59 lines
1.4 KiB
LLVM
59 lines
1.4 KiB
LLVM
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; RUN: llc < %s -asm-verbose=false -O2 | FileCheck %s
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; RUN: llc < %s -asm-verbose=false -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 datalayout = "e-m:e-p:64:64-i64:64-n32:64-S128"
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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(void (i32)* %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(void (i32)* @bar)
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store void (i32)* @bar, void (i32)** @fptr
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ret void
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}
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@fptr = global void (i32)* @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: .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: i32.wrap_i64
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; CHECK-NEXT: call_indirect (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 reloc for `i64.const bar` and the global.
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; YAML: Memory:
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; YAML-NEXT: Flags: [ IS_64 ]
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; YAML-NEXT: Initial: 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: 0x16
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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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