| ; Test to ensure that the Enable Split LTO Unit flag is set properly in the |
| ; summary, and that we correctly silently handle linking bitcode files with |
| ; different values of this flag. |
| |
| ; Linking bitcode both with EnableSplitLTOUnit set should work |
| ; RUN: opt -thinlto-bc -thinlto-split-lto-unit -o %t1 %s |
| ; RUN: llvm-bcanalyzer -dump %t1 | FileCheck %s --check-prefix=SPLITLTOUNIT |
| ; RUN: llvm-dis -o - %t1 | FileCheck %s --check-prefix=ENABLESPLITFLAG |
| ; RUN: opt -thinlto-bc -thinlto-split-lto-unit -o %t2 %s |
| ; RUN: llvm-bcanalyzer -dump %t2 | FileCheck %s --check-prefix=SPLITLTOUNIT |
| ; RUN: llvm-dis -o - %t2 | FileCheck %s --check-prefix=ENABLESPLITFLAG |
| ; RUN: llvm-lto2 run -o %t3 %t1 %t2 |
| |
| ; Linking bitcode both without EnableSplitLTOUnit set should work |
| ; RUN: opt -thinlto-bc -thinlto-split-lto-unit=false -o %t1 %s |
| ; RUN: llvm-bcanalyzer -dump %t1 | FileCheck %s --check-prefix=NOSPLITLTOUNIT |
| ; RUN: llvm-dis -o - %t1 | FileCheck %s --check-prefix=NOENABLESPLITFLAG |
| ; RUN: opt -thinlto-bc -thinlto-split-lto-unit=false -o %t2 %s |
| ; RUN: llvm-bcanalyzer -dump %t2 | FileCheck %s --check-prefix=NOSPLITLTOUNIT |
| ; RUN: llvm-dis -o - %t2 | FileCheck %s --check-prefix=NOENABLESPLITFLAG |
| ; RUN: llvm-lto2 run -o %t3 %t1 %t2 |
| |
| ; Linking bitcode with different values of EnableSplitLTOUnit should succeed |
| ; (silently skipping any optimizations like whole program devirt that rely |
| ; on all modules being split). |
| ; RUN: opt -thinlto-bc -thinlto-split-lto-unit -o %t1 %s |
| ; RUN: llvm-bcanalyzer -dump %t1 | FileCheck %s --check-prefix=SPLITLTOUNIT |
| ; RUN: llvm-dis -o - %t1 | FileCheck %s --check-prefix=ENABLESPLITFLAG |
| ; RUN: opt -thinlto-bc -thinlto-split-lto-unit=false -o %t2 %s |
| ; RUN: llvm-bcanalyzer -dump %t2 | FileCheck %s --check-prefix=NOSPLITLTOUNIT |
| ; RUN: llvm-dis -o - %t2 | FileCheck %s --check-prefix=NOENABLESPLITFLAG |
| ; RUN: llvm-lto2 run -o %t3 %t1 %t2 |
| |
| ; Linking bitcode with different values of EnableSplitLTOUnit (reverse order) |
| ; should succeed (silently skipping any optimizations like whole program devirt |
| ; that rely on all modules being split). |
| ; RUN: opt -thinlto-bc -thinlto-split-lto-unit=false -o %t1 %s |
| ; RUN: llvm-bcanalyzer -dump %t1 | FileCheck %s --check-prefix=NOSPLITLTOUNIT |
| ; RUN: llvm-dis -o - %t1 | FileCheck %s --check-prefix=NOENABLESPLITFLAG |
| ; RUN: opt -thinlto-bc -thinlto-split-lto-unit -o %t2 %s |
| ; RUN: llvm-bcanalyzer -dump %t2 | FileCheck %s --check-prefix=SPLITLTOUNIT |
| ; RUN: llvm-dis -o - %t2 | FileCheck %s --check-prefix=ENABLESPLITFLAG |
| ; RUN: llvm-lto2 run -o %t3 %t1 %t2 |
| |
| ; The flag should be set when splitting is disabled (for backwards compatibility |
| ; with older bitcode where it was always enabled). |
| ; SPLITLTOUNIT: <FLAGS op0=8/> |
| ; NOSPLITLTOUNIT: <FLAGS op0=0/> |
| |
| ; Check that the corresponding module flag is set when expected. |
| ; ENABLESPLITFLAG: !{i32 1, !"EnableSplitLTOUnit", i32 1} |
| ; NOENABLESPLITFLAG-NOT: !{i32 1, !"EnableSplitLTOUnit", i32 1} |
| |
| target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |