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https://github.com/Gericom/teak-llvm.git
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66cdbb47d2
Summary: This patch adds support for the registration of the requires directives with the runtime. Each requires directive clause will enable a particular flag to be set. The set of flags is passed to the runtime to be checked for compatibility with other such flags coming from other object files. The registration function is called whenever OpenMP is present even if a requires directive is not present. This helps detect cases in which requires directives are used inconsistently. Reviewers: ABataev, AlexEichenberger, caomhin Reviewed By: ABataev, AlexEichenberger Subscribers: jholewinski, guansong, jfb, jdoerfert, cfe-commits Tags: #clang Differential Revision: https://reviews.llvm.org/D60568 llvm-svn: 361298
54 lines
2.8 KiB
C++
54 lines
2.8 KiB
C++
// Test for offload registration code for two targets
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// RUN: %clang_cc1 -verify -fopenmp -x c -triple x86_64-unknown-linux-gnu -fopenmp-targets=x86_64-pc-linux-gnu,powerpc64le-ibm-linux-gnu -emit-llvm %s -o - | FileCheck %s
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// expected-no-diagnostics
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void foo() {
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#pragma omp target
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{}
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}
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// CHECK-DAG: [[ENTTY:%.+]] = type { i8*, i8*, i[[SZ:32|64]], i32, i32 }
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// CHECK-DAG: [[DEVTY:%.+]] = type { i8*, i8*, [[ENTTY]]*, [[ENTTY]]* }
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// CHECK-DAG: [[DSCTY:%.+]] = type { i32, [[DEVTY]]*, [[ENTTY]]*, [[ENTTY]]* }
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// Comdat key for the offload registration code. Should have sorted offload
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// target triples encoded into the name.
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// CHECK-DAG: $[[REGFN:\.omp_offloading\..+\.powerpc64le-ibm-linux-gnu\.x86_64-pc-linux-gnu+]] = comdat any
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// Check if offloading descriptor is created.
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// CHECK: [[ENTBEGIN:@.+]] = external constant [[ENTTY]]
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// CHECK: [[ENTEND:@.+]] = external constant [[ENTTY]]
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// CHECK: [[DEV1BEGIN:@.+]] = extern_weak constant i8
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// CHECK: [[DEV1END:@.+]] = extern_weak constant i8
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// CHECK: [[DEV2BEGIN:@.+]] = extern_weak constant i8
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// CHECK: [[DEV2END:@.+]] = extern_weak constant i8
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// CHECK: [[IMAGES:@.+]] = internal unnamed_addr constant [2 x [[DEVTY]]] [{{.+}} { i8* [[DEV1BEGIN]], i8* [[DEV1END]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, {{.+}} { i8* [[DEV2BEGIN]], i8* [[DEV2END]], [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }], comdat($[[REGFN]])
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// CHECK: [[DESC:@.+]] = internal constant [[DSCTY]] { i32 2, [[DEVTY]]* getelementptr inbounds ([2 x [[DEVTY]]], [2 x [[DEVTY]]]* [[IMAGES]], i32 0, i32 0), [[ENTTY]]* [[ENTBEGIN]], [[ENTTY]]* [[ENTEND]] }, comdat($[[REGFN]])
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// Check target registration is registered as a Ctor.
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// CHECK: appending global [2 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @.omp_offloading.requires_reg, i8* null }, { i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
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// Check presence of foo() and the outlined target region
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// CHECK: define void [[FOO:@.+]]()
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// CHECK: define internal void [[OUTLINEDTARGET:@.+]]()
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// Check registration and unregistration code.
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// CHECK: define internal void @.omp_offloading.requires_reg()
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// CHECK: call void @__tgt_register_requires(i64 1)
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// CHECK: ret void
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// CHECK: define internal void @[[UNREGFN:.+]](i8*)
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// CHECK-SAME: comdat($[[REGFN]]) {
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// CHECK: call i32 @__tgt_unregister_lib([[DSCTY]]* [[DESC]])
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// CHECK: ret void
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// CHECK: declare i32 @__tgt_unregister_lib([[DSCTY]]*)
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// CHECK: define linkonce hidden void @[[REGFN]]()
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// CHECK-SAME: comdat {
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// CHECK: call i32 @__tgt_register_lib([[DSCTY]]* [[DESC]])
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// CHECK: call i32 @__cxa_atexit(void (i8*)* @[[UNREGFN]], i8* bitcast ([[DSCTY]]* [[DESC]] to i8*),
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// CHECK: ret void
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// CHECK: declare i32 @__tgt_register_lib([[DSCTY]]*)
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