| ; RUN: opt -S -passes=rewrite-statepoints-for-gc < %s | FileCheck %s |
| |
| ; Regression test to incorrectly testing fixed state causing infinite loop. |
| ; CHECK: test |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| declare void @bar(ptr addrspace(1) nocapture readonly) |
| declare noalias ptr addrspace(1) @foo() |
| |
| define ptr addrspace(1) @test(i1 %c, i1 %c1, i1 %c2, i1 %c3, i1 %c4, i1 %c5, i1 %c.exit) gc "statepoint-example" { |
| entry: |
| br i1 %c, label %ph.L, label %ph.R |
| ph.L: |
| %ph.L.p.b = call noalias nonnull ptr addrspace(1) @foo() |
| %ph.L.p = getelementptr i8, ptr addrspace(1) %ph.L.p.b, i64 8 |
| br label %ph.M |
| ph.R: |
| %ph.R.p = call noalias nonnull ptr addrspace(1) @foo() |
| br label %ph.M |
| ph.M: |
| %ph.M.p = phi ptr addrspace(1) [ %ph.L.p, %ph.L ], [ %ph.R.p, %ph.R ] |
| br label %header |
| |
| header: |
| %header.p = phi ptr addrspace(1) [ %ph.M.p, %ph.M ], [ %backedge.p, %backedge] |
| br i1 %c1, label %loop.M, label %loop.R |
| |
| loop.R: |
| br i1 %c2, label %loop.R.M, label %loop.R.R |
| |
| loop.R.R: |
| %loop.R.R.p = call noalias nonnull ptr addrspace(1) @foo() |
| br label %loop.R.M |
| |
| loop.R.M: |
| %loop.R.M.p = phi ptr addrspace(1) [ %header.p, %loop.R ], [ %loop.R.R.p, %loop.R.R ] |
| br label %loop.M |
| |
| loop.M: |
| %loop.M.p = phi ptr addrspace(1) [ %loop.R.M.p, %loop.R.M ], [ %header.p, %header ] |
| br i1 %c4, label %backedge, label %pre.backedge.R |
| |
| pre.backedge.R: |
| br i1 %c5, label %pre.backedge.R.L, label %pre.backedge.R.R |
| pre.backedge.R.L: |
| %pre.backedge.R.L.p.b = call noalias nonnull ptr addrspace(1) @foo() |
| %pre.backedge.R.L.p = getelementptr i8, ptr addrspace(1) %pre.backedge.R.L.p.b, i64 8 |
| br label %pre.backedge.R.M |
| pre.backedge.R.R: |
| %pre.backedge.R.R.p = call noalias nonnull ptr addrspace(1) @foo() |
| br label %pre.backedge.R.M |
| pre.backedge.R.M: |
| %pre.backedge.R.M.p = phi ptr addrspace(1) [ %pre.backedge.R.L.p, %pre.backedge.R.L ], [ %pre.backedge.R.R.p, %pre.backedge.R.R ] |
| br label %backedge |
| |
| backedge: |
| %backedge.p = phi ptr addrspace(1) [ %pre.backedge.R.M.p, %pre.backedge.R.M ], [ %loop.M.p, %loop.M ] |
| br i1 %c.exit, label %header, label %exit |
| |
| exit: ; preds = %3, %1 |
| call void @bar(ptr addrspace(1) align 8 %header.p) [ "deopt"() ] |
| ret ptr addrspace(1) %header.p |
| } |