diff options
Diffstat (limited to 'llvm/test/Bitcode/thinlto-index-flags.ll')
| -rw-r--r-- | llvm/test/Bitcode/thinlto-index-flags.ll | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/llvm/test/Bitcode/thinlto-index-flags.ll b/llvm/test/Bitcode/thinlto-index-flags.ll new file mode 100644 index 0000000..e957ce6 --- /dev/null +++ b/llvm/test/Bitcode/thinlto-index-flags.ll @@ -0,0 +1,39 @@ +; REQUIRES: x86-registered-target +; RUN: opt -module-summary %s -o %t.o + +;; By default, the indexing step should perform and set the appropriate index +;; flags for dead stripping, attribute propagation, DSO local propagation, +;; and internalization/promotion. +; RUN: llvm-lto2 run %t.o -o %t.out -thinlto-distributed-indexes \ +; RUN: -r %t.o,glob,plx +; RUN: llvm-bcanalyzer -dump %t.o.thinlto.bc | FileCheck %s --check-prefix=ALL +;; The flag value should be 0x461 aka 1121: +;; 0x1: Dead stripping +;; 0x20: Attribute propagation +;; 0x40: DSO local propagation +;; 0x400: Internalization/promotion +; ALL: <FLAGS op0=1121/> + +;; Ensure dead stripping performed flag is not set on distributed index +;; when option used to disable dead stripping computation. +; RUN: llvm-lto2 run %t.o -o %t.out -thinlto-distributed-indexes \ +; RUN: -r %t.o,glob,plx -compute-dead=false +; RUN: llvm-bcanalyzer -dump %t.o.thinlto.bc | FileCheck %s --check-prefix=NODEAD +;; Flag should be 0x460 aka 1120. +; NODEAD: <FLAGS op0=1120/> + +;; Disabling attribute propagation should disable that as well as DSO local +;; propagation. +; RUN: llvm-lto2 run %t.o -o %t.out -thinlto-distributed-indexes \ +; RUN: -r %t.o,glob,plx -propagate-attrs=false +; RUN: llvm-bcanalyzer -dump %t.o.thinlto.bc | FileCheck %s --check-prefix=NOPROP +;; Flag should be 0x401 aka 1025. +; NOPROP: <FLAGS op0=1025/> + +;; Note there isn't currently a way to disable internalization+promotion, which +;; are performed together. + +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" +target triple = "x86_64-unknown-linux-gnu" + +@glob = global i32 0 |