1 ; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -verify-machineinstrs | FileCheck %s 2 3 ; Test that phis are lowered. 4 5 target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128" 6 target triple = "wasm32-unknown-unknown" 7 8 ; Basic phi triangle. 9 10 ; CHECK-LABEL: test0: 11 ; CHECK: div_s $[[NUM0:[0-9]+]]=, $0, $pop[[NUM1:[0-9]+]]{{$}} 12 ; CHECK: return $[[NUM0]]{{$}} 13 define i32 @test0(i32 %p) { 14 entry: 15 %t = icmp slt i32 %p, 0 16 br i1 %t, label %true, label %done 17 true: 18 %a = sdiv i32 %p, 3 19 br label %done 20 done: 21 %s = phi i32 [ %a, %true ], [ %p, %entry ] 22 ret i32 %s 23 } 24 25 ; Swap phis. 26 27 ; CHECK-LABEL: test1: 28 ; CHECK: .LBB1_1: 29 ; CHECK: copy_local $[[NUM0:[0-9]+]]=, $[[NUM1:[0-9]+]]{{$}} 30 ; CHECK: copy_local $[[NUM1]]=, $[[NUM2:[0-9]+]]{{$}} 31 ; CHECK: copy_local $[[NUM2]]=, $[[NUM0]]{{$}} 32 define i32 @test1(i32 %n) { 33 entry: 34 br label %loop 35 36 loop: 37 %a = phi i32 [ 0, %entry ], [ %b, %loop ] 38 %b = phi i32 [ 1, %entry ], [ %a, %loop ] 39 %i = phi i32 [ 0, %entry ], [ %i.next, %loop ] 40 41 %i.next = add i32 %i, 1 42 %t = icmp slt i32 %i.next, %n 43 br i1 %t, label %loop, label %exit 44 45 exit: 46 ret i32 %a 47 } 48
