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1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 52; RUN: llc -O3 -mtriple x86_64 -filetype asm -o - %s | FileCheck %s3;4; This tests that the nomerge attribute for ubsantrap works correctly i.e.,5; they are lowered to separate ud1 instructions.6;7; The LLVM IR was generated from clang/test/CodeGen/ubsan-trap-merge.c.8;9; ModuleID = '../clang/test/CodeGen/ubsan-trap-merge.c'10source_filename = "../clang/test/CodeGen/ubsan-trap-merge.c"11target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"12target triple = "x86_64-unknown-linux-gnu"13 14; Function Attrs: nounwind uwtable15define dso_local range(i32 -2147483523, -2147483648) i32 @f(i32 noundef %x) local_unnamed_addr #0 {16; CHECK-LABEL: f:17; CHECK: # %bb.0: # %entry18; CHECK-NEXT: addl $125, %edi19; CHECK-NEXT: jo .LBB0_120; CHECK-NEXT: # %bb.2: # %cont21; CHECK-NEXT: movl %edi, %eax22; CHECK-NEXT: retq23; CHECK-NEXT: .LBB0_1: # %trap24; CHECK-NEXT: ud1l (%eax), %eax25entry:26 %0 = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %x, i32 125), !nosanitize !527 %1 = extractvalue { i32, i1 } %0, 1, !nosanitize !528 br i1 %1, label %trap, label %cont, !nosanitize !529 30trap: ; preds = %entry31 tail call void @llvm.ubsantrap(i8 0) #4, !nosanitize !532 unreachable, !nosanitize !533 34cont: ; preds = %entry35 %2 = extractvalue { i32, i1 } %0, 0, !nosanitize !536 ret i32 %237}38 39; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)40declare { i32, i1 } @llvm.sadd.with.overflow.i32(i32, i32) #141 42; Function Attrs: cold noreturn nounwind43declare void @llvm.ubsantrap(i8 immarg) #244 45; Function Attrs: nounwind uwtable46define dso_local range(i32 -2147483521, -2147483648) i32 @g(i32 noundef %x) local_unnamed_addr #0 {47; CHECK-LABEL: g:48; CHECK: # %bb.0: # %entry49; CHECK-NEXT: addl $127, %edi50; CHECK-NEXT: jo .LBB1_151; CHECK-NEXT: # %bb.2: # %cont52; CHECK-NEXT: movl %edi, %eax53; CHECK-NEXT: retq54; CHECK-NEXT: .LBB1_1: # %trap55; CHECK-NEXT: ud1l (%eax), %eax56entry:57 %0 = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %x, i32 127), !nosanitize !558 %1 = extractvalue { i32, i1 } %0, 1, !nosanitize !559 br i1 %1, label %trap, label %cont, !nosanitize !560 61trap: ; preds = %entry62 tail call void @llvm.ubsantrap(i8 0) #4, !nosanitize !563 unreachable, !nosanitize !564 65cont: ; preds = %entry66 %2 = extractvalue { i32, i1 } %0, 0, !nosanitize !567 ret i32 %268}69 70; Function Attrs: nounwind uwtable71define dso_local range(i32 -2147483521, -2147483648) i32 @h(i32 noundef %x, i32 noundef %y) local_unnamed_addr #0 {72; CHECK-LABEL: h:73; CHECK: # %bb.0: # %entry74; CHECK-NEXT: addl $127, %edi75; CHECK-NEXT: jo .LBB2_376; CHECK-NEXT: # %bb.1: # %cont77; CHECK-NEXT: addl $129, %esi78; CHECK-NEXT: jo .LBB2_479; CHECK-NEXT: # %bb.2: # %cont280; CHECK-NEXT: cmpl %esi, %edi81; CHECK-NEXT: cmovll %edi, %esi82; CHECK-NEXT: movl %esi, %eax83; CHECK-NEXT: retq84; CHECK-NEXT: .LBB2_3: # %trap85; CHECK-NEXT: ud1l (%eax), %eax86; CHECK-NEXT: .LBB2_4: # %trap187; CHECK-NEXT: ud1l (%eax), %eax88entry:89 %0 = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %x, i32 127), !nosanitize !590 %1 = extractvalue { i32, i1 } %0, 1, !nosanitize !591 br i1 %1, label %trap, label %cont, !nosanitize !592 93trap: ; preds = %entry94 tail call void @llvm.ubsantrap(i8 0) #4, !nosanitize !595 unreachable, !nosanitize !596 97cont: ; preds = %entry98 %2 = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %y, i32 129), !nosanitize !599 %3 = extractvalue { i32, i1 } %2, 1, !nosanitize !5100 br i1 %3, label %trap1, label %cont2, !nosanitize !5101 102trap1: ; preds = %cont103 tail call void @llvm.ubsantrap(i8 0) #4, !nosanitize !5104 unreachable, !nosanitize !5105 106cont2: ; preds = %cont107 %4 = extractvalue { i32, i1 } %2, 0, !nosanitize !5108 %5 = extractvalue { i32, i1 } %0, 0, !nosanitize !5109 %cond = tail call i32 @llvm.smin.i32(i32 %5, i32 %4)110 ret i32 %cond111}112 113; Function Attrs: nounwind uwtable114define dso_local noundef i32 @m(i32 noundef %x, i32 noundef %y) local_unnamed_addr #0 {115; CHECK-LABEL: m:116; CHECK: # %bb.0: # %entry117; CHECK-NEXT: addl $125, %edi118; CHECK-NEXT: jo .LBB3_4119; CHECK-NEXT: # %bb.1: # %f.exit120; CHECK-NEXT: addl $127, %esi121; CHECK-NEXT: jo .LBB3_5122; CHECK-NEXT: # %bb.2: # %g.exit123; CHECK-NEXT: addl %esi, %edi124; CHECK-NEXT: jo .LBB3_6125; CHECK-NEXT: # %bb.3: # %cont126; CHECK-NEXT: movl %edi, %eax127; CHECK-NEXT: retq128; CHECK-NEXT: .LBB3_4: # %trap.i129; CHECK-NEXT: ud1l (%eax), %eax130; CHECK-NEXT: .LBB3_5: # %trap.i2131; CHECK-NEXT: ud1l (%eax), %eax132; CHECK-NEXT: .LBB3_6: # %trap133; CHECK-NEXT: ud1l (%eax), %eax134entry:135 %0 = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %x, i32 125), !nosanitize !5136 %1 = extractvalue { i32, i1 } %0, 1, !nosanitize !5137 br i1 %1, label %trap.i, label %f.exit, !nosanitize !5138 139trap.i: ; preds = %entry140 tail call void @llvm.ubsantrap(i8 0) #4, !nosanitize !5141 unreachable, !nosanitize !5142 143f.exit: ; preds = %entry144 %2 = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %y, i32 127), !nosanitize !5145 %3 = extractvalue { i32, i1 } %2, 1, !nosanitize !5146 br i1 %3, label %trap.i2, label %g.exit, !nosanitize !5147 148trap.i2: ; preds = %f.exit149 tail call void @llvm.ubsantrap(i8 0) #4, !nosanitize !5150 unreachable, !nosanitize !5151 152g.exit: ; preds = %f.exit153 %4 = extractvalue { i32, i1 } %0, 0, !nosanitize !5154 %5 = extractvalue { i32, i1 } %2, 0, !nosanitize !5155 %6 = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %4, i32 %5), !nosanitize !5156 %7 = extractvalue { i32, i1 } %6, 1, !nosanitize !5157 br i1 %7, label %trap, label %cont, !nosanitize !5158 159trap: ; preds = %g.exit160 tail call void @llvm.ubsantrap(i8 0) #4, !nosanitize !5161 unreachable, !nosanitize !5162 163cont: ; preds = %g.exit164 %8 = extractvalue { i32, i1 } %6, 0, !nosanitize !5165 ret i32 %8166}167 168; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)169declare i32 @llvm.smin.i32(i32, i32) #3170 171attributes #0 = { nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }172attributes #1 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }173attributes #2 = { cold noreturn nounwind }174attributes #3 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }175attributes #4 = { nomerge noreturn nounwind }176 177!llvm.module.flags = !{!0, !1, !2, !3}178!llvm.ident = !{!4}179 180!0 = !{i32 1, !"wchar_size", i32 4}181!1 = !{i32 8, !"PIC Level", i32 2}182!2 = !{i32 7, !"PIE Level", i32 2}183!3 = !{i32 7, !"uwtable", i32 2}184!4 = !{!"clang version 20.0.0git (https://github.com/llvm/llvm-project.git fe3c23b439b9a2d00442d9bc6a4ca86f73066a3d)"}185!5 = !{}186