| ; RUN: opt -S -hotcoldsplit -hotcoldsplit-threshold=0 < %s | FileCheck %s |
| |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-apple-macosx10.14.0" |
| |
| ; CHECK-LABEL: define {{.*}}@exit_block_with_same_incoming_vals |
| ; CHECK: call {{.*}}@exit_block_with_same_incoming_vals.cold.1( |
| ; CHECK-NOT: br i1 undef |
| ; CHECK: phi i32 [ 0, %entry ], [ %p.ce.reload, %codeRepl ] |
| define void @exit_block_with_same_incoming_vals(i32 %cond) { |
| entry: |
| %tobool = icmp eq i32 %cond, 0 |
| br i1 %tobool, label %if.end, label %coldbb |
| |
| coldbb: |
| call void @sink() |
| call void @sideeffect() |
| br i1 undef, label %if.end, label %coldbb2 |
| |
| coldbb2: |
| %p2 = phi i32 [0, %coldbb], [1, %coldbb2] |
| br i1 undef, label %if.end, label %coldbb2 |
| |
| if.end: |
| %p = phi i32 [0, %entry], [1, %coldbb], [1, %coldbb2] |
| ret void |
| } |
| |
| ; CHECK-LABEL: define {{.*}}@exit_block_with_distinct_incoming_vals |
| ; CHECK: call {{.*}}@exit_block_with_distinct_incoming_vals.cold.1( |
| ; CHECK-NOT: br i1 undef |
| ; CHECK: phi i32 [ 0, %entry ], [ %p.ce.reload, %codeRepl ] |
| define void @exit_block_with_distinct_incoming_vals(i32 %cond) { |
| entry: |
| %tobool = icmp eq i32 %cond, 0 |
| br i1 %tobool, label %if.end, label %coldbb |
| |
| coldbb: |
| call void @sink() |
| call void @sideeffect() |
| br i1 undef, label %if.end, label %coldbb2 |
| |
| coldbb2: |
| %p2 = phi i32 [0, %coldbb], [1, %coldbb2] |
| br i1 undef, label %if.end, label %coldbb2 |
| |
| if.end: |
| %p = phi i32 [0, %entry], [1, %coldbb], [2, %coldbb2] |
| ret void |
| } |
| |
| declare void @sink() cold |
| |
| declare void @sideeffect() |
