; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals ; RUN: opt -passes=attributor -S < %s | FileCheck %s --check-prefixes=CHECK,OWRDL,UPTO2,UNLIM,OUNLM ; RUN: opt -passes=attributor -attributor-print-call-graph -S -disable-output < %s | FileCheck %s --check-prefixes=DOT ; RUN: opt -passes=attributor --attributor-max-specializations-per-call-base=2 -S < %s | FileCheck %s --check-prefixes=CHECK,OWRDL,UPTO2,LIMI2 ; RUN: opt -passes=attributor --attributor-max-specializations-per-call-base=0 -S < %s | FileCheck %s --check-prefixes=CHECK,OWRDL,LIMI0 ; RUN: opt -passes=attributor --attributor-assume-closed-world -S < %s | FileCheck %s --check-prefixes=CHECK,UPTO2,UNLIM,CWRLD ;. ; CHECK: @[[G:[a-zA-Z0-9_$"\\.-]+]] = global ptr @usedByGlobal ;. define dso_local void @func1() { ; CHECK-LABEL: @func1( ; CHECK-NEXT: br label [[TMP2:%.*]] ; CHECK: 1: ; CHECK-NEXT: unreachable ; CHECK: 2: ; CHECK-NEXT: call void @func3() ; CHECK-NEXT: ret void ; %1 = icmp ne i32 0, 0 br i1 %1, label %2, label %3 2: ; preds = %0 call void @func2(i1 false) br label %3 3: ; preds = %2, %0 call void () @func3() ret void } declare void @func3() define internal void @func4() { ; CHECK-LABEL: @func4( ; CHECK-NEXT: call void @func3() ; CHECK-NEXT: ret void ; call void @func3() ret void } define internal void @internal_good() { ; CHECK-LABEL: @internal_good( ; CHECK-NEXT: call void @void(ptr @func4) ; CHECK-NEXT: ret void ; call void @void(ptr @func4) ret void } define dso_local void @func2(i1 %c) { ; UPTO2-LABEL: @func2( ; UPTO2-NEXT: [[F:%.*]] = select i1 [[C:%.*]], ptr @internal_good, ptr @func4 ; UPTO2-NEXT: [[TMP1:%.*]] = icmp eq ptr [[F]], @func4 ; UPTO2-NEXT: br i1 [[TMP1]], label [[TMP2:%.*]], label [[TMP3:%.*]] ; UPTO2: 2: ; UPTO2-NEXT: call void @func4() ; UPTO2-NEXT: br label [[TMP6:%.*]] ; UPTO2: 3: ; UPTO2-NEXT: br i1 true, label [[TMP4:%.*]], label [[TMP5:%.*]] ; UPTO2: 4: ; UPTO2-NEXT: call void @internal_good() ; UPTO2-NEXT: br label [[TMP6]] ; UPTO2: 5: ; UPTO2-NEXT: unreachable ; UPTO2: 6: ; UPTO2-NEXT: ret void ; ; LIMI0-LABEL: @func2( ; LIMI0-NEXT: [[F:%.*]] = select i1 [[C:%.*]], ptr @internal_good, ptr @func4 ; LIMI0-NEXT: call void [[F]](), !callees !0 ; LIMI0-NEXT: ret void ; %f = select i1 %c, ptr @internal_good, ptr @func4 call void %f() ret void } define void @func5(i32 %0) { ; UPTO2-LABEL: @func5( ; UPTO2-NEXT: [[TMP2:%.*]] = icmp ne i32 [[TMP0:%.*]], 0 ; UPTO2-NEXT: [[TMP3:%.*]] = select i1 [[TMP2]], ptr @func4, ptr @func3 ; UPTO2-NEXT: [[TMP4:%.*]] = icmp eq ptr [[TMP3]], @func3 ; UPTO2-NEXT: br i1 [[TMP4]], label [[TMP5:%.*]], label [[TMP6:%.*]] ; UPTO2: 5: ; UPTO2-NEXT: call void @func3() ; UPTO2-NEXT: br label [[TMP9:%.*]] ; UPTO2: 6: ; UPTO2-NEXT: br i1 true, label [[TMP7:%.*]], label [[TMP8:%.*]] ; UPTO2: 7: ; UPTO2-NEXT: call void @func4() ; UPTO2-NEXT: br label [[TMP9]] ; UPTO2: 8: ; UPTO2-NEXT: unreachable ; UPTO2: 9: ; UPTO2-NEXT: ret void ; ; LIMI0-LABEL: @func5( ; LIMI0-NEXT: [[TMP2:%.*]] = icmp ne i32 [[TMP0:%.*]], 0 ; LIMI0-NEXT: [[TMP3:%.*]] = select i1 [[TMP2]], ptr @func4, ptr @func3 ; LIMI0-NEXT: call void [[TMP3]](), !callees !1 ; LIMI0-NEXT: ret void ; %2 = icmp ne i32 %0, 0 %3 = select i1 %2, ptr @func4, ptr @func3 call void () %3() ret void } define i32 @musttailCall(i32 %0) { ; CHECK-LABEL: @musttailCall( ; CHECK-NEXT: [[TMP2:%.