[llvm] 084ad1e - [Test] Add more tests showing duplicate PHIs generated by RS4GC (NFC)

Dmitry Makogon via llvm-commits llvm-commits at lists.llvm.org
Tue Apr 19 09:06:06 PDT 2022


Author: Dmitry Makogon
Date: 2022-04-19T23:05:50+07:00
New Revision: 084ad1ebeee2af9f7a9b464a346a7ca51d6f83dc

URL: https://github.com/llvm/llvm-project/commit/084ad1ebeee2af9f7a9b464a346a7ca51d6f83dc
DIFF: https://github.com/llvm/llvm-project/commit/084ad1ebeee2af9f7a9b464a346a7ca51d6f83dc.diff

LOG: [Test] Add more tests showing duplicate PHIs generated by RS4GC (NFC)

This adds more tests with derived pointers.

Added: 
    

Modified: 
    llvm/test/Transforms/RewriteStatepointsForGC/base-pointers-14.ll

Removed: 
    


################################################################################
diff  --git a/llvm/test/Transforms/RewriteStatepointsForGC/base-pointers-14.ll b/llvm/test/Transforms/RewriteStatepointsForGC/base-pointers-14.ll
index 14ae5a1434093..e607213c6a235 100644
--- a/llvm/test/Transforms/RewriteStatepointsForGC/base-pointers-14.ll
+++ b/llvm/test/Transforms/RewriteStatepointsForGC/base-pointers-14.ll
@@ -143,9 +143,121 @@ merge2:
   ret i8 addrspace(1)* %b6
 }
 
