1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature 2; RUN: opt -S -passes=ipsccp < %s | FileCheck %s 3 4@extern = global i32 0 5 6define i32 @call_assume_self_user() { 7; CHECK-LABEL: define {{[^@]+}}@call_assume_self_user() { 8; CHECK-NEXT: [[CALL:%.*]] = call i32 @assume_self_user() 9; CHECK-NEXT: ret i32 0 10; 11 %call = call i32 @assume_self_user() 12 ret i32 0 13} 14 15; Function address direct user is assume-like intrinsic. 16; 17; Make sure this doesn't hit "We can only zap functions where all live 18; users have a concrete value" 19define internal i32 @assume_self_user() { 20; CHECK-LABEL: define {{[^@]+}}@assume_self_user() { 21; CHECK-NEXT: [[OBJSIZE:%.*]] = call i32 @llvm.objectsize.i32.p0(ptr @assume_self_user, i1 false, i1 false, i1 false) 22; CHECK-NEXT: store i32 [[OBJSIZE]], ptr @extern, align 4 23; CHECK-NEXT: ret i32 poison 24; 25 %objsize = call i32 @llvm.objectsize.i32.p0(ptr @assume_self_user, i1 false, i1 false, i1 false) 26 store i32 %objsize, ptr @extern 27 ret i32 0 28} 29 30 31; The objectsize call is an "assume like intrinsic" that can be 32; ignored for address taken purposes. The user of @constexpr_self_user 33; is a constant expression cast, so that the use call site does not 34; directly appear as a user. 35 36define i32 @callsite_with_returned() { 37; CHECK-LABEL: define {{[^@]+}}@callsite_with_returned() { 38; CHECK-NEXT: [[CALL:%.*]] = call addrspace(1) i32 @constexpr_self_user(i32 123) 39; CHECK-NEXT: ret i32 0 40; 41 %call = call addrspace(1) i32 @constexpr_self_user(i32 returned 123) 42 ret i32 0 43} 44 45; Has constexpr cast user in an assume-like intrinsic. Make sure we 46; don't assert on a cast<CallBase> for the user, and still remove 47; returned from the caller. 48define internal i32 @constexpr_self_user(i32 %arg0) addrspace(1) { 49; CHECK-LABEL: define {{[^@]+}}@constexpr_self_user 50; CHECK-SAME: (i32 [[ARG0:%.*]]) addrspace(1) { 51; CHECK-NEXT: [[OBJSIZE:%.*]] = call i32 @llvm.objectsize.i32.p0(ptr addrspacecast (ptr addrspace(1) @constexpr_self_user to ptr), i1 false, i1 false, i1 false) 52; CHECK-NEXT: store i32 [[OBJSIZE]], ptr @extern, align 4 53; CHECK-NEXT: ret i32 poison 54; 55 %objsize = call i32 @llvm.objectsize.i32.p0(ptr addrspacecast (ptr addrspace(1) @constexpr_self_user to ptr), i1 false, i1 false, i1 false) 56 store i32 %objsize, ptr @extern 57 ret i32 %arg0 58} 59 60declare i32 @llvm.objectsize.i32.p0(ptr, i1 immarg, i1 immarg, i1 immarg) #0 61 62attributes #0 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) } 63