; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5 ; RUN: llc -O3 -mtriple arm64-linux -filetype asm -o - %s | FileCheck %s -check-prefix CHECK-ASM ; This test checks that nomerge correctly prevents the traps from being merged ; in the compiled code. ; Prior to ae6dc64ec670891cb15049277e43133d4df7fb4b, this test showed that ; nomerge did not work correctly. @B = dso_local global [10 x i8] zeroinitializer, align 1 @B2 = dso_local global [10 x i8] zeroinitializer, align 1 ; Function Attrs: noinline nounwind uwtable define dso_local void @f8(i32 noundef %i, i32 noundef %k) #0 { ; CHECK-ASM-LABEL: f8: ; CHECK-ASM: // %bb.0: // %entry ; CHECK-ASM-NEXT: sub sp, sp, #16 ; CHECK-ASM-NEXT: .cfi_def_cfa_offset 16 ; CHECK-ASM-NEXT: .cfi_remember_state ; CHECK-ASM-NEXT: // kill: def $w0 killed $w0 def $x0 ; CHECK-ASM-NEXT: sxtw x8, w0 ; CHECK-ASM-NEXT: stp w1, w0, [sp, #8] ; CHECK-ASM-NEXT: cmp x8, #10 ; CHECK-ASM-NEXT: b.hi .LBB0_5 ; CHECK-ASM-NEXT: // %bb.1: // %entry ; CHECK-ASM-NEXT: mov w9, #10 // =0xa ; CHECK-ASM-NEXT: sub x9, x9, x8 ; CHECK-ASM-NEXT: cbz x9, .LBB0_5 ; CHECK-ASM-NEXT: // %bb.2: ; CHECK-ASM-NEXT: ldrsw x9, [sp, #8] ; CHECK-ASM-NEXT: adrp x10, .L_MergedGlobals ; CHECK-ASM-NEXT: add x10, x10, :lo12:.L_MergedGlobals ; CHECK-ASM-NEXT: strb wzr, [x10, x8] ; CHECK-ASM-NEXT: cmp x9, #10 ; CHECK-ASM-NEXT: b.hi .LBB0_6 ; CHECK-ASM-NEXT: // %bb.3: ; CHECK-ASM-NEXT: mov w8, #10 // =0xa ; CHECK-ASM-NEXT: sub x8, x8, x9 ; CHECK-ASM-NEXT: cbz x8, .LBB0_6 ; CHECK-ASM-NEXT: // %bb.4: ; CHECK-ASM-NEXT: add x8, x10, x9 ; CHECK-ASM-NEXT: strb wzr, [x8, #10] ; CHECK-ASM-NEXT: add sp, sp, #16 ; CHECK-ASM-NEXT: .cfi_def_cfa_offset 0 ; CHECK-ASM-NEXT: ret ; CHECK-ASM-NEXT: .LBB0_5: // %trap ; CHECK-ASM-NEXT: .cfi_restore_state ; CHECK-ASM-NEXT: brk #0x1 ; CHECK-ASM-NEXT: .LBB0_6: // %trap3 ; CHECK-ASM-NEXT: brk #0x1 entry: %i.addr = alloca i32, align 4 %k.addr = alloca i32, align 4 store i32 %i, ptr %i.addr, align 4 store i32 %k, ptr %k.addr, align 4 %0 = load i32, ptr %i.addr, align 4 %idxprom = sext i32 %0 to i64 %1 = add i64 0, %idxprom %arrayidx = getelementptr inbounds [10 x i8], ptr @B, i64 0, i64 %idxprom %2 = sub i64 10, %1 %3 = icmp ult i64 10, %1 %4 = icmp ult i64 %2, 1 %5 = or i1 %3, %4 br i1 %5, label %trap, label %6 6: ; preds = %entry store i8 0, ptr %arrayidx, align 1 %7 = load i32, ptr %k.addr, align 4 %idxprom1 = sext i32 %7 to i64 %8 = add i64 0, %idxprom1 %arrayidx2 = getelementptr inbounds [10 x i8], ptr @B2, i64 0, i64 %idxprom1 %9 = sub i64 10, %8 %10 = icmp ult i64 10, %8 %11 = icmp ult i64 %9, 1 %12 = or i1 %10, %11 br i1 %12, label %trap3, label %13 13: ; preds = %6 store i8 0, ptr %arrayidx2, align 1 ret void trap: ; preds = %entry call void @llvm.trap() #2 unreachable trap3: ; preds = %6 call void @llvm.trap() #2 unreachable } ; Function Attrs: cold noreturn nounwind memory(inaccessiblemem: write) declare void @llvm.trap() #1 attributes #0 = { noinline nounwind uwtable } attributes #1 = { cold noreturn nounwind memory(inaccessiblemem: write) } attributes #2 = { noreturn nounwind nomerge }