*]] = icmp ne i32 [[TMP0:%.*]], 0 ; CHECK-NEXT: [[TMP3:%.*]] = select i1 [[TMP2]], ptr @func4, ptr @func3 ; CHECK-NEXT: [[C:%.*]] = musttail call i32 [[TMP3]](i32 0) ; CHECK-NEXT: ret i32 [[C]] ; %2 = icmp ne i32 %0, 0 %3 = select i1 %2, ptr @func4, ptr @func3 %c = musttail call i32 (i32) %3(i32 0) ret i32 %c } declare i32 @retI32() declare void @takeI32(i32) declare float @retFloatTakeFloat(float) ; This callee is always filtered out because of the noundef argument declare float @retFloatTakeFloatFloatNoundef(float, float noundef) declare void @void() define i32 @non_matching_fp1(i1 %c1, i1 %c2, i1 %c) { ; UNLIM-LABEL: @non_matching_fp1( ; UNLIM-NEXT: [[FP1:%.*]] = select i1 [[C1:%.*]], ptr @retI32, ptr @takeI32 ; UNLIM-NEXT: [[FP2:%.*]] = select i1 [[C2:%.*]], ptr @retFloatTakeFloat, ptr @void ; UNLIM-NEXT: [[FP:%.*]] = select i1 [[C:%.*]], ptr [[FP1]], ptr [[FP2]] ; UNLIM-NEXT: [[TMP1:%.*]] = icmp eq ptr [[FP]], @takeI32 ; UNLIM-NEXT: br i1 [[TMP1]], label [[TMP2:%.*]], label [[TMP3:%.*]] ; UNLIM: 2: ; UNLIM-NEXT: [[CALL1:%.*]] = call i32 @takeI32(i32 42) ; UNLIM-NEXT: br label [[TMP15:%.*]] ; UNLIM: 3: ; UNLIM-NEXT: [[TMP4:%.*]] = icmp eq ptr [[FP]], @retI32 ; UNLIM-NEXT: br i1 [[TMP4]], label [[TMP5:%.*]], label [[TMP6:%.*]] ; UNLIM: 5: ; UNLIM-NEXT: [[CALL2:%.*]] = call i32 @retI32(i32 42) ; UNLIM-NEXT: br label [[TMP15]] ; UNLIM: 6: ; UNLIM-NEXT: [[TMP7:%.*]] = icmp eq ptr [[FP]], @void ; UNLIM-NEXT: br i1 [[TMP7]], label [[TMP8:%.*]], label [[TMP9:%.*]] ; UNLIM: 8: ; UNLIM-NEXT: [[CALL3:%.*]] = call i32 @void(i32 42) ; UNLIM-NEXT: br label [[TMP15]] ; UNLIM: 9: ; UNLIM-NEXT: br i1 true, label [[TMP10:%.*]], label [[TMP14:%.*]] ; UNLIM: 10: ; UNLIM-NEXT: [[TMP11:%.*]] = bitcast i32 42 to float ; UNLIM-NEXT: [[TMP12:%.*]] = call float @retFloatTakeFloat(float [[TMP11]]) ; UNLIM-NEXT: [[TMP13:%.*]] = bitcast float [[TMP12]] to i32 ; UNLIM-NEXT: br label [[TMP15]] ; UNLIM: 14: ; UNLIM-NEXT: unreachable ; UNLIM: 15: ; UNLIM-NEXT: [[CALL_PHI:%.*]] = phi i32 [ [[CALL1]], [[TMP2]] ], [ [[CALL2]], [[TMP5]] ], [ [[CALL3]], [[TMP8]] ], [ [[TMP13]], [[TMP10]] ] ; UNLIM-NEXT: ret i32 [[CALL_PHI]] ; ; LIMI2-LABEL: @non_matching_fp1( ; LIMI2-NEXT: [[FP1:%.*]] = select i1 [[C1:%.*]], ptr @retI32, ptr @takeI32 ; LIMI2-NEXT: [[FP2:%.*]] = select i1 [[C2:%.*]], ptr @retFloatTakeFloat, ptr @void ; LIMI2-NEXT: [[FP:%.*]] = select i1 [[C:%.*]], ptr [[FP1]], ptr [[FP2]] ; LIMI2-NEXT: [[TMP1:%.*]] = icmp eq ptr [[FP]], @takeI32 ; LIMI2-NEXT: br i1 [[TMP1]], label [[TMP2:%.*]], label [[TMP3:%.*]] ; LIMI2: 2: ; LIMI2-NEXT: [[CALL1:%.*]] = call i32 @takeI32(i32 42) ; LIMI2-NEXT: br label [[TMP7:%.*]] ; LIMI2: 3: ; LIMI2-NEXT: [[TMP4:%.*]] = icmp eq ptr [[FP]], @retI32 ; LIMI2-NEXT: br i1 [[TMP4]], label [[TMP5:%.*]], label [[TMP6:%.*]] ; LIMI2: 5: ; LIMI2-NEXT: [[CALL2:%.*]] = call i32 @retI32(i32 42) ; LIMI2-NEXT: br label [[TMP7]] ; LIMI2: 6: ; LIMI2-NEXT: [[CALL3:%.*]] = call i32 [[FP]](i32 42), !callees !0 ; LIMI2-NEXT: br label [[TMP7]] ; LIMI2: 7: ; LIMI2-NEXT: [[CALL_PHI:%.*]] = phi i32 [ [[CALL1]], [[TMP2]] ], [ [[CALL2]], [[TMP5]] ], [ [[CALL3]], [[TMP6]] ] ; LIMI2-NEXT: ret i32 [[CALL_PHI]] ; ; LIMI0-LABEL: @non_matching_fp1( ; LIMI0-NEXT: [[FP1:%.*]] = select i1 [[C1:%.*]], ptr @retI32, ptr @takeI32 ; LIMI0-NEXT: [[FP2:%.