1; This test ensures that when linkonce_odr + unnamed_addr symbols & linkonce_odr 2; + local_unnamed_addr constants get promoted to weak symbols, we preserves the 3; auto hide property when possible. 4 5; RUN: opt -module-summary %s -o %t.bc 6; RUN: opt -module-summary %p/Inputs/linkonce_odr_unnamed_addr.ll -o %t2.bc 7; Check old LTO API 8; RUN: llvm-lto -thinlto-action=thinlink -o %t3.bc %t.bc %t2.bc 9; RUN: llvm-lto -thinlto-action=promote %t.bc -thinlto-index=%t3.bc -o - | llvm-dis -o - | FileCheck %s 10; Check new LTO API 11; RUN: llvm-lto2 run -save-temps -o %t6.bc %t.bc %t2.bc \ 12; RUN: -r=%t.bc,linkonceodrunnamedconst,p \ 13; RUN: -r=%t.bc,linkonceodrunnamed,p \ 14; RUN: -r=%t.bc,linkonceodrlocalunnamedconst,p \ 15; RUN: -r=%t.bc,linkonceodrlocalunnamed,p \ 16; RUN: -r=%t.bc,odrunnamed,p \ 17; RUN: -r=%t2.bc,linkonceodrunnamedconst \ 18; RUN: -r=%t2.bc,linkonceodrunnamed \ 19; RUN: -r=%t2.bc,linkonceodrlocalunnamedconst \ 20; RUN: -r=%t2.bc,linkonceodrlocalunnamed \ 21; RUN: -r=%t2.bc,odrunnamed 22; RUN: llvm-dis %t6.bc.1.1.promote.bc -o - | FileCheck %s 23 24; Now test when one module does not have a summary. In that case we must be 25; conservative and not auto hide. 26; RUN: opt %p/Inputs/linkonce_odr_unnamed_addr.ll -o %t4.bc 27; Check new LTO API (old LTO API does not detect this case). 28; RUN: llvm-lto2 run -save-temps -o %t6.bc %t.bc %t4.bc \ 29; RUN: -r=%t.bc,linkonceodrunnamedconst,p \ 30; RUN: -r=%t.bc,linkonceodrunnamed,p \ 31; RUN: -r=%t.bc,linkonceodrlocalunnamedconst,p \ 32; RUN: -r=%t.bc,linkonceodrlocalunnamed,p \ 33; RUN: -r=%t.bc,odrunnamed,p \ 34; RUN: -r=%t4.bc,linkonceodrunnamedconst \ 35; RUN: -r=%t4.bc,linkonceodrunnamed \ 36; RUN: -r=%t4.bc,linkonceodrlocalunnamedconst \ 37; RUN: -r=%t4.bc,linkonceodrlocalunnamed \ 38; RUN: -r=%t4.bc,odrunnamed 39; RUN: llvm-dis %t6.bc.1.1.promote.bc -o - | FileCheck %s --check-prefix=NOSUMMARY 40 41target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 42target triple = "x86_64-grtev4-linux-gnu" 43 44; In this case all copies are linkonce_odr, so it may be hidden. 45; CHECK: @linkonceodrunnamedconst = weak_odr hidden unnamed_addr constant i32 0 46; CHECK: @linkonceodrunnamed = weak_odr hidden unnamed_addr global i32 0 47; CHECK: @linkonceodrlocalunnamedconst = weak_odr hidden local_unnamed_addr constant i32 0 48; NOSUMMARY: @linkonceodrunnamedconst = weak_odr unnamed_addr constant i32 0 49; NOSUMMARY: @linkonceodrunnamed = weak_odr unnamed_addr global i32 0 50; NOSUMMARY: @linkonceodrlocalunnamedconst = weak_odr local_unnamed_addr constant i32 0 51@linkonceodrunnamedconst = linkonce_odr unnamed_addr constant i32 0 52@linkonceodrunnamed = linkonce_odr unnamed_addr global i32 0 53@linkonceodrlocalunnamedconst = linkonce_odr local_unnamed_addr constant i32 0 54 55; In this case, the other copy was weak_odr, so it may not be hidden. 56; CHECK: @odrunnamed = weak_odr unnamed_addr constant i32 0 57; NOSUMMARY: @odrunnamed = weak_odr unnamed_addr constant i32 0 58@odrunnamed = linkonce_odr unnamed_addr constant i32 0 59 60; local_unnamed_addr globals cannot be hidden. 61; CHECK: @linkonceodrlocalunnamed = weak_odr local_unnamed_addr global i32 0 62; NOSUMMARY: @linkonceodrlocalunnamed = weak_odr local_unnamed_addr global i32 0 63@linkonceodrlocalunnamed = linkonce_odr local_unnamed_addr global i32 0 64