| Vedant Kumar | 03aaa3e | 2018-12-07 20:23:52 +0000 | [diff] [blame^] | 1 | ; RUN: opt -S -hotcoldsplit < %s | FileCheck %s |
| 2 | |
| 3 | target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| 4 | target triple = "x86_64-apple-macosx10.14.0" |
| 5 | |
| 6 | ; CHECK-LABEL: define {{.*}}@exit_block_with_same_incoming_vals |
| 7 | ; CHECK: call {{.*}}@exit_block_with_same_incoming_vals.cold.1( |
| 8 | ; CHECK-NOT: br i1 undef |
| 9 | ; CHECK: phi i32 [ 0, %entry ], [ %p.ce.reload, %codeRepl ] |
| 10 | define void @exit_block_with_same_incoming_vals(i32 %cond) { |
| 11 | entry: |
| 12 | %tobool = icmp eq i32 %cond, 0 |
| 13 | br i1 %tobool, label %if.end, label %coldbb |
| 14 | |
| 15 | coldbb: |
| 16 | call void @sink() |
| 17 | call void @sideeffect() |
| 18 | call void @sideeffect() |
| 19 | br i1 undef, label %if.end, label %coldbb2 |
| 20 | |
| 21 | coldbb2: |
| 22 | %p2 = phi i32 [0, %coldbb], [1, %coldbb2] |
| 23 | br i1 undef, label %if.end, label %coldbb2 |
| 24 | |
| 25 | if.end: |
| 26 | %p = phi i32 [0, %entry], [1, %coldbb], [1, %coldbb2] |
| 27 | ret void |
| 28 | } |
| 29 | |
| 30 | ; CHECK-LABEL: define {{.*}}@exit_block_with_distinct_incoming_vals |
| 31 | ; CHECK: call {{.*}}@exit_block_with_distinct_incoming_vals.cold.1( |
| 32 | ; CHECK-NOT: br i1 undef |
| 33 | ; CHECK: phi i32 [ 0, %entry ], [ %p.ce.reload, %codeRepl ] |
| 34 | define void @exit_block_with_distinct_incoming_vals(i32 %cond) { |
| 35 | entry: |
| 36 | %tobool = icmp eq i32 %cond, 0 |
| 37 | br i1 %tobool, label %if.end, label %coldbb |
| 38 | |
| 39 | coldbb: |
| 40 | call void @sink() |
| 41 | call void @sideeffect() |
| 42 | call void @sideeffect() |
| 43 | br i1 undef, label %if.end, label %coldbb2 |
| 44 | |
| 45 | coldbb2: |
| 46 | %p2 = phi i32 [0, %coldbb], [1, %coldbb2] |
| 47 | br i1 undef, label %if.end, label %coldbb2 |
| 48 | |
| 49 | if.end: |
| 50 | %p = phi i32 [0, %entry], [1, %coldbb], [2, %coldbb2] |
| 51 | ret void |
| 52 | } |
| 53 | |
| 54 | declare void @sink() cold |
| 55 | |
| 56 | declare void @sideeffect() |