1; RUN: llc -aarch64-load-store-renaming=true -verify-machineinstrs -mtriple=arm64-linux-gnu -pre-RA-sched=linearize -enable-misched=false -disable-post-ra < %s | FileCheck %s 2 3%va_list = type {ptr, ptr, ptr, i32, i32} 4 5@var = dso_local global %va_list zeroinitializer, align 8 6 7declare void @llvm.va_start(ptr) 8 9define dso_local void @test_simple(i32 %n, ...) { 10; CHECK-LABEL: test_simple: 11; CHECK: sub sp, sp, #[[STACKSIZE:[0-9]+]] 12; CHECK: add [[STACK_TOP:x[0-9]+]], sp, #[[STACKSIZE]] 13 14; CHECK: adrp x[[VA_LIST_HI:[0-9]+]], var 15; CHECK: add x[[VA_LIST:[0-9]+]], {{x[0-9]+}}, :lo12:var 16 17; CHECK-DAG: stp x6, x7, [sp, # 18; ... omit middle ones ... 19; CHECK-DAG: str x1, [sp, #[[GR_BASE:[0-9]+]]] 20 21; CHECK-DAG: stp q0, q1, [sp] 22; ... omit middle ones ... 23; CHECK-DAG: stp q6, q7, [sp, # 24 25; CHECK: str [[STACK_TOP]], [x[[VA_LIST]]] 26 27; CHECK: add [[GR_TOPTMP:x[0-9]+]], sp, #[[GR_BASE]] 28; CHECK: add [[GR_TOP:x[0-9]+]], [[GR_TOPTMP]], #56 29 30 31; CHECK: mov [[VR_TOPTMP:x[0-9]+]], sp 32; CHECK: add [[VR_TOP:x[0-9]+]], [[VR_TOPTMP]], #128 33; CHECK: stp [[GR_TOP]], [[VR_TOP]], [x[[VA_LIST]], #8] 34 35; CHECK: mov [[GRVR:x[0-9]+]], #-56 36; CHECK: movk [[GRVR]], #65408, lsl #32 37; CHECK: str [[GRVR]], [x[[VA_LIST]], #24] 38 39 call void @llvm.va_start(ptr @var) 40 41 ret void 42} 43 44define dso_local void @test_fewargs(i32 %n, i32 %n1, i32 %n2, float %m, ...) { 45; CHECK-LABEL: test_fewargs: 46; CHECK: sub sp, sp, #[[STACKSIZE:[0-9]+]] 47; CHECK: add [[STACK_TOP:x[0-9]+]], sp, #[[STACKSIZE]] 48 49; CHECK: adrp x[[VA_LIST_HI:[0-9]+]], var 50; CHECK: add x[[VA_LIST:[0-9]+]], {{x[0-9]+}}, :lo12:var 51 52; CHECK-DAG: stp x6, x7, [sp, # 53; ... omit middle ones ... 54; CHECK-DAG: str x3, [sp, #[[GR_BASE:[0-9]+]]] 55 56; CHECK-DAG: stp q6, q7, [sp, #80] 57; ... omit middle ones ... 58; CHECK-DAG: str q1, [sp] 59 60; CHECK: str [[STACK_TOP]], [x[[VA_LIST]]] 61 62; CHECK: add [[GR_TOPTMP:x[0-9]+]], sp, #[[GR_BASE]] 63; CHECK: add [[GR_TOP:x[0-9]+]], [[GR_TOPTMP]], #40 64 65; CHECK: mov [[VR_TOPTMP:x[0-9]+]], sp 66; CHECK: add [[VR_TOP:x[0-9]+]], [[VR_TOPTMP]], #112 67; CHECK: stp [[GR_TOP]], [[VR_TOP]], [x[[VA_LIST]], #8] 68 69; CHECK: mov [[GRVR_OFFS:x[0-9]+]], #-40 70; CHECK: movk [[GRVR_OFFS]], #65424, lsl #32 71; CHECK: str [[GRVR_OFFS]], [x[[VA_LIST]], #24] 72 73 call void @llvm.va_start(ptr @var) 74 75 ret void 76} 77 78define dso_local void @test_nospare([8 x i64], [8 x float], ...) { 79; CHECK-LABEL: test_nospare: 80 81 call void @llvm.va_start(ptr @var) 82; CHECK-NOT: sub sp, sp 83; CHECK: mov [[STACK:x[0-9]+]], sp 84; CHECK: add x[[VAR:[0-9]+]], {{x[0-9]+}}, :lo12:var 85; CHECK: str [[STACK]], [x[[VAR]]] 86 87 ret void 88} 89 90; If there are non-variadic arguments on the stack (here two i64s) then the 91; __stack field should point just past them. 92define dso_local void @test_offsetstack([8 x i64], [2 x i64], [3 x float], ...) { 93; CHECK-LABEL: test_offsetstack: 94 95; CHECK-DAG: stp {{q[0-9]+}}, {{q[0-9]+}}, [sp, #48] 96; CHECK-DAG: stp {{q[0-9]+}}, {{q[0-9]+}}, [sp, #16] 97; CHECK-DAG: str {{q[0-9]+}}, [sp] 98; CHECK-DAG: add [[STACK_TOP:x[0-9]+]], sp, #96 99; CHECK-DAG: add x[[VAR:[0-9]+]], {{x[0-9]+}}, :lo12:var 100; CHECK-DAG: str [[STACK_TOP]], [x[[VAR]]] 101 102 call void @llvm.va_start(ptr @var) 103 ret void 104} 105 106declare void @llvm.va_end(ptr) 107 108define dso_local void @test_va_end() nounwind { 109; CHECK-LABEL: test_va_end: 110; CHECK-NEXT: %bb.0 111 112 call void @llvm.va_end(ptr @var) 113 114 ret void 115; CHECK-NEXT: ret 116} 117 118declare void @llvm.va_copy(ptr %dest, ptr %src) 119 120@second_list = dso_local global %va_list zeroinitializer 121 122define dso_local void @test_va_copy() { 123; CHECK-LABEL: test_va_copy: 124 call void @llvm.va_copy(ptr @second_list, ptr @var) 125 126; CHECK: add x[[SRC:[0-9]+]], {{x[0-9]+}}, :lo12:var 127 128; CHECK: ldp [[BLOCKA:q[0-9]+]], [[BLOCKB:q[0-9]+]], [x[[SRC]]] 129; CHECK: add x[[DST:[0-9]+]], {{x[0-9]+}}, :lo12:second_list 130; CHECK: stp [[BLOCKA]], [[BLOCKB]], [x[[DST]]] 131 ret void 132; CHECK: ret 133} 134