archived-llvm/return-int32.ll at c5aa4e71ff52b61762ef2dfdab5ccba6a49fffe5 - archived-llvm - Free-Git: DMCA Non-Compliant

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Dan Gohman 94401ce9c8 [WebAssembly] Enable register coloring and register stackifying.

This also takes the push/pop syntax another step forward, introducing stack
slot numbers to make it easier to see how expressions are connected. For
example, the value pushed in $push7 is popped in $pop7.

And, this begins an experiment with making get_local and set_local implicit
when an operation directly uses or defines a register. This greatly reduces
clutter. If this experiment succeeds, it may make sense to do this for
const instructions as well.

And, this introduces more special code for ARGUMENTS; hopefully this code
will soon be obviated by proper support for live-in virtual registers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253465 91177308-0d34-0410-b5e6-96231b3b80d8

2015-11-18 16:12:01 +00:00

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 ; RUN: llc < %s -asm-verbose=false | FileCheck %s
 target datalayout = "e-p:32:32-i64:64-n32:64-S128"
 target triple = "wasm32-unknown-unknown"
 ; CHECK-LABEL: return_i32:
 ; CHECK: return $0{{$}}
 define i32 @return_i32(i32 %p) {
   ret i32 %p
 }