; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt -S -passes=strip-gc-relocates,instcombine < %s | FileCheck %s ; test utility/debugging pass which removes gc.relocates, inserted by -rewrite-statepoints-for-gc declare void @use_obj32(ptr addrspace(1)) "gc-leaf-function" declare void @g() declare token @llvm.experimental.gc.statepoint.p0(i64, i32, ptr, i32, i32, ...) declare ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token, i32, i32) #0 declare void @do_safepoint() declare ptr addrspace(1) @new_instance() #1 ; Simple case: remove gc.relocate define ptr addrspace(1) @test1(ptr addrspace(1) %arg) gc "statepoint-example" { ; CHECK-LABEL: @test1( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr nonnull elementtype(void ()) @g, i32 0, i32 0, i32 0, i32 0) [ "deopt"(i32 100), "gc-live"() ] ; CHECK-NEXT: ret ptr addrspace(1) [[ARG:%.*]] ; entry: %statepoint_token = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(void ()) @g, i32 0, i32 0, i32 0, i32 0) ["gc-live"(ptr addrspace(1) %arg), "deopt" (i32 100)] %arg.relocated = call coldcc ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %statepoint_token, i32 0, i32 0) ; (%arg, %arg) ret ptr addrspace(1) %arg.relocated } ; Remove gc.relocates in presence of nested relocates. define void @test2(ptr addrspace(1) %base) gc "statepoint-example" { ; CHECK-LABEL: @test2( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[PTR_GEP1:%.*]] = getelementptr i32, ptr addrspace(1) [[BASE:%.*]], i64 30 ; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr nonnull elementtype(void ()) @do_safepoint, i32 0, i32 0, i32 0, i32 0) [ "gc-live"() ] ; CHECK-NEXT: call void @use_obj32(ptr addrspace(1) [[PTR_GEP1]]) ; CHECK-NEXT: [[STATEPOINT_TOKEN1:%.*]] = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr nonnull elementtype(void ()) @do_safepoint, i32 0, i32 0, i32 0, i32 0) [ "gc-live"() ] ; CHECK-NEXT: call void @use_obj32(ptr addrspace(1) [[PTR_GEP1]]) ; CHECK-NEXT: ret void ; entry: %ptr.gep = getelementptr i32, ptr addrspace(1) %base, i32 15 %ptr.gep1 = getelementptr i32, ptr addrspace(1) %ptr.gep, i32 15 %statepoint_token = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(void ()) @do_safepoint, i32 0, i32 0, i32 0, i32 0) ["gc-live"(ptr addrspace(1) %ptr.gep1, ptr addrspace(1) %base)] %ptr.gep1.relocated = call coldcc ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %statepoint_token, i32 1, i32 0) ; (%base, %ptr.gep1) %base.relocated = call coldcc ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %statepoint_token, i32 1, i32 1) ; (%base, %base) call void @use_obj32(ptr addrspace(1) %ptr.gep1.relocated) %statepoint_token1 = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(void ()) @do_safepoint, i32 0, i32 0, i32 0, i32 0) ["gc-live"(ptr addrspace(1) %ptr.gep1.relocated, ptr addrspace(1) %base.relocated)] %ptr.gep1.relocated2 = call coldcc ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %statepoint_token1, i32 1, i32 0) ; (%base.relocated, %ptr.gep1.relocated) %base.relocated3 = call coldcc ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %statepoint_token1, i32 1, i32 1) ; (%base.relocated, %base.relocated) call void @use_obj32(ptr addrspace(1) %ptr.gep1.relocated2) ret void } ; landing pad gc.relocates removed by instcombine since it has no uses. define ptr addrspace(1) @test3(ptr addrspace(1) %arg) gc "statepoint-example" personality i32 8 { ; CHECK-LABEL: @test3( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = invoke token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr nonnull elementtype(void ()) @g, i32 0, i32 0, i32 0, i32 0) [ "deopt"(i32 100), "gc-live"() ] ; CHECK-NEXT: to label [[NORMAL_DEST:%.*]] unwind label [[UNWIND_DEST:%.