-
Notifications
You must be signed in to change notification settings - Fork 10.8k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
[CodeGen][GC] Skip function without GC in
GCLoweringPass
(#84421)
- Loading branch information
1 parent
162180d
commit edc2066
Showing
2 changed files
with
65 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,62 @@ | ||
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py | ||
; RUN: opt -S -passes='require<collector-metadata>,function(gc-lowering)' < %s | FileCheck %s | ||
|
||
declare ptr @llvm_gc_allocate(i32) | ||
declare void @llvm_gc_initialize(i32) | ||
|
||
declare void @llvm.gcroot(ptr, ptr) | ||
declare void @llvm.gcwrite(ptr, ptr, ptr) | ||
|
||
define i32 @main() gc "shadow-stack" { | ||
; CHECK-LABEL: define i32 @main() gc "shadow-stack" { | ||
; CHECK-NEXT: entry: | ||
; CHECK-NEXT: [[A:%.*]] = alloca ptr, align 8 | ||
; CHECK-NEXT: store ptr null, ptr [[A]], align 8 | ||
; CHECK-NEXT: [[B:%.*]] = alloca ptr, align 8 | ||
; CHECK-NEXT: store ptr null, ptr [[B]], align 8 | ||
; CHECK-NEXT: call void @llvm_gc_initialize(i32 1048576) | ||
; CHECK-NEXT: call void @llvm.gcroot(ptr [[A]], ptr null) | ||
; CHECK-NEXT: [[APTR:%.*]] = call ptr @llvm_gc_allocate(i32 10) | ||
; CHECK-NEXT: store ptr [[APTR]], ptr [[A]], align 8 | ||
; CHECK-NEXT: call void @llvm.gcroot(ptr [[B]], ptr null) | ||
; CHECK-NEXT: [[B_UPGRD_1:%.*]] = call ptr @llvm_gc_allocate(i32 8) | ||
; CHECK-NEXT: store ptr [[B_UPGRD_1]], ptr [[B]], align 8 | ||
; CHECK-NEXT: [[B_1:%.*]] = load ptr, ptr [[B]], align 8 | ||
; CHECK-NEXT: [[A_1:%.*]] = load ptr, ptr [[A]], align 8 | ||
; CHECK-NEXT: store ptr [[A_1]], ptr [[B_1]], align 8 | ||
; CHECK-NEXT: ret i32 0 | ||
; | ||
entry: | ||
%A = alloca ptr | ||
%B = alloca ptr | ||
|
||
call void @llvm_gc_initialize(i32 1048576) ; Start with 1MB heap | ||
|
||
;; ptr A; | ||
call void @llvm.gcroot(ptr %A, ptr null) | ||
|
||
;; A = gcalloc(10); | ||
%Aptr = call ptr @llvm_gc_allocate(i32 10) | ||
store ptr %Aptr, ptr %A | ||
|
||
;; ptr B; | ||
call void @llvm.gcroot(ptr %B, ptr null) | ||
|
||
;; B = gcalloc(4); | ||
%B.upgrd.1 = call ptr @llvm_gc_allocate(i32 8) | ||
store ptr %B.upgrd.1, ptr %B | ||
|
||
;; *B = A; | ||
%B.1 = load ptr, ptr %B | ||
%A.1 = load ptr, ptr %A | ||
call void @llvm.gcwrite(ptr %A.1, ptr %B.upgrd.1, ptr %B.1) | ||
|
||
ret i32 0 | ||
} | ||
|
||
define void @no_gc() { | ||
; CHECK-LABEL: define void @no_gc() { | ||
; CHECK-NEXT: ret void | ||
; | ||
ret void | ||
} |