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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt < %s -passes='instcombine<max-iterations=1>' -S | FileCheck %s3; These tests check the optimizations specific to4; pointers being relocated at a statepoint.5 6 7declare void @func()8 9define i1 @test_null(i1 %cond) gc "statepoint-example" {10; CHECK-LABEL: @test_null(11; CHECK-NEXT: entry:12; CHECK-NEXT: br i1 [[COND:%.*]], label [[LEFT:%.*]], label [[RIGHT:%.*]]13; CHECK: right:14; CHECK-NEXT: br label [[MERGE:%.*]]15; CHECK: left:16; CHECK-NEXT: [[SAFEPOINT_TOKEN:%.*]] = tail call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr nonnull elementtype(void ()) @func, i32 0, i32 0, i32 0, i32 0) [ "gc-live"() ]17; CHECK-NEXT: br label [[MERGE]]18; CHECK: merge:19; CHECK-NEXT: [[SAFEPOINT_TOKEN2:%.*]] = tail call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr nonnull elementtype(void ()) @func, i32 0, i32 0, i32 0, i32 0) [ "gc-live"() ]20; CHECK-NEXT: ret i1 true21;22entry:23 br i1 %cond, label %left, label %right24 25right:26 br label %merge27 28left:29 %safepoint_token = tail call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(void ()) @func, i32 0, i32 0, i32 0, i32 0) ["gc-live" (ptr addrspace(1) null)]30 %pnew = call ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %safepoint_token, i32 0, i32 0)31 br label %merge32 33merge:34 %pnew_phi = phi ptr addrspace(1) [null, %right], [%pnew, %left]35 %safepoint_token2 = tail call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(void ()) @func, i32 0, i32 0, i32 0, i32 0) ["gc-live" (ptr addrspace(1) %pnew_phi)]36 %pnew2 = call ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %safepoint_token2, i32 0, i32 0)37 %cmp = icmp eq ptr addrspace(1) %pnew2, null38 ret i1 %cmp39}40 41define ptr addrspace(1) @test_undef(i1 %cond) gc "statepoint-example" {42; CHECK-LABEL: @test_undef(43; CHECK-NEXT: entry:44; CHECK-NEXT: br i1 [[COND:%.*]], label [[LEFT:%.*]], label [[RIGHT:%.*]]45; CHECK: right:46; CHECK-NEXT: br label [[MERGE:%.*]]47; CHECK: left:48; CHECK-NEXT: [[SAFEPOINT_TOKEN:%.*]] = tail call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr nonnull elementtype(void ()) @func, i32 0, i32 0, i32 0, i32 0) [ "gc-live"() ]49; CHECK-NEXT: br label [[MERGE]]50; CHECK: merge:51; CHECK-NEXT: [[SAFEPOINT_TOKEN2:%.*]] = tail call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr nonnull elementtype(void ()) @func, i32 0, i32 0, i32 0, i32 0) [ "gc-live"() ]52; CHECK-NEXT: ret ptr addrspace(1) undef53;54entry:55 br i1 %cond, label %left, label %right56 57right:58 br label %merge59 60left:61 %safepoint_token = tail call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(void ()) @func, i32 0, i32 0, i32 0, i32 0) ["gc-live" (ptr addrspace(1) undef)]62 %pnew = call ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %safepoint_token, i32 0, i32 0)63 br label %merge64 65merge:66 %pnew_phi = phi ptr addrspace(1) [undef, %right], [%pnew, %left]67 %safepoint_token2 = tail call token (i64, i32, ptr, i32, i32, ...) @llvm.experimental.gc.statepoint.p0(i64 0, i32 0, ptr elementtype(void ()) @func, i32 0, i32 0, i32 0, i32 0) ["gc-live" (ptr addrspace(1) %pnew_phi)]68 %pnew2 = call ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token %safepoint_token2, i32 0, i32 0)69 ret ptr addrspace(1) %pnew270}71 72declare token @llvm.experimental.gc.statepoint.p0(i64, i32, ptr, i32, i32, ...)73declare ptr addrspace(1) @llvm.experimental.gc.relocate.p1(token, i32, i32)74