-define i8 addrspace(1)* @test5(i1 %c, i32 %n, i8 addrspace(1)* %b1, i8 addrspace(1)* %b2) gc "statepoint-example" {
+define i8 addrspace(1)* @test5(i1 %c1, i1 %c2, i8 addrspace(1)* %b1, i8 addrspace(1)* %b2) gc "statepoint-example" {
 ; CHECK-LABEL: @test5(
 ; CHECK-NEXT:  entry:
+; CHECK-NEXT:    br i1 [[C1:%.*]], label [[LOOP:%.*]], label [[MERGE2:%.*]]
+; CHECK:       loop:
+; CHECK-NEXT:    [[B3:%.*]] = phi i8 addrspace(1)* [ [[B2:%.*]], [[ENTRY:%.*]] ], [ [[B5:%.*]], [[LEFT:%.*]] ]
+; CHECK-NEXT:    [[B4:%.*]] = addrspacecast i8 addrspace(1)* [[B3]] to i8*
+; CHECK-NEXT:    br i1 [[C1]], label [[LEFT]], label [[MERGE2]]
+; CHECK:       left:
+; CHECK-NEXT:    [[B5]] = addrspacecast i8* [[B4]] to i8 addrspace(1)*
+; CHECK-NEXT:    br i1 [[C2:%.*]], label [[LOOP]], label [[MERGE2]]
+; CHECK:       merge2:
+; CHECK-NEXT:    [[B6_BASE:%.*]] = phi i8 addrspace(1)* [ [[B1:%.*]], [[ENTRY]] ], [ [[B2]], [[LOOP]] ], [ [[B2]], [[LEFT]] ], !is_base_value !0
+; CHECK-NEXT:    [[B6:%.*]] = phi i8 addrspace(1)* [ [[B1]], [[ENTRY]] ], [ [[B3]], [[LOOP]] ], [ [[B5]], [[LEFT]] ]
+; CHECK-NEXT:    [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* elementtype(void ()) @foo, i32 0, i32 0, i32 0, i32 0) [ "deopt"(), "gc-live"(i8 addrspace(1)* [[B6]], i8 addrspace(1)* [[B6_BASE]]) ]
+; CHECK-NEXT:    [[B6_RELOCATED:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN]], i32 1, i32 0)
+; CHECK-NEXT:    [[B6_BASE_RELOCATED:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN]], i32 1, i32 1)
+; CHECK-NEXT:    ret i8 addrspace(1)* [[B6_RELOCATED]]
+;
+entry:
+  br i1 %c1, label %loop, label %merge2
+
+loop:
+  %b3 = phi i8 addrspace(1)* [ %b2, %entry ], [ %b5, %left ]
+  %b4 = addrspacecast i8 addrspace(1)* %b3 to i8*
+  br i1 %c1, label %left, label %merge2
+
+left:
+  %b5 = addrspacecast i8* %b4 to i8 addrspace(1)*
+  br i1 %c2, label %loop, label %merge2
+
+merge2:
+  %b6 = phi i8 addrspace(1)* [ %b1, %entry ], [ %b3, %loop ], [ %b5, %left ]
+  call void @foo() [ "deopt"() ]
+  ret i8 addrspace(1)* %b6
+}
+
+define i8 addrspace(1)* @test6(i1 %c1, i1 %c2, i8 addrspace(1)* %b1, i8 addrspace(1)* %b2) gc "statepoint-example" {
+; CHECK-LABEL: @test6(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    br i1 [[C1:%.*]], label [[LOOP:%.*]], label [[MERGE2:%.*]]
+; CHECK:       loop:
+; CHECK-NEXT:    [[B3:%.*]] = phi i8 addrspace(1)* [ [[B2:%.*]], [[ENTRY:%.*]] ], [ [[B3]], [[LEFT:%.*]] ]
+; CHECK-NEXT:    br i1 [[C1]], label [[LEFT]], label [[MERGE2]]
+; CHECK:       left:
+; CHECK-NEXT:    br i1 [[C2:%.*]], label [[LOOP]], label [[MERGE2]]
+; CHECK:       merge2:
+; CHECK-NEXT:    [[B6_BASE:%.*]] = phi i8 addrspace(1)* [ [[B1:%.*]], [[ENTRY]] ], [ [[B2]], [[LOOP]] ], [ [[B2]], [[LEFT]] ], !is_base_value !0
+; CHECK-NEXT:    [[B6:%.*]] = phi i8 addrspace(1)* [ [[B1]], [[ENTRY]] ], [ [[B3]], [[LOOP]] ], [ [[B3]], [[LEFT]] ]
+; CHECK-NEXT:    [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* elementtype(void ()) @foo, i32 0, i32 0, i32 0, i32 0) [ "deopt"(), "gc-live"(i8 addrspace(1)* [[B6]], i8 addrspace(1)* [[B6_BASE]]) ]
+; CHECK-NEXT:    [[B6_RELOCATED:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN]], i32 1, i32 0)
+; CHECK-NEXT:    [[B6_BASE_RELOCATED:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN]], i32 1, i32 1)
+; CHECK-NEXT:    ret i8 addrspace(1)* [[B6_RELOCATED]]
+;
+entry:
+  br i1 %c1, label %loop, label %merge2
+
+loop:
+  %b3 = phi i8 addrspace(1)* [ %b2, %entry ], [ %b4, %left ]
