6b78526b1b
Changes the remark to emit on the function call that captures the globalized variable instead of the globalized variable itself. The user should be able to see which variable it was in the argument list of the function. Reviewed By: jdoerfert Differential Revision: https://reviews.llvm.org/D106980
55 lines
2.3 KiB
LLVM
55 lines
2.3 KiB
LLVM
; RUN: opt -passes=openmp-opt -pass-remarks-missed=openmp-opt -disable-output < %s 2>&1 | FileCheck %s
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; ModuleID = 'declare_target_codegen_globalization.cpp'
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source_filename = "declare_target_codegen_globalization.cpp"
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target datalayout = "e-i64:64-i128:128-v16:16-v32:32-n16:32:64"
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target triple = "nvptx64"
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; CHECK: remark: globalization_remarks.c:5:7: Could not move globalized variable to the stack. Variable is potentially captured in call. Mark parameter as `__attribute__((noescape))` to override.
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; CHECK: remark: globalization_remarks.c:5:7: Found thread data sharing on the GPU. Expect degraded performance due to data globalization.
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%struct.ident_t = type { i32, i32, i32, i32, i8* }
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@S = external local_unnamed_addr global i8*
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define void @foo() {
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entry:
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%c = call i32 @__kmpc_target_init(%struct.ident_t* null, i1 false, i1 true, i1 true)
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%0 = call i8* @__kmpc_alloc_shared(i64 4), !dbg !10
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%x_on_stack = bitcast i8* %0 to i32*
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%1 = bitcast i32* %x_on_stack to i8*
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call void @share(i8* %1), !dbg !10
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call void @__kmpc_free_shared(i8* %0)
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call void @__kmpc_target_deinit(%struct.ident_t* null, i1 false, i1 true)
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ret void
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}
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define internal void @share(i8* %x) {
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entry:
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store i8* %x, i8** @S
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ret void
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}
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declare i8* @__kmpc_alloc_shared(i64)
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declare void @__kmpc_free_shared(i8* nocapture)
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declare i32 @__kmpc_target_init(%struct.ident_t*, i1, i1, i1);
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declare void @__kmpc_target_deinit(%struct.ident_t*, i1, i1)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5, !6}
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!nvvm.annotations = !{!7, !8}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 12.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
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!1 = !DIFile(filename: "globalization_remarks.c", directory: "/tmp/globalization_remarks.c")
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!2 = !{}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!4 = !{i32 1, !"wchar_size", i32 4}
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!5 = !{i32 7, !"openmp", i32 50}
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!6 = !{i32 7, !"openmp-device", i32 50}
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!7 = !{void ()* @foo, !"kernel", i32 1}
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!8 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !9, scopeLine: 1, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
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!9 = !DISubroutineType(types: !2)
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!10 = !DILocation(line: 5, column: 7, scope: !8)
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