mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-23 04:52:54 +02:00
6088441f33
Summary: This change solves the same problem as D30726, except that this only throws out the bathwater. AST was not correctly tracking and deleting UnknownInstructions via handles. The existing code only tracks "pointers" in its `ASTCallbackVH`, so an UnknownInstruction (that isn't also def'ing a pointer used by another memory instruction) never gets a `ASTCallbackVH`. There are two other ways to solve this problem: - Use the `PointerRec` scheme for both known and unknown instructions. - Use a `CallbackVH` that erases the offending Instruction from the UnknownInstruction list. Both of the above changes seemed to be significantly (and unnecessarily IMO) more complex than this. Reviewers: chandlerc, dberlin, hfinkel, reames Subscribers: mcrosier, llvm-commits Differential Revision: https://reviews.llvm.org/D30849 llvm-svn: 297539
19 lines
378 B
LLVM
19 lines
378 B
LLVM
; RUN: opt -S -licm -loop-unswitch -licm < %s | FileCheck %s
|
|
|
|
declare void @llvm.experimental.guard(i1, ...)
|
|
|
|
define void @test() {
|
|
; CHECK-LABEL: @test(
|
|
; CHECK-NOT: guard
|
|
entry:
|
|
br label %header
|
|
|
|
header:
|
|
br label %loop
|
|
|
|
loop:
|
|
%0 = icmp ult i32 0, 400
|
|
call void (i1, ...) @llvm.experimental.guard(i1 %0, i32 9) [ "deopt"() ]
|
|
br i1 undef, label %header, label %loop
|
|
}
|