+  br i1 %c1, label %left, label %merge2
+
+left:
+  %b4 = phi i8 addrspace(1)* [ %b3, %loop ]
+  br i1 %c2, label %loop, label %merge2
+
+merge2:
+  %b6 = phi i8 addrspace(1)* [ %b1, %entry ], [ %b3, %loop ], [ %b4, %left ]
+  call void @foo() [ "deopt"() ]
+  ret i8 addrspace(1)* %b6
+}
+
+declare i8 addrspace(1)* @returned_arg(i8 addrspace(1)* returned %p)
+
+define i8 addrspace(1)* @test7(i1 %c1, i1 %c2, i8 addrspace(1)* %b1, i8 addrspace(1)* %b2) gc "statepoint-example" {
+; CHECK-LABEL: @test7(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    br i1 [[C1:%.*]], label [[LOOP:%.*]], label [[MERGE2:%.*]]
+; CHECK:       loop:
+; CHECK-NEXT:    [[B3_BASE:%.*]] = phi i8 addrspace(1)* [ [[B2:%.*]], [[ENTRY:%.*]] ], [ [[B41:%.*]], [[LEFT:%.*]] ], !is_base_value !0
+; CHECK-NEXT:    [[B3:%.*]] = phi i8 addrspace(1)* [ [[B2]], [[ENTRY]] ], [ [[B41]], [[LEFT]] ]
+; CHECK-NEXT:    br i1 [[C1]], label [[LEFT]], label [[MERGE2]]
+; CHECK:       left:
+; CHECK-NEXT:    [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, i8 addrspace(1)* (i8 addrspace(1)*)*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_p1i8p1i8f(i64 2882400000, i32 0, i8 addrspace(1)* (i8 addrspace(1)*)* elementtype(i8 addrspace(1)* (i8 addrspace(1)*)) @returned_arg, i32 1, i32 0, i8 addrspace(1)* [[B3]], i32 0, i32 0) [ "gc-live"(i8 addrspace(1)* [[B3_BASE]], i8 addrspace(1)* [[B3]]) ]
+; CHECK-NEXT:    [[B41]] = call i8 addrspace(1)* @llvm.experimental.gc.result.p1i8(token [[STATEPOINT_TOKEN]])
+; CHECK-NEXT:    [[B3_BASE_RELOCATED:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN]], i32 0, i32 0)
+; CHECK-NEXT:    [[B3_RELOCATED:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN]], i32 0, i32 1)
+; CHECK-NEXT:    br i1 [[C2:%.*]], label [[LOOP]], label [[MERGE2]]
+; CHECK:       merge2:
+; CHECK-NEXT:    [[B6_BASE:%.*]] = phi i8 addrspace(1)* [ [[B1:%.*]], [[ENTRY]] ], [ [[B3_BASE]], [[LOOP]] ], [ [[B41]], [[LEFT]] ], !is_base_value !0
+; CHECK-NEXT:    [[B6:%.*]] = phi i8 addrspace(1)* [ [[B1]], [[ENTRY]] ], [ [[B3]], [[LOOP]] ], [ [[B41]], [[LEFT]] ]
+; CHECK-NEXT:    [[STATEPOINT_TOKEN2:%.*]] = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* elementtype(void ()) @foo, i32 0, i32 0, i32 0, i32 0) [ "deopt"(), "gc-live"(i8 addrspace(1)* [[B6]], i8 addrspace(1)* [[B6_BASE]]) ]
+; CHECK-NEXT:    [[B6_RELOCATED:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN2]], i32 1, i32 0)
+; CHECK-NEXT:    [[B6_BASE_RELOCATED:%.*]] = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token [[STATEPOINT_TOKEN2]], i32 1, i32 1)
+; CHECK-NEXT:    ret i8 addrspace(1)* [[B6_RELOCATED]]
+;
+entry:
+  br i1 %c1, label %loop, label %merge2
+
+loop:
+  %b3 = phi i8 addrspace(1)* [ %b2, %entry ], [ %b4, %left ]
+  br i1 %c1, label %left, label %merge2
+
+left:
+  %b4 = call i8 addrspace(1)* @returned_arg(i8 addrspace(1)* %b3)
+  br i1 %c2, label %loop, label %merge2
+
+merge2:
+  %b6 = phi i8 addrspace(1)* [ %b1, %entry ], [ %b3, %loop ], [ %b4, %left ]
+  call void @foo() [ "deopt"() ]
+  ret i8 addrspace(1)* %b6
+}
+
+define i8 addrspace(1)* @test8(i1 %c, i32 %n, i8 addrspace(1)* %b1, i8 addrspace(1)* %b2) gc "statepoint-example" {
+; CHECK-LABEL: @test8(
+; CHECK-NEXT:  entry:
 ; CHECK-NEXT:    br label [[LEFT:%.*]]
 ; CHECK:       left:
 ; CHECK-NEXT:    br i1 [[C:%.*]], label [[LOOP:%.*]], label [[MERGE2:%.*]]


        


More information about the llvm-commits mailing list