*]] ; CHECK: normal_dest: ; CHECK-NEXT: ret ptr addrspace(1) [[ARG:%.*]] ; CHECK: unwind_dest: ; CHECK-NEXT: [[LPAD:%.*]] = landingpad token ; CHECK-NEXT: cleanup ; CHECK-NEXT: resume token undef ; entry: %statepoint_token = invoke token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(void ()) @g, i32 0, i32 0, i32 0, i32 0) ["gc-live"(ptr addrspace(1) %arg), "deopt" (i32 100)] to label %normal_dest unwind label %unwind_dest normal_dest: ; preds = %entry %arg.relocated1 = call coldcc ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %statepoint_token, i32 0, i32 0) ; (%arg, %arg) ret ptr addrspace(1) %arg.relocated1 unwind_dest: ; preds = %entry %lpad = landingpad token cleanup %arg.relocated = call coldcc ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %lpad, i32 0, i32 0) ; (%arg, %arg) resume token undef } ; in presence of phi define void @test4(i1 %cond) gc "statepoint-example" { ; CHECK-LABEL: @test4( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[BASE1:%.*]] = call ptr addrspace(1) @new_instance() ; CHECK-NEXT: [[BASE2:%.*]] = call ptr addrspace(1) @new_instance() ; CHECK-NEXT: br i1 [[COND:%.*]], label [[HERE:%.*]], label [[THERE:%.*]] ; CHECK: here: ; CHECK-NEXT: br label [[MERGE:%.*]] ; CHECK: there: ; CHECK-NEXT: br label [[MERGE]] ; CHECK: merge: ; CHECK-NEXT: [[BASEPHI_BASE:%.*]] = phi ptr addrspace(1) [ [[BASE1]], [[HERE]] ], [ [[BASE2]], [[THERE]] ], !is_base_value !0 ; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr nonnull elementtype(void ()) @do_safepoint, i32 0, i32 0, i32 0, i32 0) [ "gc-live"() ] ; CHECK-NEXT: [[PTR_GEP_REMAT:%.*]] = getelementptr i32, ptr addrspace(1) [[BASEPHI_BASE]], i64 15 ; CHECK-NEXT: call void @use_obj32(ptr addrspace(1) [[PTR_GEP_REMAT]]) ; CHECK-NEXT: ret void ; entry: %base1 = call ptr addrspace(1) @new_instance() %base2 = call ptr addrspace(1) @new_instance() br i1 %cond, label %here, label %there here: ; preds = %entry br label %merge there: ; preds = %entry br label %merge merge: ; preds = %there, %here %basephi.base = phi ptr addrspace(1) [ %base1, %here ], [ %base2, %there ], !is_base_value !0 %basephi = phi ptr addrspace(1) [ %base1, %here ], [ %base2, %there ] %ptr.gep = getelementptr i32, ptr addrspace(1) %basephi, i32 15 %statepoint_token = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(void ()) @do_safepoint, i32 0, i32 0, i32 0, i32 0) ["gc-live"(ptr addrspace(1) %basephi.base)] %basephi.base.relocated = call coldcc ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %statepoint_token, i32 0, i32 0) ; (%basephi.base, %basephi.base) %ptr.gep.remat = getelementptr i32, ptr addrspace(1) %basephi.base.relocated, i32 15 call void @use_obj32(ptr addrspace(1) %ptr.gep.remat) ret void } ; The gc.relocate type is different from %arg, but removing the gc.relocate, ; needs a bitcast to be added from ptr addrspace(1) to ptr addrspace(1) define ptr addrspace(1) @test5(ptr addrspace(1) %arg) gc "statepoint-example" { ; CHECK-LABEL: @test5( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[STATEPOINT_TOKEN:%.*]] = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr nonnull elementtype(void ()) @g, i32 0, i32 0, i32 0, i32 0) [ "deopt"(i32 100), "gc-live"() ] ; CHECK-NEXT: ret ptr addrspace(1) [[ARG:%.*]] ; entry: %statepoint_token = call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 2882400000, i32 0, ptr elementtype(void ()) @g, i32 0, i32 0, i32 0, i32 0) ["gc-live"(ptr addrspace(1) %arg), "deopt" (i32 100)] %arg.relocated = call coldcc ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %statepoint_token, i32 0, i32 0) ; (%arg, %arg) ret ptr addrspace(1) %arg.relocated } attributes #0 = { nounwind readonly } attributes #1 = { nounwind "gc-leaf-function" } !0 = !{}