43c1c59f73
With this patch we track aligned barriers in AAExecutionDomain and also delete unnecessary barriers there. This allows us to eliminate barriers across blocks, across functions, and in the presence of complex accesses that do not force a barrier. Further, we can use the collected information to enable store-load forwarding in a threaded environment (follow up patch). Differential Revision: https://reviews.llvm.org/D140463
65 lines
2.7 KiB
LLVM
65 lines
2.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --scrub-attributes
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; RUN: opt -passes=openmp-opt-cgscc -S < %s | FileCheck %s
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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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%struct.ident_t = type { i32, i32, i32, i32, ptr }
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@0 = private unnamed_addr constant [23 x i8] c";unknown;unknown;0;0;;\00", align 1
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@1 = private unnamed_addr constant %struct.ident_t { i32 0, i32 2, i32 0, i32 0, ptr @0 }, align 8
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@2 = private unnamed_addr constant %struct.ident_t { i32 0, i32 2, i32 1, i32 0, ptr @0 }, align 8
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@__omp_offloading_50_a3e09bf8_foo_l2_exec_mode = weak constant i8 0
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@llvm.compiler.used = appending global [1 x ptr] [ptr @__omp_offloading_50_a3e09bf8_foo_l2_exec_mode], section "llvm.metadata"
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declare void @use(i32)
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define weak void @__omp_offloading_50_a3e09bf8_foo_l2() #0 {
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; CHECK-LABEL: define {{[^@]+}}@__omp_offloading_50_a3e09bf8_foo_l2
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; CHECK-SAME: () #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = call i32 @__kmpc_target_init(ptr @[[GLOB1:[0-9]+]], i8 2, i1 false)
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; CHECK-NEXT: [[TMP1:%.*]] = call i32 @__kmpc_global_thread_num(ptr @[[GLOB2:[0-9]+]])
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; CHECK-NEXT: [[EXEC_USER_CODE:%.*]] = icmp eq i32 [[TMP0]], -1
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; CHECK-NEXT: br i1 [[EXEC_USER_CODE]], label [[USER_CODE_ENTRY:%.*]], label [[WORKER_EXIT:%.*]]
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; CHECK: user_code.entry:
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; CHECK-NEXT: call void @__kmpc_target_deinit(ptr @[[GLOB1]], i8 2)
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; CHECK-NEXT: ret void
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; CHECK: worker.exit:
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; CHECK-NEXT: ret void
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;
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entry:
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%captured_vars_addrs = alloca [0 x ptr], align 8
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%0 = call i32 @__kmpc_target_init(ptr @1, i8 2, i1 false)
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%exec_user_code = icmp eq i32 %0, -1
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br i1 %exec_user_code, label %user_code.entry, label %worker.exit
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user_code.entry: ; preds = %entry
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%1 = call i32 @__kmpc_global_thread_num(ptr @2)
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%2 = call i32 @__kmpc_global_thread_num(ptr @2)
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call void @__kmpc_target_deinit(ptr @1, i8 2)
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ret void
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worker.exit: ; preds = %entry
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ret void
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}
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declare i32 @__kmpc_target_init(ptr, i8, i1)
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declare i32 @__kmpc_global_thread_num(ptr) #1
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declare void @__kmpc_target_deinit(ptr, i8)
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attributes #0 = { convergent noinline norecurse nounwind "frame-pointer"="none" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-features"="+ptx32,+sm_20" }
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attributes #1 = { nounwind }
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!omp_offload.info = !{!0}
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!nvvm.annotations = !{!1}
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!llvm.module.flags = !{!2, !3, !4}
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!0 = !{i32 0, i32 80, i32 -1545561096, !"foo", i32 2, i32 0}
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!1 = !{ptr @__omp_offloading_50_a3e09bf8_foo_l2, !"kernel", i32 1}
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!2 = !{i32 1, !"wchar_size", i32 4}
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!3 = !{i32 7, !"openmp", i32 50}
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!4 = !{i32 7, !"openmp-device", i32 50}
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