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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
97 lines
2.3 KiB
LLVM
97 lines
2.3 KiB
LLVM
; RUN: llc < %s -asm-verbose=false | FileCheck %s
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; Test that extending loads are assembled properly.
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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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; CHECK-LABEL: sext_i8_i32:
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; CHECK: i32.load8_s $push, (get_local 0){{$}}
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; CHECK-NEXT: set_local 1, $pop{{$}}
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define i32 @sext_i8_i32(i8 *%p) {
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%v = load i8, i8* %p
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%e = sext i8 %v to i32
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ret i32 %e
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}
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; CHECK-LABEL: zext_i8_i32:
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; CHECK: i32.load8_u $push, (get_local 0){{$}}
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; CHECK-NEXT: set_local 1, $pop{{$}}
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define i32 @zext_i8_i32(i8 *%p) {
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%v = load i8, i8* %p
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%e = zext i8 %v to i32
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ret i32 %e
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}
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; CHECK-LABEL: sext_i16_i32:
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; CHECK: i32.load16_s $push, (get_local 0){{$}}
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; CHECK-NEXT: set_local 1, $pop{{$}}
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define i32 @sext_i16_i32(i16 *%p) {
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%v = load i16, i16* %p
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%e = sext i16 %v to i32
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ret i32 %e
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}
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; CHECK-LABEL: zext_i16_i32:
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; CHECK: i32.load16_u $push, (get_local 0){{$}}
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; CHECK-NEXT: set_local 1, $pop{{$}}
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define i32 @zext_i16_i32(i16 *%p) {
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%v = load i16, i16* %p
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%e = zext i16 %v to i32
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ret i32 %e
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}
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; CHECK-LABEL: sext_i8_i64:
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; CHECK: i64.load8_s $push, (get_local 0){{$}}
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; CHECK-NEXT: set_local 1, $pop{{$}}
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define i64 @sext_i8_i64(i8 *%p) {
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%v = load i8, i8* %p
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%e = sext i8 %v to i64
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ret i64 %e
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}
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; CHECK-LABEL: zext_i8_i64:
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; CHECK: i64.load8_u $push, (get_local 0){{$}}
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; CHECK-NEXT: set_local 1, $pop{{$}}
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define i64 @zext_i8_i64(i8 *%p) {
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%v = load i8, i8* %p
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%e = zext i8 %v to i64
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ret i64 %e
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}
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; CHECK-LABEL: sext_i16_i64:
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; CHECK: i64.load16_s $push, (get_local 0){{$}}
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; CHECK-NEXT: set_local 1, $pop{{$}}
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define i64 @sext_i16_i64(i16 *%p) {
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%v = load i16, i16* %p
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%e = sext i16 %v to i64
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ret i64 %e
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}
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; CHECK-LABEL: zext_i16_i64:
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; CHECK: i64.load16_u $push, (get_local 0){{$}}
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; CHECK-NEXT: set_local 1, $pop{{$}}
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define i64 @zext_i16_i64(i16 *%p) {
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%v = load i16, i16* %p
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%e = zext i16 %v to i64
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ret i64 %e
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}
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; CHECK-LABEL: sext_i32_i64:
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; CHECK: i64.load32_s $push, (get_local 0){{$}}
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; CHECK-NEXT: set_local 1, $pop{{$}}
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define i64 @sext_i32_i64(i32 *%p) {
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%v = load i32, i32* %p
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%e = sext i32 %v to i64
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ret i64 %e
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}
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; CHECK-LABEL: zext_i32_i64:
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; CHECK: i64.load32_u $push, (get_local 0){{$}}
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; CHECK: set_local 1, $pop{{$}}
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define i64 @zext_i32_i64(i32 *%p) {
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%v = load i32, i32* %p
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%e = zext i32 %v to i64
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ret i64 %e
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}
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