| Dan Gohman | 1cf96c0 | 2015-12-09 16:23:59 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -asm-verbose=false -verify-machineinstrs | FileCheck %s |
| Dan Gohman | 25d2a0d | 2015-09-08 12:39:25 +0000 | [diff] [blame] | 2 | |
| Dan Gohman | 25d2a0d | 2015-09-08 12:39:25 +0000 | [diff] [blame] | 3 | ; Test that phis are lowered. |
| 4 | |
| Dan Gohman | 0c6f5ac | 2016-01-07 03:19:23 +0000 | [diff] [blame] | 5 | target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128" |
| Dan Gohman | 25d2a0d | 2015-09-08 12:39:25 +0000 | [diff] [blame] | 6 | target triple = "wasm32-unknown-unknown" |
| 7 | |
| Dan Gohman | 4f52e00 | 2015-09-09 00:52:47 +0000 | [diff] [blame] | 8 | ; Basic phi triangle. |
| 9 | |
| Dan Gohman | e51c058 | 2015-10-06 00:27:55 +0000 | [diff] [blame] | 10 | ; CHECK-LABEL: test0: |
| Dan Gohman | 700515f | 2015-11-23 21:55:57 +0000 | [diff] [blame] | 11 | ; CHECK: div_s $[[NUM0:[0-9]+]]=, $0, $pop[[NUM1:[0-9]+]]{{$}} |
| Dan Gohman | 4ba4816 | 2015-11-18 16:12:01 +0000 | [diff] [blame] | 12 | ; CHECK: return $[[NUM0]]{{$}} |
| Dan Gohman | 25d2a0d | 2015-09-08 12:39:25 +0000 | [diff] [blame] | 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 | } |
| Dan Gohman | 4f52e00 | 2015-09-09 00:52:47 +0000 | [diff] [blame] | 24 | |
| 25 | ; Swap phis. |
| 26 | |
| Dan Gohman | e51c058 | 2015-10-06 00:27:55 +0000 | [diff] [blame] | 27 | ; CHECK-LABEL: test1: |
| Dan Gohman | a4730cf | 2016-01-07 18:49:53 +0000 | [diff] [blame^] | 28 | ; CHECK: .LBB1_1: |
| Dan Gohman | 700515f | 2015-11-23 21:55:57 +0000 | [diff] [blame] | 29 | ; CHECK: copy_local $[[NUM0:[0-9]+]]=, $[[NUM1:[0-9]+]]{{$}} |
| 30 | ; CHECK: copy_local $[[NUM1]]=, $[[NUM2:[0-9]+]]{{$}} |
| 31 | ; CHECK: copy_local $[[NUM2]]=, $[[NUM0]]{{$}} |
| Dan Gohman | 4f52e00 | 2015-09-09 00:52:47 +0000 | [diff] [blame] | 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 | } |