c67c9cfe3f
Reland of 00bf4755.
This patches fixes the visibility and linkage information of symbols
referring to IR globals.
Emission of external declarations is now done in the first execution
of emitConstantPool rather than in emitLinkage (and a few other
places). This is the point where we have already gathered information
about used symbols (by running the MC Lower PrePass) and not yet
started emitting any functions so that any declarations that need to
be emitted are done so at the top of the file before any functions.
This changes the order of a few directives in the final asm file which
required an update to a few tests.
Reviewed By: sbc100
Differential Revision: https://reviews.llvm.org/D118995
33 lines
1.2 KiB
LLVM
33 lines
1.2 KiB
LLVM
; RUN: llc < %s --mtriple=wasm32-unknown-unknown -asm-verbose=false -mattr=+reference-types | FileCheck %s
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%funcptr = type void () addrspace(20)*
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%funcref = type i8 addrspace(20)* ;; addrspace 20 is nonintegral
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@funcref_table = local_unnamed_addr addrspace(1) global [0 x %funcref] undef
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; CHECK: .tabletype __funcref_call_table, funcref, 1
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define void @call_funcref_from_table(i32 %i) {
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; CHECK-LABEL: call_funcref_from_table:
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; CHECK-NEXT: .functype call_funcref_from_table (i32) -> ()
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; CHECK-NEXT: i32.const 0
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: table.get funcref_table
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; CHECK-NEXT: table.set __funcref_call_table
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; CHECK-NEXT: i32.const 0
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; CHECK-NEXT: call_indirect __funcref_call_table, () -> ()
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; CHECK-NEXT: i32.const 0
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; CHECK-NEXT: ref.null_func
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; CHECK-NEXT: table.set __funcref_call_table
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; CHECK-NEXT: end_function
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%p = getelementptr [0 x %funcref], [0 x %funcref] addrspace (1)* @funcref_table, i32 0, i32 %i
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%ref = load %funcref, %funcref addrspace(1)* %p
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%fn = bitcast %funcref %ref to %funcptr
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call addrspace(20) void %fn()
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ret void
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}
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; CHECK: .tabletype funcref_table, funcref
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; CHECK-LABEL: funcref_table:
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