maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/lld/test/wasm/no-tls.test

Ignoring revisions in .git-blame-ignore-revs. Click here to bypass and see the normal blame view.

42 lines
1.4 KiB
Plaintext
Raw Normal View History

[WebAssembly] Set __tls_align to 1 when there is no TLS Summary: We want the tool conventions to state that `__tls_align` will be a power of 2. It makes sense to not have an exception for when there is no TLS. Reviewers: tlively, sunfish Reviewed By: tlively Subscribers: dschuff, sbc100, jgravelle-google, aheejin, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D65177 llvm-svn: 366948
2019-07-25 05:48:14 +08:00
; Testing that __tls_size and __tls_align are correctly emitted when there are
; no thread_local variables.
[WebAssembly] Initialize memory in start function Summary: - `__wasm_init_memory` is now the WebAssembly start function instead of being called from `__wasm_call_ctors` or called directly by the runtime. - Adds a new synthetic data symbol `__wasm_init_memory_flag` that is atomically incremented from zero to one by the thread responsible for initializing memory. - All threads now unconditionally perform data.drop on all passive segments. - Removes --passive-segments and --active-segments flags and controls segment type based on --shared-memory instead. The deleted flags were only present to ameliorate the upgrade path in Emscripten. Reviewers: sbc100, aheejin Subscribers: dschuff, jgravelle-google, sunfish, jfb, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D65783 llvm-svn: 370965
2019-09-05 03:50:39 +08:00
RUN: llc -mattr=+bulk-memory,+atomics -filetype=obj %p/Inputs/start.ll -o %t.o
[WebAssembly] Set __tls_align to 1 when there is no TLS Summary: We want the tool conventions to state that `__tls_align` will be a power of 2. It makes sense to not have an exception for when there is no TLS. Reviewers: tlively, sunfish Reviewed By: tlively Subscribers: dschuff, sbc100, jgravelle-google, aheejin, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D65177 llvm-svn: 366948
2019-07-25 05:48:14 +08:00
RUN: wasm-ld -no-gc-sections --shared-memory --max-memory=131072 --allow-undefined -o %t.wasm %t.o
RUN: obj2yaml %t.wasm | FileCheck %s
CHECK: - Type: GLOBAL
CHECK-NEXT: Globals:
; __stack_pointer
CHECK-NEXT: - Index: 0
CHECK-NEXT: Type: I32
CHECK-NEXT: Mutable: true
CHECK-NEXT: InitExpr:
CHECK-NEXT: Opcode: I32_CONST
[WebAssembly] Initialize memory in start function Summary: - `__wasm_init_memory` is now the WebAssembly start function instead of being called from `__wasm_call_ctors` or called directly by the runtime. - Adds a new synthetic data symbol `__wasm_init_memory_flag` that is atomically incremented from zero to one by the thread responsible for initializing memory. - All threads now unconditionally perform data.drop on all passive segments. - Removes --passive-segments and --active-segments flags and controls segment type based on --shared-memory instead. The deleted flags were only present to ameliorate the upgrade path in Emscripten. Reviewers: sbc100, aheejin Subscribers: dschuff, jgravelle-google, sunfish, jfb, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D65783 llvm-svn: 370965
2019-09-05 03:50:39 +08:00
CHECK-NEXT: Value: 66576
[WebAssembly] Set __tls_align to 1 when there is no TLS Summary: We want the tool conventions to state that `__tls_align` will be a power of 2. It makes sense to not have an exception for when there is no TLS. Reviewers: tlively, sunfish Reviewed By: tlively Subscribers: dschuff, sbc100, jgravelle-google, aheejin, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D65177 llvm-svn: 366948
2019-07-25 05:48:14 +08:00
; __tls_base
CHECK-NEXT: - Index: 1
CHECK-NEXT: Type: I32
CHECK-NEXT: Mutable: true
CHECK-NEXT: InitExpr:
CHECK-NEXT: Opcode: I32_CONST
CHECK-NEXT: Value: 0
; __tls_size
CHECK-NEXT: - Index: 2
CHECK-NEXT: Type: I32
CHECK-NEXT: Mutable: false
CHECK-NEXT: InitExpr:
CHECK-NEXT: Opcode: I32_CONST
CHECK-NEXT: Value: 0
; __tls_align
CHECK-NEXT: - Index: 3
CHECK-NEXT: Type: I32
CHECK-NEXT: Mutable: false
CHECK-NEXT: InitExpr:
CHECK-NEXT: Opcode: I32_CONST
CHECK-NEXT: Value: 1