*]] = select i1 [[C2:%.*]], ptr @retFloatTakeFloat, ptr @void ; LIMI0-NEXT: [[FP:%.*]] = select i1 [[C:%.*]], ptr [[FP1]], ptr [[FP2]] ; LIMI0-NEXT: [[CALL:%.*]] = call i32 [[FP]](i32 42), !callees !2 ; LIMI0-NEXT: ret i32 [[CALL]] ; %fp1 = select i1 %c1, ptr @retI32, ptr @takeI32 %fp2 = select i1 %c2, ptr @retFloatTakeFloat, ptr @void %fp = select i1 %c, ptr %fp1, ptr %fp2 %call = call i32 %fp(i32 42) ret i32 %call } define i32 @non_matching_fp1_noundef(i1 %c1, i1 %c2, i1 %c) { ; UNLIM-LABEL: @non_matching_fp1_noundef( ; UNLIM-NEXT: [[FP1:%.*]] = select i1 [[C1:%.*]], ptr @retI32, ptr @takeI32 ; UNLIM-NEXT: [[FP2:%.*]] = select i1 [[C2:%.*]], ptr @retFloatTakeFloatFloatNoundef, ptr @void ; UNLIM-NEXT: [[FP:%.*]] = select i1 [[C:%.*]], ptr [[FP1]], ptr [[FP2]] ; UNLIM-NEXT: [[TMP1:%.*]] = icmp eq ptr [[FP]], @takeI32 ; UNLIM-NEXT: br i1 [[TMP1]], label [[TMP2:%.*]], label [[TMP3:%.*]] ; UNLIM: 2: ; UNLIM-NEXT: [[CALL1:%.*]] = call i32 @takeI32(i32 42) ; UNLIM-NEXT: br label [[TMP9:%.*]] ; UNLIM: 3: ; UNLIM-NEXT: [[TMP4:%.*]] = icmp eq ptr [[FP]], @retI32 ; UNLIM-NEXT: br i1 [[TMP4]], label [[TMP5:%.*]], label [[TMP6:%.*]] ; UNLIM: 5: ; UNLIM-NEXT: [[CALL2:%.*]] = call i32 @retI32(i32 42) ; UNLIM-NEXT: br label [[TMP9]] ; UNLIM: 6: ; UNLIM-NEXT: br i1 true, label [[TMP7:%.*]], label [[TMP8:%.*]] ; UNLIM: 7: ; UNLIM-NEXT: [[CALL3:%.*]] = call i32 @void(i32 42) ; UNLIM-NEXT: br label [[TMP9]] ; UNLIM: 8: ; UNLIM-NEXT: unreachable ; UNLIM: 9: ; UNLIM-NEXT: [[CALL_PHI:%.*]] = phi i32 [ [[CALL1]], [[TMP2]] ], [ [[CALL2]], [[TMP5]] ], [ [[CALL3]], [[TMP7]] ] ; UNLIM-NEXT: ret i32 [[CALL_PHI]] ; ; LIMI2-LABEL: @non_matching_fp1_noundef( ; LIMI2-NEXT: [[FP1:%.*]] = select i1 [[C1:%.*]], ptr @retI32, ptr @takeI32 ; LIMI2-NEXT: [[FP2:%.*]] = select i1 [[C2:%.*]], ptr @retFloatTakeFloatFloatNoundef, ptr @void ; LIMI2-NEXT: [[FP:%.*]] = select i1 [[C:%.*]], ptr [[FP1]], ptr [[FP2]] ; LIMI2-NEXT: [[TMP1:%.*]] = icmp eq ptr [[FP]], @takeI32 ; LIMI2-NEXT: br i1 [[TMP1]], label [[TMP2:%.*]], label [[TMP3:%.*]] ; LIMI2: 2: ; LIMI2-NEXT: [[CALL1:%.*]] = call i32 @takeI32(i32 42) ; LIMI2-NEXT: br label [[TMP7:%.*]] ; LIMI2: 3: ; LIMI2-NEXT: [[TMP4:%.*]] = icmp eq ptr [[FP]], @retI32 ; LIMI2-NEXT: br i1 [[TMP4]], label [[TMP5:%.*]], label [[TMP6:%.*]] ; LIMI2: 5: ; LIMI2-NEXT: [[CALL2:%.*]] = call i32 @retI32(i32 42) ; LIMI2-NEXT: br label [[TMP7]] ; LIMI2: 6: ; LIMI2-NEXT: [[CALL3:%.*]] = call i32 [[FP]](i32 42), !callees !1 ; LIMI2-NEXT: br label [[TMP7]] ; LIMI2: 7: ; LIMI2-NEXT: [[CALL_PHI:%.*]] = phi i32 [ [[CALL1]], [[TMP2]] ], [ [[CALL2]], [[TMP5]] ], [ [[CALL3]], [[TMP6]] ] ; LIMI2-NEXT: ret i32 [[CALL_PHI]] ; ; LIMI0-LABEL: @non_matching_fp1_noundef( ; LIMI0-NEXT: [[FP1:%.*]] = select i1 [[C1:%.*]], ptr @retI32, ptr @takeI32 ; LIMI0-NEXT: [[FP2:%.*]] = select i1 [[C2:%.*]], ptr @retFloatTakeFloatFloatNoundef, ptr @void ; LIMI0-NEXT: [[FP:%.*]] = select i1 [[C:%.*]], ptr [[FP1]], ptr [[FP2]] ; LIMI0-NEXT: [[CALL:%.*]] = call i32 [[FP]](i32 42), !callees !3 ; LIMI0-NEXT: ret i32 [[CALL]] ; %fp1 = select i1 %c1, ptr @retI32, ptr @takeI32 %fp2 = select i1 %c2, ptr @retFloatTakeFloatFloatNoundef, ptr @void %fp = select i1 %c, ptr %fp1, ptr %fp2 %call = call i32 %fp(i32 42) ret i32 %call } define void @non_matching_fp2(i1 %c1, i1 %c2, i1 %c, ptr %unknown) { ; OUNLM-LABEL: @non_matching_fp2( ; OUNLM-NEXT: [[FP1:%.