f3b4f99007
Summary: In the clang UI, replaces -mthread-model posix with -matomics as the source of truth on threading. In the backend, replaces -thread-model=posix with the atomics target feature, which is now collected on the WebAssemblyTargetMachine along with all other used features. These collected features will also be used to emit the target features section in the future. The default configuration for the backend is thread-model=posix and no atomics, which was previously an invalid configuration. This change makes the default valid because the thread model is ignored. A side effect of this change is that objects are never emitted with passive segments. It will instead be up to the linker to decide whether sections should be active or passive based on whether atomics are used in the final link. Reviewers: aheejin, sbc100, dschuff Subscribers: mehdi_amini, jgravelle-google, hiraditya, sunfish, steven_wu, dexonsmith, rupprecht, jfb, jdoerfert, cfe-commits, llvm-commits Tags: #clang, #llvm Differential Revision: https://reviews.llvm.org/D58742 llvm-svn: 355112
17 lines
455 B
Plaintext
17 lines
455 B
Plaintext
; RUN: llc -mtriple=wasm32-unknown-unknown -filetype=obj %s -o - | llvm-objdump -r - | FileCheck %s
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@foo = external global i32, align 4
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@bar = global i32* @foo, align 4
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define void @make_call(void ()* nocapture %func) {
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entry:
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call void %func()
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ret void
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}
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; CHECK: RELOCATION RECORDS FOR [CODE]:
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; CHECK-NEXT: 00000006 R_WASM_TYPE_INDEX_LEB 1+0
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; CHECK: RELOCATION RECORDS FOR [DATA]:
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; CHECK-NEXT: 00000006 R_WASM_MEMORY_ADDR_I32 foo+0
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