| ; Basic ThinLTO tests. |
| ; RUN: opt -module-summary %s -o %t1.o |
| ; RUN: opt -module-summary %p/Inputs/thinlto.ll -o %t2.o |
| |
| ; First force single-threaded mode |
| ; RUN: rm -f %t31.lto.o %t32.lto.o |
| ; RUN: wasm-ld -r -save-temps --thinlto-jobs=1 %t1.o %t2.o -o %t3 |
| ; RUN: llvm-nm %t31.lto.o | FileCheck %s --check-prefix=NM1 |
| ; RUN: llvm-nm %t32.lto.o | FileCheck %s --check-prefix=NM2 |
| |
| ; Next force multi-threaded mode |
| ; RUN: rm -f %t31.lto.o %t32.lto.o |
| ; RUN: wasm-ld -r -save-temps --thinlto-jobs=2 %t1.o %t2.o -o %t3 |
| ; RUN: llvm-nm %t31.lto.o | FileCheck %s --check-prefix=NM1 |
| ; RUN: llvm-nm %t32.lto.o | FileCheck %s --check-prefix=NM2 |
| |
| ;; --thinlto-jobs= defaults to --threads=. |
| ; RUN: rm -f %t31.lto.o %t32.lto.o |
| ; RUN: wasm-ld -r -save-temps --threads=2 %t1.o %t2.o -o %t3 |
| ; RUN: llvm-nm %t31.lto.o | FileCheck %s --check-prefix=NM1 |
| ; RUN: llvm-nm %t32.lto.o | FileCheck %s --check-prefix=NM2 |
| |
| ;; --thinlto-jobs= overrides --threads=. |
| ; RUN: rm -f %t31.lto.o %t32.lto.o |
| ; RUN: wasm-ld -r -save-temps --threads=1 --thinlto-jobs=2 %t1.o %t2.o -o %t3 |
| ; RUN: llvm-nm %t31.lto.o | FileCheck %s --check-prefix=NM1 |
| ; RUN: llvm-nm %t32.lto.o | FileCheck %s --check-prefix=NM2 |
| |
| ; Test with all threads, on all cores, on all CPU sockets |
| ; RUN: rm -f %t31.lto.o %t32.lto.o |
| ; RUN: wasm-ld -r -save-temps --thinlto-jobs=all %t1.o %t2.o -o %t3 |
| ; RUN: llvm-nm %t31.lto.o | FileCheck %s --check-prefix=NM1 |
| ; RUN: llvm-nm %t32.lto.o | FileCheck %s --check-prefix=NM2 |
| |
| ; Test with many more threads than the system has |
| ; RUN: rm -f %t31.lto.o %t32.lto.o |
| ; RUN: wasm-ld -r -save-temps --thinlto-jobs=100 %t1.o %t2.o -o %t3 |
| ; RUN: llvm-nm %t31.lto.o | FileCheck %s --check-prefix=NM1 |
| ; RUN: llvm-nm %t32.lto.o | FileCheck %s --check-prefix=NM2 |
| |
| ; Test with a bad value |
| ; RUN: rm -f %t31.lto.o %t32.lto.o |
| ; RUN: not wasm-ld -r -save-temps --thinlto-jobs=foo %t1.o %t2.o -o %t3 2>&1 | FileCheck %s --check-prefix=BAD-JOBS |
| ; BAD-JOBS: error: --thinlto-jobs: invalid job count: foo |
| |
| ; Check without --thinlto-jobs (which currently defaults to heavyweight_hardware_concurrency, meanning one thread per hardware core -- not SMT) |
| ; RUN: rm -f %t31.lto.o %t32.lto.o |
| ; RUN: wasm-ld -r -save-temps %t1.o %t2.o -o %t3 |
| ; RUN: llvm-nm %t31.lto.o | FileCheck %s --check-prefix=NM1 |
| ; RUN: llvm-nm %t32.lto.o | FileCheck %s --check-prefix=NM2 |
| |
| ; NM1: T f |
| ; NM2: T g |
| |
| target datalayout = "e-m:e-p:32:32-p10:8:8-p20:8:8-i64:64-n32:64-S128" |
| target triple = "wasm32-unknown-unknown" |
| |
| declare void @g(...) |
| |
| define void @f() { |
| entry: |
| call void (...) @g() |
| ret void |
| } |