*]] = select i1 [[C1:%.*]], ptr @retI32, ptr @takeI32 ; OUNLM-NEXT: [[FP2:%.*]] = select i1 [[C2:%.*]], ptr @retFloatTakeFloat, ptr [[UNKNOWN:%.*]] ; OUNLM-NEXT: [[FP:%.*]] = select i1 [[C:%.*]], ptr [[FP1]], ptr [[FP2]] ; OUNLM-NEXT: [[TMP1:%.*]] = icmp eq ptr [[FP]], @takeI32 ; OUNLM-NEXT: br i1 [[TMP1]], label [[TMP2:%.*]], label [[TMP3:%.*]] ; OUNLM: 2: ; OUNLM-NEXT: call void @takeI32() ; OUNLM-NEXT: br label [[TMP10:%.*]] ; OUNLM: 3: ; OUNLM-NEXT: [[TMP4:%.*]] = icmp eq ptr [[FP]], @retI32 ; OUNLM-NEXT: br i1 [[TMP4]], label [[TMP5:%.*]], label [[TMP6:%.*]] ; OUNLM: 5: ; OUNLM-NEXT: call void @retI32() ; OUNLM-NEXT: br label [[TMP10]] ; OUNLM: 6: ; OUNLM-NEXT: [[TMP7:%.*]] = icmp eq ptr [[FP]], @retFloatTakeFloat ; OUNLM-NEXT: br i1 [[TMP7]], label [[TMP8:%.*]], label [[TMP9:%.*]] ; OUNLM: 8: ; OUNLM-NEXT: call void @retFloatTakeFloat() ; OUNLM-NEXT: br label [[TMP10]] ; OUNLM: 9: ; OUNLM-NEXT: call void [[FP]]() ; OUNLM-NEXT: br label [[TMP10]] ; OUNLM: 10: ; OUNLM-NEXT: ret void ; ; LIMI2-LABEL: @non_matching_fp2( ; LIMI2-NEXT: [[FP1:%.*]] = select i1 [[C1:%.*]], ptr @retI32, ptr @takeI32 ; LIMI2-NEXT: [[FP2:%.*]] = select i1 [[C2:%.*]], ptr @retFloatTakeFloat, ptr [[UNKNOWN:%.*]] ; LIMI2-NEXT: [[FP:%.*]] = select i1 [[C:%.*]], ptr [[FP1]], ptr [[FP2]] ; LIMI2-NEXT: [[TMP1:%.*]] = icmp eq ptr [[FP]], @takeI32 ; LIMI2-NEXT: br i1 [[TMP1]], label [[TMP2:%.*]], label [[TMP3:%.*]] ; LIMI2: 2: ; LIMI2-NEXT: call void @takeI32() ; LIMI2-NEXT: br label [[TMP7:%.*]] ; LIMI2: 3: ; LIMI2-NEXT: [[TMP4:%.*]] = icmp eq ptr [[FP]], @retI32 ; LIMI2-NEXT: br i1 [[TMP4]], label [[TMP5:%.*]], label [[TMP6:%.*]] ; LIMI2: 5: ; LIMI2-NEXT: call void @retI32() ; LIMI2-NEXT: br label [[TMP7]] ; LIMI2: 6: ; LIMI2-NEXT: call void [[FP]]() ; LIMI2-NEXT: br label [[TMP7]] ; LIMI2: 7: ; LIMI2-NEXT: ret void ; ; LIMI0-LABEL: @non_matching_fp2( ; LIMI0-NEXT: [[FP1:%.*]] = select i1 [[C1:%.*]], ptr @retI32, ptr @takeI32 ; LIMI0-NEXT: [[FP2:%.*]] = select i1 [[C2:%.*]], ptr @retFloatTakeFloat, ptr [[UNKNOWN:%.*]] ; LIMI0-NEXT: [[FP:%.*]] = select i1 [[C:%.*]], ptr [[FP1]], ptr [[FP2]] ; LIMI0-NEXT: call void [[FP]]() ; LIMI0-NEXT: ret void ; ; CWRLD-LABEL: @non_matching_fp2( ; CWRLD-NEXT: [[FP1:%.*]] = select i1 [[C1:%.*]], ptr @retI32, ptr @takeI32 ; CWRLD-NEXT: [[FP2:%.*]] = select i1 [[C2:%.*]], ptr @retFloatTakeFloat, ptr [[UNKNOWN:%.*]] ; CWRLD-NEXT: [[FP:%.*]] = select i1 [[C:%.*]], ptr [[FP1]], ptr [[FP2]] ; CWRLD-NEXT: [[TMP1:%.*]] = icmp eq ptr [[FP]], @takeI32 ; CWRLD-NEXT: br i1 [[TMP1]], label [[TMP2:%.*]], label [[TMP3:%.*]] ; CWRLD: 2: ; CWRLD-NEXT: call void @takeI32() ; CWRLD-NEXT: br label [[TMP21:%.*]] ; CWRLD: 3: ; CWRLD-NEXT: [[TMP4:%.*]] = icmp eq ptr [[FP]], @retI32 ; CWRLD-NEXT: br i1 [[TMP4]], label [[TMP5:%.*]], label [[TMP6:%.*]] ; CWRLD: 5: ; CWRLD-NEXT: call void @retI32() ; CWRLD-NEXT: br label [[TMP21]] ; CWRLD: 6: ; CWRLD-NEXT: [[TMP7:%.*]] = icmp eq ptr [[FP]], @func3 ; CWRLD-NEXT: br i1 [[TMP7]], label [[TMP8:%.*]], label [[TMP9:%.*]] ; CWRLD: 8: ; CWRLD-NEXT: call void @func3() ; CWRLD-NEXT: br label [[TMP21]] ; CWRLD: 9: ; CWRLD-NEXT: [[TMP10:%.*]] = icmp eq ptr [[FP]], @func4 ; CWRLD-NEXT: br i1 [[TMP10]], label [[TMP11:%.