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Encoding offload target triples onto comdat group key for offload initialization code guarantees that it will be executed once per each unique combination of offload targets. Differential Revision: https://reviews.llvm.org/D50218 llvm-svn: 338916
50 lines
2.5 KiB
C++
50 lines
2.5 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($[[REGFN]])
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// Check target registration is registered as a Ctor.
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// CHECK: appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 0, void ()* @[[REGFN]], i8* bitcast (void ()* @[[REGFN]] to i8*) }]
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// Check presence of foo() and the outlined target region
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// CHECK: define void [[FOO:@.+]]()
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// CHECK: define internal void [[OUTLINEDTARGET:@.+]]()
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// Check registration and unregistration code.
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// CHECK: define internal void @[[UNREGFN:.+]](i8*)
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// CHECK-SAME: comdat($[[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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