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d39c38d2bc
Switch to MC for instruction printing. This encompasses several changes which are all interconnected: - Use the MC framework for printing almost all instructions. - AsmStrings are now live. - This introduces an indirection between LLVM vregs and WebAssembly registers, and a new pass, WebAssemblyRegNumbering, for computing a basic the mapping. This addresses some basic issues with argument registers and unused registers. - The way ARGUMENT instructions are handled no longer generates redundant get_local+set_local for every argument. This also changes the assembly syntax somewhat; most notably, MC's printing does not use sigils on label names, so those are no longer present, and push/pop now have a sigil to keep them unambiguous. The usage of set_local/get_local/$push/$pop will continue to evolve significantly. This patch is just one step of a larger change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252910 91177308-0d34-0410-b5e6-96231b3b80d8
31 lines
854 B
LLVM
31 lines
854 B
LLVM
; RUN: llc < %s -asm-verbose=false | FileCheck %s
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; Test that basic memory operations assemble as expected with 32-bit addresses.
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target datalayout = "e-p:32:32-i64:64-n32:64-S128"
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target triple = "wasm32-unknown-unknown"
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declare i32 @llvm.wasm.memory.size.i32() nounwind readnone
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declare void @llvm.wasm.grow.memory.i32(i32) nounwind
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; CHECK-LABEL: memory_size:
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; CHECK-NEXT: .result i32{{$}}
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; CHECK-NEXT: .local i32{{$}}
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; CHECK-NEXT: memory_size
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; CHECK-NEXT: set_local 0, $pop{{$}}
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; CHECK-NEXT: return (get_local 0){{$}}
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define i32 @memory_size() {
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%a = call i32 @llvm.wasm.memory.size.i32()
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ret i32 %a
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}
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; CHECK-LABEL: grow_memory:
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; CHECK-NEXT: .param i32
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; CHECK-NEXT: .local i32{{$}}
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; CHECK: grow_memory (get_local 0)
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; CHECK-NEXT: return
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define void @grow_memory(i32 %n) {
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call void @llvm.wasm.grow.memory.i32(i32 %n)
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ret void
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}
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