*]], label [[TMP12:%.*]] ; CWRLD: 11: ; CWRLD-NEXT: call void @func4() ; CWRLD-NEXT: br label [[TMP21]] ; CWRLD: 12: ; CWRLD-NEXT: [[TMP13:%.*]] = icmp eq ptr [[FP]], @retFloatTakeFloat ; CWRLD-NEXT: br i1 [[TMP13]], label [[TMP14:%.*]], label [[TMP15:%.*]] ; CWRLD: 14: ; CWRLD-NEXT: call void @retFloatTakeFloat() ; CWRLD-NEXT: br label [[TMP21]] ; CWRLD: 15: ; CWRLD-NEXT: [[TMP16:%.*]] = icmp eq ptr [[FP]], @retFloatTakeFloatFloatNoundef ; CWRLD-NEXT: br i1 [[TMP16]], label [[TMP17:%.*]], label [[TMP18:%.*]] ; CWRLD: 17: ; CWRLD-NEXT: call void @retFloatTakeFloatFloatNoundef() ; CWRLD-NEXT: br label [[TMP21]] ; CWRLD: 18: ; CWRLD-NEXT: br i1 true, label [[TMP19:%.*]], label [[TMP20:%.*]] ; CWRLD: 19: ; CWRLD-NEXT: call void @void() ; CWRLD-NEXT: br label [[TMP21]] ; CWRLD: 20: ; CWRLD-NEXT: unreachable ; CWRLD: 21: ; CWRLD-NEXT: ret void ; %fp1 = select i1 %c1, ptr @retI32, ptr @takeI32 %fp2 = select i1 %c2, ptr @retFloatTakeFloat, ptr %unknown %fp = select i1 %c, ptr %fp1, ptr %fp2 call void %fp() ret void } define i32 @non_matching_unknown(i1 %c, ptr %fn) { ; OUNLM-LABEL: @non_matching_unknown( ; OUNLM-NEXT: [[FP:%.*]] = select i1 [[C:%.*]], ptr @retI32, ptr [[FN:%.*]] ; OUNLM-NEXT: [[TMP1:%.*]] = icmp eq ptr [[FP]], @retI32 ; OUNLM-NEXT: br i1 [[TMP1]], label [[TMP2:%.*]], label [[TMP3:%.*]] ; OUNLM: 2: ; OUNLM-NEXT: [[CALL1:%.*]] = call i32 @retI32(i32 42) ; OUNLM-NEXT: br label [[TMP4:%.*]] ; OUNLM: 3: ; OUNLM-NEXT: [[CALL2:%.*]] = call i32 [[FP]](i32 42) ; OUNLM-NEXT: br label [[TMP4]] ; OUNLM: 4: ; OUNLM-NEXT: [[CALL_PHI:%.*]] = phi i32 [ [[CALL1]], [[TMP2]] ], [ [[CALL2]], [[TMP3]] ] ; OUNLM-NEXT: ret i32 [[CALL_PHI]] ; ; LIMI2-LABEL: @non_matching_unknown( ; LIMI2-NEXT: [[FP:%.*]] = select i1 [[C:%.*]], ptr @retI32, ptr [[FN:%.*]] ; LIMI2-NEXT: [[TMP1:%.*]] = icmp eq ptr [[FP]], @retI32 ; LIMI2-NEXT: br i1 [[TMP1]], label [[TMP2:%.*]], label [[TMP3:%.*]] ; LIMI2: 2: ; LIMI2-NEXT: [[CALL1:%.*]] = call i32 @retI32(i32 42) ; LIMI2-NEXT: br label [[TMP4:%.*]] ; LIMI2: 3: ; LIMI2-NEXT: [[CALL2:%.*]] = call i32 [[FP]](i32 42) ; LIMI2-NEXT: br label [[TMP4]] ; LIMI2: 4: ; LIMI2-NEXT: [[CALL_PHI:%.*]] = phi i32 [ [[CALL1]], [[TMP2]] ], [ [[CALL2]], [[TMP3]] ] ; LIMI2-NEXT: ret i32 [[CALL_PHI]] ; ; LIMI0-LABEL: @non_matching_unknown( ; LIMI0-NEXT: [[FP:%.*]] = select i1 [[C:%.*]], ptr @retI32, ptr [[FN:%.*]] ; LIMI0-NEXT: [[CALL:%.*]] = call i32 [[FP]](i32 42) ; LIMI0-NEXT: ret i32 [[CALL]] ; ; CWRLD-LABEL: @non_matching_unknown( ; CWRLD-NEXT: [[FP:%.*]] = select i1 [[C:%.*]], ptr @retI32, ptr [[FN:%.*]] ; CWRLD-NEXT: [[TMP1:%.*]] = icmp eq ptr [[FP]], @func3 ; CWRLD-NEXT: br i1 [[TMP1]], label [[TMP2:%.*]], label [[TMP3:%.*]] ; CWRLD: 2: ; CWRLD-NEXT: [[CALL1:%.*]] = call i32 @func3(i32 42) ; CWRLD-NEXT: br label [[TMP24:%.*]] ; CWRLD: 3: ; CWRLD-NEXT: [[TMP4:%.*]] = icmp eq ptr [[FP]], @func4 ; CWRLD-NEXT: br i1 [[TMP4]], label [[TMP5:%.*]], label [[TMP6:%.*]] ; CWRLD: 5: ; CWRLD-NEXT: [[CALL2:%.*]] = call i32 @func4(i32 42) ; CWRLD-NEXT: br label [[TMP24]] ; CWRLD: 6: ; CWRLD-NEXT: [[TMP7:%.*]] = icmp eq ptr [[FP]], @retI32 ; CWRLD-NEXT: br i1 [[TMP7]], label [[TMP8:%.*]], label [[TMP9:%.*]] ; CWRLD: 8: ; CWRLD-NEXT: [[CALL3:%.*]] = call i32 @retI32(i32 42) ; CWRLD-NEXT: br label [[TMP24]] ; CWRLD: 9: ; CWRLD-NEXT: [[TMP10:%.