is offloaded to the device. For cases where only a single version of the data is required then the host address can be used. When variables need to be privatized in any way or globalized, then the copy to the device is still required for correctness. Reviewers: ABataev, jdoerfert, Hahnfeld, AlexEichenberger, caomhin, grokos Reviewed By: Hahnfeld Subscribers: mgorny, guansong, openmp-commits Tags: #openmp Differential Revision: https://reviews.llvm.org/D65001 llvm-svn: 368192
47 lines
2.0 KiB
C
47 lines
2.0 KiB
C
// RUN: %libomptarget-compile-aarch64-unknown-linux-gnu && env LIBOMPTARGET_DEBUG=1 %libomptarget-run-aarch64-unknown-linux-gnu 2>&1 | %fcheck-aarch64-unknown-linux-gnu -allow-empty -check-prefix=DEBUG
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// RUN: %libomptarget-compile-powerpc64-ibm-linux-gnu && env LIBOMPTARGET_DEBUG=1 %libomptarget-run-powerpc64-ibm-linux-gnu 2>&1 | %fcheck-powerpc64-ibm-linux-gnu -allow-empty -check-prefix=DEBUG
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// RUN: %libomptarget-compile-powerpc64le-ibm-linux-gnu && env LIBOMPTARGET_DEBUG=1 %libomptarget-run-powerpc64le-ibm-linux-gnu 2>&1 | %fcheck-powerpc64le-ibm-linux-gnu -allow-empty -check-prefix=DEBUG
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// RUN: %libomptarget-compile-x86_64-pc-linux-gnu && env LIBOMPTARGET_DEBUG=1 %libomptarget-run-x86_64-pc-linux-gnu 2>&1 | %fcheck-x86_64-pc-linux-gnu -allow-empty -check-prefix=DEBUG
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// REQUIRES: libomptarget-debug
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/*
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Test for the 'requires' clause check.
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When a target region is used, the requires flags are set in the
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runtime for the entire compilation unit. If the flags are set again,
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(for whatever reason) the set must be consistent with previously
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set values.
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*/
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#include <stdio.h>
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#include <omp.h>
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// ---------------------------------------------------------------------------
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// Various definitions copied from OpenMP RTL
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extern void __tgt_register_requires(int64_t);
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// End of definitions copied from OpenMP RTL.
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// ---------------------------------------------------------------------------
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void run_reg_requires() {
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// Before the target region is registered, the requires registers the status
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// of the requires clauses. Since there are no requires clauses in this file
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// the flags state can only be OMP_REQ_NONE i.e. 1.
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// This is the 2nd time this function is called so it should print the debug
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// info belonging to the check.
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__tgt_register_requires(1);
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__tgt_register_requires(1);
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// DEBUG: New requires flags 1 compatible with existing 1!
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}
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// ---------------------------------------------------------------------------
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int main() {
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run_reg_requires();
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// This also runs reg requires for the first time.
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#pragma omp target
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{}
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return 0;
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}
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