5eb271880c
Currently variables appearing inside shared clause of OpenMP task construct are not visible inside lldb debugger. After the current patch, lldb is able to show the variable ``` * thread #1, name = 'a.out', stop reason = breakpoint 1.1 frame #0: 0x0000000000400934 a.out`.omp_task_entry. [inlined] .omp_outlined.(.global_tid.=0, .part_id.=0x000000000071f0d0, .privates.=0x000000000071f0e8, .copy_fn.=(a.out`.omp_task_privates_map. at testshared.cxx:8), .task_t.=0x000000000071f0c0, __context=0x000000000071f0f0) at testshared.cxx:10:34 7 else { 8 #pragma omp task shared(svar) firstprivate(n) 9 { -> 10 printf("Task svar = %d\n", svar); 11 printf("Task n = %d\n", n); 12 svar = fib(n - 1); 13 } (lldb) p svar (int) $0 = 9 ``` Reviewed By: djtodoro Differential Revision: https://reviews.llvm.org/D115510
56 lines
2.2 KiB
C
56 lines
2.2 KiB
C
// This testcase checks emission of debug info for variables
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// inside shared clause of task construct.
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// REQUIRES: x86_64-linux
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// RUN: %clang_cc1 -debug-info-kind=constructor -DSHARED -x c -verify -triple x86_64-pc-linux-gnu -fopenmp -emit-llvm %s -o - | FileCheck %s --check-prefix=CHECK
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// RUN: %clang_cc1 -debug-info-kind=constructor -x c -verify -triple x86_64-pc-linux-gnu -fopenmp -emit-llvm %s -o - | FileCheck %s --check-prefix=NEG
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// expected-no-diagnostics
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// CHECK-LABEL: define internal i32 @.omp_task_entry.
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// CHECK-DAG: [[CONTEXT:%[0-9]+]] = load %struct.anon*, %struct.anon** %__context.addr.i, align 8
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// CHECK-DAG: call void @llvm.dbg.declare(metadata %struct.anon* [[CONTEXT]], metadata [[SHARE2:![0-9]+]], metadata !DIExpression(DW_OP_deref))
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// CHECK-DAG: call void @llvm.dbg.declare(metadata %struct.anon* [[CONTEXT]], metadata [[SHARE3:![0-9]+]], metadata !DIExpression(DW_OP_plus_uconst, 8, DW_OP_deref))
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// CHECK-DAG: call void @llvm.dbg.declare(metadata %struct.anon* [[CONTEXT]], metadata [[SHARE1:![0-9]+]], metadata !DIExpression(DW_OP_plus_uconst, 16, DW_OP_deref))
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// CHECK-DAG: [[SHARE2]] = !DILocalVariable(name: "share2"
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// CHECK-DAG: [[SHARE3]] = !DILocalVariable(name: "share3"
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// CHECK-DAG: [[SHARE1]] = !DILocalVariable(name: "share1"
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// NEG-LABEL: define internal i32 @.omp_task_entry.
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// NEG: [[CONTEXT:%[0-9]+]] = load %struct.anon*, %struct.anon** %__context.addr.i, align 8
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// NEG-NOT: call void @llvm.dbg.declare(metadata %struct.anon* [[CONTEXT]], metadata {{![0-9]+}}, metadata !DIExpression(DW_OP_deref))
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extern int printf(const char *, ...);
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int foo(int n) {
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int share1 = 9, share2 = 11, share3 = 13, priv1, priv2, fpriv;
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fpriv = n + 4;
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if (n < 2)
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return n;
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else {
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#if SHARED
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#pragma omp task shared(share1, share2) private(priv1, priv2) firstprivate(fpriv) shared(share3)
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#else
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#pragma omp task private(priv1, priv2) firstprivate(fpriv)
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#endif
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{
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priv1 = n;
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priv2 = n + 2;
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share2 += share3;
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printf("share1 = %d, share2 = %d, share3 = %d\n", share1, share2, share3);
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share1 = priv1 + priv2 + fpriv + foo(n - 1) + share2 + share3;
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}
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#pragma omp taskwait
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return share1 + share2 + share3;
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}
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}
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int main() {
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int n = 10;
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printf("foo(%d) = %d\n", n, foo(n));
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return 0;
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}
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