*]] = icmp eq ptr [[FP]], @takeI32 ; CWRLD-NEXT: br i1 [[TMP10]], label [[TMP11:%.*]], label [[TMP12:%.*]] ; CWRLD: 11: ; CWRLD-NEXT: [[CALL4:%.*]] = call i32 @takeI32(i32 42) ; CWRLD-NEXT: br label [[TMP24]] ; CWRLD: 12: ; CWRLD-NEXT: [[TMP13:%.*]] = icmp eq ptr [[FP]], @retFloatTakeFloat ; CWRLD-NEXT: br i1 [[TMP13]], label [[TMP14:%.*]], label [[TMP18:%.*]] ; CWRLD: 14: ; CWRLD-NEXT: [[TMP15:%.*]] = bitcast i32 42 to float ; CWRLD-NEXT: [[TMP16:%.*]] = call float @retFloatTakeFloat(float [[TMP15]]) ; CWRLD-NEXT: [[TMP17:%.*]] = bitcast float [[TMP16]] to i32 ; CWRLD-NEXT: br label [[TMP24]] ; CWRLD: 18: ; CWRLD-NEXT: [[TMP19:%.*]] = icmp eq ptr [[FP]], @retFloatTakeFloatFloatNoundef ; CWRLD-NEXT: br i1 [[TMP19]], label [[TMP20:%.*]], label [[TMP21:%.*]] ; CWRLD: 20: ; CWRLD-NEXT: [[CALL5:%.*]] = call i32 @retFloatTakeFloatFloatNoundef(i32 42) ; CWRLD-NEXT: br label [[TMP24]] ; CWRLD: 21: ; CWRLD-NEXT: br i1 true, label [[TMP22:%.*]], label [[TMP23:%.*]] ; CWRLD: 22: ; CWRLD-NEXT: [[CALL6:%.*]] = call i32 @void(i32 42) ; CWRLD-NEXT: br label [[TMP24]] ; CWRLD: 23: ; CWRLD-NEXT: unreachable ; CWRLD: 24: ; CWRLD-NEXT: [[CALL_PHI:%.*]] = phi i32 [ [[CALL1]], [[TMP2]] ], [ [[CALL2]], [[TMP5]] ], [ [[CALL3]], [[TMP8]] ], [ [[CALL4]], [[TMP11]] ], [ [[TMP17]], [[TMP14]] ], [ [[CALL5]], [[TMP20]] ], [ [[CALL6]], [[TMP22]] ] ; CWRLD-NEXT: ret i32 [[CALL_PHI]] ; %fp = select i1 %c, ptr @retI32, ptr %fn %call = call i32 %fp(i32 42) ret i32 %call } ; This function is used in a "direct" call but with a different signature. ; We check that it does not show up above in any of the if-cascades because ; the address is not actually taken. declare void @usedOnlyInCastedDirectCall(i32) define void @usedOnlyInCastedDirectCallCaller() { ; CHECK-LABEL: @usedOnlyInCastedDirectCallCaller( ; CHECK-NEXT: call void @usedOnlyInCastedDirectCall() ; CHECK-NEXT: ret void ; call void @usedOnlyInCastedDirectCall() ret void } define internal void @usedByGlobal() { ; CHECK-LABEL: @usedByGlobal( ; CHECK-NEXT: ret void ; ret void } @G = global ptr @usedByGlobal define void @broker(ptr %unknown) !callback !0 { ; OWRDL-LABEL: @broker( ; OWRDL-NEXT: call void [[UNKNOWN:%.*]]() ; OWRDL-NEXT: ret void ; ; CWRLD-LABEL: @broker( ; CWRLD-NEXT: [[TMP1:%.*]] = icmp eq ptr [[UNKNOWN:%.*]], @func3 ; CWRLD-NEXT: br i1 [[TMP1]], label [[TMP2:%.*]], label [[TMP3:%.*]] ; CWRLD: 2: ; CWRLD-NEXT: call void @func3() ; CWRLD-NEXT: br label [[TMP21:%.*]] ; CWRLD: 3: ; CWRLD-NEXT: [[TMP4:%.*]] = icmp eq ptr [[UNKNOWN]], @func4 ; CWRLD-NEXT: br i1 [[TMP4]], label [[TMP5:%.*]], label [[TMP6:%.*]] ; CWRLD: 5: ; CWRLD-NEXT: call void @func4() ; CWRLD-NEXT: br label [[TMP21]] ; CWRLD: 6: ; CWRLD-NEXT: [[TMP7:%.*]] = icmp eq ptr [[UNKNOWN]], @retI32 ; CWRLD-NEXT: br i1 [[TMP7]], label [[TMP8:%.*]], label [[TMP9:%.*]] ; CWRLD: 8: ; CWRLD-NEXT: call void @retI32() ; CWRLD-NEXT: br label [[TMP21]] ; CWRLD: 9: ; CWRLD-NEXT: [[TMP10:%.*]] = icmp eq ptr [[UNKNOWN]], @takeI32 ; CWRLD-NEXT: br i1 [[TMP10]], label [[TMP11:%.*]], label [[TMP12:%.*]] ; CWRLD: 11: ; CWRLD-NEXT: call void @takeI32() ; CWRLD-NEXT: br label [[TMP21]] ; CWRLD: 12: ; CWRLD-NEXT: [[TMP13:%.*]] = icmp eq ptr [[UNKNOWN]], @retFloatTakeFloat ; CWRLD-NEXT: br i1 [[TMP13]], label [[TMP14:%.*]], label [[TMP15:%.