1; RUN: opt -thinlto-bc -thinlto-split-lto-unit -o %t %s 2; RUN: llvm-modextract -n 0 -o - %t | llvm-dis | FileCheck --check-prefix=THIN %s 3; RUN: llvm-modextract -n 1 -o - %t | llvm-dis | FileCheck --check-prefix=MERGED %s 4 5target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128" 6target triple = "x86_64-pc-windows-msvc19.0.24215" 7 8; Internal comdat leader with type metadata. All comdat members need to live 9; in the merged module, and the comdat needs to be renamed. 10; MERGED: ${{"?lwt[^ ]+}} = comdat any 11$lwt = comdat any 12 13; External comdat leader, type metadata on non-leader. All comdat 14; members need to live in the merged module, internal members need to 15; be renamed. 16; MERGED: $nlwt = comdat any 17$nlwt = comdat any 18 19; Comdat with two members without type metadata. All comdat members live in 20; the ThinLTO module and no renaming needs to take place. 21; THIN: $nt = comdat any 22$nt = comdat any 23 24; MERGED: @lwt_aliasee = private unnamed_addr global 25; MERGED-SAME: comdat(${{"?lwt[^ ]+}}) 26@lwt_aliasee = private unnamed_addr global [1 x ptr] [ptr null], comdat($lwt), !type !0 27 28; MERGED: {{@"?lwt_nl[^ ]+}} = hidden unnamed_addr global 29; MERGED-SAME: comdat(${{"?lwt[^ ]+}}) 30; THIN: {{@"?lwt_nl[^ ]+}} = external hidden 31@lwt_nl = internal unnamed_addr global i32 0, comdat($lwt) 32 33; MERGED: @nlwt_aliasee = private unnamed_addr global 34; MERGED-SAME: comdat($nlwt) 35@nlwt_aliasee = private unnamed_addr global [1 x ptr] [ptr null], comdat($nlwt), !type !0 36 37; MERGED: @nlwt = unnamed_addr global 38; MERGED-SAME: comdat 39; THIN: @nlwt = external 40@nlwt = unnamed_addr global i32 0, comdat 41 42; THIN: @nt = internal 43; THIN-SAME: comdat 44@nt = internal unnamed_addr global [1 x ptr] [ptr null], comdat 45 46; THIN: @nt_nl = internal 47; THIN-SAME: comdat($nt) 48@nt_nl = internal unnamed_addr global i32 0, comdat($nt) 49 50; MERGED: {{@"?lwt[^ ]+}} = hidden unnamed_addr alias 51; THIN: {{@"?lwt[^ ]+}} = external hidden 52@lwt = internal unnamed_addr alias [1 x ptr], ptr @lwt_aliasee 53 54; MERGED: {{@"?nlwt_nl[^ ]+}} = hidden unnamed_addr alias 55; THIN: {{@"?nlwt_nl[^ ]+}} = external hidden 56@nlwt_nl = internal unnamed_addr alias [1 x ptr], ptr @nlwt_aliasee 57 58; The functions below exist just to make sure the globals are used. 59define ptr @lwt_fun() { 60 %1 = load i32, ptr @lwt_nl 61 %2 = getelementptr inbounds [1 x ptr], ptr @lwt, i32 0, i32 %1 62 %3 = load ptr, ptr %2 63 ret ptr %3 64} 65 66define ptr @nlwt_fun() { 67 %1 = load i32, ptr @nlwt 68 %2 = getelementptr inbounds [1 x ptr], ptr @nlwt_nl, i32 0, i32 %1 69 %3 = load ptr, ptr %2 70 ret ptr %3 71} 72 73define ptr @nt_fun() { 74 %1 = load i32, ptr @nt_nl 75 %2 = getelementptr inbounds [1 x ptr], ptr @nt, i32 0, i32 %1 76 %3 = load ptr, ptr %2 77 ret ptr %3 78} 79 80!0 = !{i64 8, !"?AVA@@"} 81