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1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py2; RUN: llc -mtriple=aarch64-none-linux -O2 < %s | FileCheck %s --check-prefix=CHECK-O23; RUN: llc -mtriple=aarch64-none-linux -O3 < %s | FileCheck %s --check-prefix=CHECK-O34 5; RUN: llc -mtriple=aarch64-none-linux -tail-dup-size=4 < %s | FileCheck %s --check-prefix=CHECK-O26; RUN: llc -mtriple=aarch64-none-linux -tail-dup-placement-threshold=4 < %s | FileCheck %s --check-prefix=CHECK-O27; RUN: llc -mtriple=aarch64-none-linux -tail-dup-placement-threshold=6 < %s | FileCheck %s --check-prefix=CHECK-O2-68 9%a = type { ptr, i32, %b }10%b = type { %c }11%c = type { i32, i32, [31 x i8] }12 13@global_ptr = dso_local local_unnamed_addr global ptr null, align 814@global_int = dso_local local_unnamed_addr global i32 0, align 415 16define dso_local void @testcase(ptr nocapture %arg){17; CHECK-O2-LABEL: testcase:18; CHECK-O2: // %bb.0: // %entry19; CHECK-O2-NEXT: adrp x8, global_ptr20; CHECK-O2-NEXT: ldr x9, [x8, :lo12:global_ptr]21; CHECK-O2-NEXT: cbz x9, .LBB0_222; CHECK-O2-NEXT: // %bb.1: // %if.then23; CHECK-O2-NEXT: ldr x9, [x9]24; CHECK-O2-NEXT: str x9, [x0]25; CHECK-O2-NEXT: ldr x8, [x8, :lo12:global_ptr]26; CHECK-O2-NEXT: b .LBB0_327; CHECK-O2-NEXT: .LBB0_2:28; CHECK-O2-NEXT: mov x8, xzr29; CHECK-O2-NEXT: .LBB0_3: // %if.end30; CHECK-O2-NEXT: adrp x9, global_int31; CHECK-O2-NEXT: add x2, x8, #1632; CHECK-O2-NEXT: mov w0, #10 // =0xa33; CHECK-O2-NEXT: ldr w1, [x9, :lo12:global_int]34; CHECK-O2-NEXT: b externalfunc35;36; CHECK-O3-LABEL: testcase:37; CHECK-O3: // %bb.0: // %entry38; CHECK-O3-NEXT: adrp x8, .L_MergedGlobals+839; CHECK-O3-NEXT: ldr x9, [x8, :lo12:.L_MergedGlobals+8]40; CHECK-O3-NEXT: cbz x9, .LBB0_241; CHECK-O3-NEXT: // %bb.1: // %if.then42; CHECK-O3-NEXT: ldr x9, [x9]43; CHECK-O3-NEXT: str x9, [x0]44; CHECK-O3-NEXT: ldr x8, [x8, :lo12:.L_MergedGlobals+8]45; CHECK-O3-NEXT: adrp x9, .L_MergedGlobals46; CHECK-O3-NEXT: add x2, x8, #1647; CHECK-O3-NEXT: mov w0, #10 // =0xa48; CHECK-O3-NEXT: ldr w1, [x9, :lo12:.L_MergedGlobals]49; CHECK-O3-NEXT: b externalfunc50; CHECK-O3-NEXT: .LBB0_2:51; CHECK-O3-NEXT: mov x8, xzr52; CHECK-O3-NEXT: adrp x9, .L_MergedGlobals53; CHECK-O3-NEXT: add x2, x8, #1654; CHECK-O3-NEXT: mov w0, #10 // =0xa55; CHECK-O3-NEXT: ldr w1, [x9, :lo12:.L_MergedGlobals]56; CHECK-O3-NEXT: b externalfunc57;58; CHECK-O2-6-LABEL: testcase:59; CHECK-O2-6: // %bb.0: // %entry60; CHECK-O2-6-NEXT: adrp x8, global_ptr61; CHECK-O2-6-NEXT: ldr x9, [x8, :lo12:global_ptr]62; CHECK-O2-6-NEXT: cbz x9, .LBB0_263; CHECK-O2-6-NEXT: // %bb.1: // %if.then64; CHECK-O2-6-NEXT: ldr x9, [x9]65; CHECK-O2-6-NEXT: str x9, [x0]66; CHECK-O2-6-NEXT: ldr x8, [x8, :lo12:global_ptr]67; CHECK-O2-6-NEXT: adrp x9, global_int68; CHECK-O2-6-NEXT: add x2, x8, #1669; CHECK-O2-6-NEXT: mov w0, #10 // =0xa70; CHECK-O2-6-NEXT: ldr w1, [x9, :lo12:global_int]71; CHECK-O2-6-NEXT: b externalfunc72; CHECK-O2-6-NEXT: .LBB0_2:73; CHECK-O2-6-NEXT: mov x8, xzr74; CHECK-O2-6-NEXT: adrp x9, global_int75; CHECK-O2-6-NEXT: add x2, x8, #1676; CHECK-O2-6-NEXT: mov w0, #10 // =0xa77; CHECK-O2-6-NEXT: ldr w1, [x9, :lo12:global_int]78; CHECK-O2-6-NEXT: b externalfunc79entry:80 %0 = load ptr, ptr @global_ptr, align 881 %cmp.not = icmp eq ptr %0, null82 br i1 %cmp.not, label %if.end, label %if.then83 84if.then: ; preds = %entry85 %1 = load ptr, ptr %0, align 886 store ptr %1, ptr %arg, align 887 %.pre = load ptr, ptr @global_ptr, align 888 br label %if.end89 90if.end: ; preds = %if.then, %entry91 %2 = phi ptr [ %.pre, %if.then ], [ null, %entry ]92 %3 = load i32, ptr @global_int, align 493 %4 = getelementptr inbounds %a, ptr %2, i64 0, i32 2, i32 0, i32 194 tail call void @externalfunc(i32 10, i32 %3, ptr nonnull %4)95 ret void96}97 98declare dso_local void @externalfunc(i32, i32, ptr)99