*]] ; CWRLD: 14: ; CWRLD-NEXT: call void @retFloatTakeFloat() ; CWRLD-NEXT: br label [[TMP21]] ; CWRLD: 15: ; CWRLD-NEXT: [[TMP16:%.*]] = icmp eq ptr [[UNKNOWN]], @retFloatTakeFloatFloatNoundef ; CWRLD-NEXT: br i1 [[TMP16]], label [[TMP17:%.*]], label [[TMP18:%.*]] ; CWRLD: 17: ; CWRLD-NEXT: call void @retFloatTakeFloatFloatNoundef() ; CWRLD-NEXT: br label [[TMP21]] ; CWRLD: 18: ; CWRLD-NEXT: br i1 true, label [[TMP19:%.*]], label [[TMP20:%.*]] ; CWRLD: 19: ; CWRLD-NEXT: call void @void() ; CWRLD-NEXT: br label [[TMP21]] ; CWRLD: 20: ; CWRLD-NEXT: unreachable ; CWRLD: 21: ; CWRLD-NEXT: ret void ; call void %unknown() ret void } define void @func6() { ; CHECK-LABEL: @func6( ; CHECK-NEXT: call void @broker(ptr nocapture nofree noundef nonnull @func3) ; CHECK-NEXT: ret void ; call void @broker(ptr @func3) ret void } ; Cannot be internal_good as it is internal and we see all uses. ; Can be func4 since it escapes. define void @func7(ptr %unknown) { ; UPTO2-LABEL: @func7( ; UPTO2-NEXT: [[TMP1:%.*]] = icmp eq ptr [[UNKNOWN:%.*]], @func3 ; UPTO2-NEXT: br i1 [[TMP1]], label [[TMP2:%.*]], label [[TMP3:%.*]] ; UPTO2: 2: ; UPTO2-NEXT: call void @func3() ; UPTO2-NEXT: br label [[TMP6:%.*]] ; UPTO2: 3: ; UPTO2-NEXT: br i1 true, label [[TMP4:%.*]], label [[TMP5:%.*]] ; UPTO2: 4: ; UPTO2-NEXT: call void @func4() ; UPTO2-NEXT: br label [[TMP6]] ; UPTO2: 5: ; UPTO2-NEXT: unreachable ; UPTO2: 6: ; UPTO2-NEXT: ret void ; ; LIMI0-LABEL: @func7( ; LIMI0-NEXT: call void [[UNKNOWN:%.*]](), !callees !1 ; LIMI0-NEXT: ret void ; call void %unknown(), !callees !2 ret void } ; Check there's no crash if something that isn't a function appears in !callees define void @undef_in_callees() { ; UNLIM-LABEL: @undef_in_callees( ; UNLIM-NEXT: cond.end.i: ; UNLIM-NEXT: call void undef(ptr undef, i32 undef, ptr undef), !callees !2 ; UNLIM-NEXT: ret void ; ; LIMI2-LABEL: @undef_in_callees( ; LIMI2-NEXT: cond.end.i: ; LIMI2-NEXT: call void undef(ptr undef, i32 undef, ptr undef), !callees !4 ; LIMI2-NEXT: ret void ; ; LIMI0-LABEL: @undef_in_callees( ; LIMI0-NEXT: cond.end.i: ; LIMI0-NEXT: call void undef(ptr undef, i32 undef, ptr undef), !callees !6 ; LIMI0-NEXT: ret void ; cond.end.i: call void undef(ptr undef, i32 undef, ptr undef), !callees !3 ret void } define void @as_cast(ptr %arg) { ; OWRDL-LABEL: @as_cast( ; OWRDL-NEXT: [[FP:%.*]] = load ptr addrspace(1), ptr [[ARG:%.*]], align 8 ; OWRDL-NEXT: tail call addrspace(1) void [[FP]]() ; OWRDL-NEXT: ret void ; ; CWRLD-LABEL: @as_cast( ; CWRLD-NEXT: [[FP:%.*]] = load ptr addrspace(1), ptr [[ARG:%.*]], align 8 ; CWRLD-NEXT: [[FP_AS0:%.*]] = addrspacecast ptr addrspace(1) [[FP]] to ptr ; CWRLD-NEXT: [[TMP1:%.*]] = icmp eq ptr [[FP_AS0]], @func3 ; CWRLD-NEXT: br i1 [[TMP1]], label [[TMP2:%.*]], label [[TMP3:%.*]] ; CWRLD: 2: ; CWRLD-NEXT: tail call void @func3() ; CWRLD-NEXT: br label [[TMP21:%.*]] ; CWRLD: 3: ; CWRLD-NEXT: [[TMP4:%.*]] = icmp eq ptr [[FP_AS0]], @func4 ; CWRLD-NEXT: br i1 [[TMP4]], label [[TMP5:%.*]], label [[TMP6:%.*]] ; CWRLD: 5: ; CWRLD-NEXT: tail call void @func4() ; CWRLD-NEXT: br label [[TMP21]] ; CWRLD: 6: ; CWRLD-NEXT: [[TMP7:%.*]] = icmp eq ptr [[FP_AS0]], @retI32 ; CWRLD-NEXT: br i1 [[TMP7]], label [[TMP8:%.*]], label [[TMP9:%.*]] ; CWRLD: 8: ; CWRLD-NEXT: call void @retI32() ; CWRLD-NEXT: br label [[TMP21]] ; CWRLD: 9: ; CWRLD-NEXT: [[TMP10:%.