c3536b263f
This defines some new target features. These are subsets of existing features that reflect implementation concerns: - "call-indirect-overlong" - implied by "reference-types"; just the overlong encoding for the `call_indirect` immediate, and not the actual reference types. - "bulk-memory-opt" - implied by "bulk-memory": just `memory.copy` and `memory.fill`, and not the other instructions in the bulk-memory proposal. This is split out from https://github.com/llvm/llvm-project/pull/112035. --------- Co-authored-by: Heejin Ahn <aheejin@gmail.com>
64 lines
1.7 KiB
LLVM
64 lines
1.7 KiB
LLVM
; RUN: llc < %s -asm-verbose=false -mattr=-reference-types,-call-indirect-overlong -O2 | FileCheck %s
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; RUN: llc < %s -asm-verbose=false -mattr=+reference-types -O2 | FileCheck --check-prefix=REF %s
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; RUN: llc < %s -asm-verbose=false -mattr=-reference-types,-call-indirect-overlong -O2 --filetype=obj | obj2yaml | FileCheck --check-prefix=YAML %s
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; This tests pointer features that may codegen differently in wasm64.
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target triple = "wasm64-unknown-unknown"
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define void @bar(i32 %n) {
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entry:
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ret void
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}
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define void @foo(ptr %fp) {
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entry:
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call void %fp(i32 1)
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ret void
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}
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define void @test() {
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entry:
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call void @foo(ptr @bar)
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store ptr @bar, ptr @fptr
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ret void
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}
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@fptr = global ptr @bar
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; For simplicity (and compatibility with UB C/C++ code) we keep all types
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; of pointers the same size, so function pointers (which are 32-bit indices
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; in Wasm) are represented as 64-bit until called.
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; CHECK-LABEL: foo:
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; CHECK: .functype foo (i64) -> ()
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; CHECK-NEXT: i32.const 1
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; CHECK-NEXT: local.get 0
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; CHECK-NEXT: call_indirect (i32) -> ()
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; REF: call_indirect __indirect_function_table, (i32) -> ()
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; CHECK: .functype test () -> ()
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; CHECK-NEXT: i64.const bar
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; CHECK-NEXT: call foo
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; Check we're emitting a 64-bit relocs for the call_indirect, the
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; `i64.const bar` reference in code, and the global.
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; YAML: Memory:
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; YAML-NEXT: Flags: [ IS_64 ]
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; YAML-NEXT: Minimum: 0x1
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; YAML: - Type: CODE
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; YAML: - Type: R_WASM_TABLE_INDEX_SLEB64
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; YAML-NEXT: Index: 0
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; YAML-NEXT: Offset: 0x15
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; YAML: - Type: R_WASM_TABLE_INDEX_SLEB64
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; YAML-NEXT: Index: 0
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; YAML-NEXT: Offset: 0x28
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; YAML: - Type: DATA
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; YAML: - Type: R_WASM_TABLE_INDEX_I64
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; YAML-NEXT: Index: 0
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; YAML-NEXT: Offset: 0x6
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