| Vedant Kumar | c299006 | 2018-10-24 22:15:41 +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 | declare void @sideeffect(i64) |
| 7 | |
| 8 | declare i8* @realloc(i8* %ptr, i64 %size) |
| 9 | |
| 10 | declare void @free(i8* %ptr) |
| 11 | |
| 12 | declare void @sink() cold |
| 13 | |
| 14 | ; CHECK-LABEL: define {{.*}}@realloc2( |
| 15 | ; CHECK: call {{.*}}@sideeffect( |
| 16 | ; CHECK: call {{.*}}@realloc( |
| 17 | ; CHECK-LABEL: codeRepl: |
| Vedant Kumar | d129569 | 2018-12-03 22:40:21 +0000 | [diff] [blame^] | 18 | ; CHECK-NEXT: call {{.*}}@realloc2.cold.1(i64 %size, i8* %ptr, i8** %retval.0.ce.loc) |
| Vedant Kumar | c299006 | 2018-10-24 22:15:41 +0000 | [diff] [blame] | 19 | ; CHECK-LABEL: cleanup: |
| Vedant Kumar | d129569 | 2018-12-03 22:40:21 +0000 | [diff] [blame^] | 20 | ; CHECK-NEXT: phi i8* [ null, %if.then ], [ %call, %if.end ], [ %retval.0.ce.reload, %codeRepl ] |
| Vedant Kumar | c299006 | 2018-10-24 22:15:41 +0000 | [diff] [blame] | 21 | define i8* @realloc2(i8* %ptr, i64 %size) { |
| 22 | entry: |
| 23 | %0 = add i64 %size, -1 |
| 24 | %1 = icmp ugt i64 %0, 184549375 |
| 25 | br i1 %1, label %if.then, label %if.end |
| 26 | |
| 27 | if.then: ; preds = %entry |
| 28 | call void @sideeffect(i64 %size) |
| 29 | br label %cleanup |
| 30 | |
| 31 | if.end: ; preds = %entry |
| 32 | %call = call i8* @realloc(i8* %ptr, i64 %size) |
| 33 | %tobool1 = icmp eq i8* %call, null |
| 34 | br i1 %tobool1, label %if.then2, label %cleanup |
| 35 | |
| 36 | if.then2: ; preds = %if.end |
| 37 | call void @sideeffect(i64 %size) |
| 38 | call void @sink() |
| 39 | %tobool3 = icmp eq i8* %ptr, null |
| 40 | br i1 %tobool3, label %cleanup, label %if.then4 |
| 41 | |
| 42 | if.then4: ; preds = %if.then2 |
| 43 | call void @free(i8* %ptr) |
| 44 | br label %cleanup |
| 45 | |
| 46 | cleanup: ; preds = %if.end, %if.then4, %if.then2, %if.then |
| 47 | %retval.0 = phi i8* [ null, %if.then ], [ null, %if.then2 ], [ null, %if.then4 ], [ %call, %if.end ] |
| 48 | ret i8* %retval.0 |
| 49 | } |
| 50 | |
| 51 | ; CHECK-LABEL: define {{.*}}@realloc2.cold.1( |
| 52 | ; CHECK: call {{.*}}@sideeffect |
| 53 | ; CHECK: call {{.*}}@sink |
| 54 | ; CHECK: call {{.*}}@free |