c59ee7ec62
Hot cold splitting should not outline: 1. Basic blocks with token type instructions 1. Functions with scoped EH personality (As suggested by Vedant in https://github.com/llvm/llvm-project/issues/40056#issuecomment-981009129) Fixes: #40056
73 lines
2.0 KiB
LLVM
73 lines
2.0 KiB
LLVM
; RUN: opt -passes=hotcoldsplit -hotcoldsplit-threshold=-1 -S < %s | FileCheck %s
|
|
; Hot cold splitting should not outline:
|
|
; 1. Basic blocks with token type instructions
|
|
; 2. Functions with scoped EH personality
|
|
|
|
target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-pc-windows-msvc19.0.0"
|
|
|
|
; CHECK-LABEL: define {{.*}}@with_funclet
|
|
; CHECK-NOT: with_funclet.cold
|
|
define void @with_funclet() personality ptr @__CxxFrameHandler3 {
|
|
entry:
|
|
invoke void @fYAXXZ()
|
|
to label %normal unwind label %exception
|
|
|
|
normal: ; preds = %entry
|
|
ret void
|
|
|
|
exception: ; preds = %entry
|
|
%0 = cleanuppad within none []
|
|
call void @terminateYAXXZ() [ "funclet"(token %0) ]
|
|
br label %continueexception
|
|
|
|
continueexception: ; preds = %exception
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: define {{.*}}@with_personality
|
|
; CHECK-NOT: with_personality.cold
|
|
define void @with_personality(i32 %cond) personality ptr @__CxxFrameHandler3 {
|
|
entry:
|
|
%cond.addr = alloca i32
|
|
store i32 %cond, ptr %cond.addr
|
|
%0 = load i32, ptr %cond.addr
|
|
%tobool = icmp ne i32 %0, 0
|
|
br i1 %tobool, label %if.then, label %if.end2
|
|
|
|
if.then: ; preds = %entry
|
|
%1 = load i32, ptr %cond.addr
|
|
%cmp = icmp sgt i32 %1, 10
|
|
br i1 %cmp, label %if.then1, label %if.else
|
|
|
|
if.then1: ; preds = %if.then
|
|
call void @sideeffect(i32 0)
|
|
br label %if.end
|
|
|
|
if.else: ; preds = %if.then
|
|
call void @sideeffect(i32 1)
|
|
br label %if.end
|
|
|
|
if.end: ; preds = %if.else, %if.then1
|
|
call void (...) @sink()
|
|
ret void
|
|
|
|
if.end2: ; preds = %entry
|
|
call void @sideeffect(i32 2)
|
|
ret void
|
|
}
|
|
|
|
declare i32 @__CxxFrameHandler3(...)
|
|
|
|
declare void @fYAXXZ()
|
|
|
|
declare void @bar() #0
|
|
|
|
declare void @terminateYAXXZ()
|
|
|
|
declare void @sideeffect(i32)
|
|
|
|
declare void @sink(...) #0
|
|
|
|
attributes #0 = { cold }
|