*]] = icmp eq ptr [[FP_AS0]], @takeI32 ; CWRLD-NEXT: br i1 [[TMP10]], label [[TMP11:%.*]], label [[TMP12:%.*]] ; CWRLD: 11: ; CWRLD-NEXT: call void @takeI32() ; CWRLD-NEXT: br label [[TMP21]] ; CWRLD: 12: ; CWRLD-NEXT: [[TMP13:%.*]] = icmp eq ptr [[FP_AS0]], @retFloatTakeFloat ; CWRLD-NEXT: br i1 [[TMP13]], label [[TMP14:%.*]], label [[TMP15:%.*]] ; CWRLD: 14: ; CWRLD-NEXT: call void @retFloatTakeFloat() ; CWRLD-NEXT: br label [[TMP21]] ; CWRLD: 15: ; CWRLD-NEXT: [[TMP16:%.*]] = icmp eq ptr [[FP_AS0]], @retFloatTakeFloatFloatNoundef ; CWRLD-NEXT: br i1 [[TMP16]], label [[TMP17:%.*]], label [[TMP18:%.*]] ; CWRLD: 17: ; CWRLD-NEXT: call void @retFloatTakeFloatFloatNoundef() ; CWRLD-NEXT: br label [[TMP21]] ; CWRLD: 18: ; CWRLD-NEXT: br i1 true, label [[TMP19:%.*]], label [[TMP20:%.*]] ; CWRLD: 19: ; CWRLD-NEXT: tail call void @void() ; CWRLD-NEXT: br label [[TMP21]] ; CWRLD: 20: ; CWRLD-NEXT: unreachable ; CWRLD: 21: ; CWRLD-NEXT: ret void ; %fp = load ptr addrspace(1), ptr %arg, align 8 tail call addrspace(1) void %fp() ret void } !0 = !{!1} !1 = !{i64 0, i1 false} !2 = !{ptr @func3, ptr @func4} !3 = distinct !{ptr undef, ptr null} ; UTC_ARGS: --disable ; DOT-DAG: Node[[FUNC1:0x[a-z0-9]+]] [shape=record,label="{func1}"]; ; DOT-DAG: Node[[FUNC2:0x[a-z0-9]+]] [shape=record,label="{func2}"]; ; DOT-DAG: Node[[FUNC3:0x[a-z0-9]+]] [shape=record,label="{func3}"]; ; DOT-DAG: Node[[FUNC4:0x[a-z0-9]+]] [shape=record,label="{func4}"]; ; DOT-DAG: Node[[FUNC5:0x[a-z0-9]+]] [shape=record,label="{func5}"]; ; DOT-DAG: Node[[FUNC6:0x[a-z0-9]+]] [shape=record,label="{func6}"]; ; DOT-DAG: Node[[FUNC7:0x[a-z0-9]+]] [shape=record,label="{func7}"]; ; DOT-DAG: Node[[BROKER:0x[a-z0-9]+]] [shape=record,label="{broker}"]; ; DOT-DAG: Node[[FUNC1]] -> Node[[FUNC3]]; ; DOT-DAG: Node[[FUNC2]] -> Node[[FUNC4]]; ; DOT-DAG: Node[[FUNC5]] -> Node[[FUNC3]]; ; DOT-DAG: Node[[FUNC5]] -> Node[[FUNC4]]; ; DOT-DAG: Node[[FUNC6]] -> Node[[BROKER]]; ; This one gets added because of the callback metadata. ; DOT-DAG: Node[[FUNC6]] -> Node[[FUNC3]]; ; These ones are added because of the callees metadata. ; DOT-DAG: Node[[FUNC7]] -> Node[[FUNC3]]; ; DOT-DAG: Node[[FUNC7]] -> Node[[FUNC4]]; ; UTC_ARGS: --enable ;. ; CHECK: attributes #[[ATTR0:[0-9]+]] = { mustprogress nofree norecurse nosync nounwind willreturn memory(none) } ;. ; UNLIM: [[META0:![0-9]+]] = !{!1} ; UNLIM: [[META1:![0-9]+]] = !{i64 0, i1 false} ; UNLIM: [[META2:![0-9]+]] = distinct !{ptr undef, ptr null} ;. ; LIMI2: [[META0:![0-9]+]] = !{ptr @void, ptr @retFloatTakeFloat} ; LIMI2: [[META1:![0-9]+]] = !{ptr @void} ; LIMI2: [[META2:![0-9]+]] = !{!3} ; LIMI2: [[META3:![0-9]+]] = !{i64 0, i1 false} ; LIMI2: [[META4:![0-9]+]] = distinct !{ptr undef, ptr null} ;. ; LIMI0: [[META0:![0-9]+]] = !{ptr @func4, ptr @internal_good} ; LIMI0: [[META1:![0-9]+]] = !{ptr @func3, ptr @func4} ; LIMI0: [[META2:![0-9]+]] = !{ptr @takeI32, ptr @retI32, ptr @void, ptr @retFloatTakeFloat} ; LIMI0: [[META3:![0-9]+]] = !{ptr @takeI32, ptr @retI32, ptr @void} ; LIMI0: [[META4:![0-9]+]] = !{!5} ; LIMI0: [[META5:![0-9]+]] = !{i64 0, i1 false} ; LIMI0: [[META6:![0-9]+]] = distinct !{ptr undef, ptr null} ;. ;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line: ; DOT: {{.*}}