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llvm/test/CodeGen/Thumb2/pacbti-m-varargs-2.ll
- This file was added.
| ; RUN: llc --force-dwarf-frame-section %s -o - | FileCheck %s | |||||
| ; RUN: llc --filetype=obj %s -o - | llvm-readelf --unwind - | FileCheck %s --check-prefix=UNWIND | |||||
| target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64" | |||||
| target triple = "thumbv8.1m.main-arm-none-eabi" | |||||
| ; C++ | |||||
| ; int g(int); | |||||
| ; | |||||
| ; int f(int n, ...) { | |||||
| ; __builtin_va_list ap; | |||||
| ; __builtin_va_start(ap, n); | |||||
| ; int s = 0; | |||||
| ; for (int i = 0; i < n; ++i) | |||||
| ; s += g(__builtin_va_arg(ap, int)); | |||||
| ; __builtin_va_end(ap); | |||||
| ; return s; | |||||
| ; } | |||||
| %"struct.std::__va_list" = type { i8* } | |||||
| define hidden i32 @_Z1fiz(i32 %n, ...) local_unnamed_addr #0 { | |||||
| entry: | |||||
| %ap = alloca %"struct.std::__va_list", align 4 | |||||
| %0 = bitcast %"struct.std::__va_list"* %ap to i8* | |||||
| call void @llvm.va_start(i8* nonnull %0) | |||||
| %cmp7 = icmp sgt i32 %n, 0 | |||||
| br i1 %cmp7, label %for.body.lr.ph, label %for.cond.cleanup | |||||
| for.body.lr.ph: ; preds = %entry | |||||
| %1 = getelementptr inbounds %"struct.std::__va_list", %"struct.std::__va_list"* %ap, i32 0, i32 0 | |||||
| br label %for.body | |||||
| for.cond.cleanup: ; preds = %for.body, %entry | |||||
| %s.0.lcssa = phi i32 [ 0, %entry ], [ %add, %for.body ] | |||||
| call void @llvm.va_end(i8* nonnull %0) | |||||
| ret i32 %s.0.lcssa | |||||
| for.body: ; preds = %for.body.lr.ph, %for.body | |||||
| %i.09 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.body ] | |||||
| %s.08 = phi i32 [ 0, %for.body.lr.ph ], [ %add, %for.body ] | |||||
| %argp.cur = load i8*, i8** %1, align 4 | |||||
| %argp.next = getelementptr inbounds i8, i8* %argp.cur, i32 4 | |||||
| store i8* %argp.next, i8** %1, align 4 | |||||
| %2 = bitcast i8* %argp.cur to i32* | |||||
| %3 = load i32, i32* %2, align 4 | |||||
| %call = call i32 @_Z1gi(i32 %3) | |||||
| %add = add nsw i32 %call, %s.08 | |||||
| %inc = add nuw nsw i32 %i.09, 1 | |||||
| %exitcond.not = icmp eq i32 %inc, %n | |||||
| br i1 %exitcond.not, label %for.cond.cleanup, label %for.body | |||||
| } | |||||
| ; CHECK-LABEL: _Z1fiz: | |||||
| ; CHECK: pac r12, lr, sp | |||||
| ; CHECK-NEXT: .pad #12 | |||||
| ; CHECK-NEXT: sub sp, #12 | |||||
| ; CHECK-NEXT: .cfi_def_cfa_offset 12 | |||||
| ; CHECK-NEXT: .save {r4, r5, r7, lr} | |||||
| ; CHECK-NEXT: push {r4, r5, r7, lr} | |||||
| ; CHECK-NEXT: .cfi_def_cfa_offset 28 | |||||
| ; CHECK-NEXT: .cfi_offset lr, -16 | |||||
| ; CHECK-NEXT: .cfi_offset r7, -20 | |||||
| ; CHECK-NEXT: .cfi_offset r5, -24 | |||||
| ; CHECK-NEXT: .cfi_offset r4, -28 | |||||
| ; CHECK-NEXT: .save {ra_auth_code} | |||||
| ; CHECK-NEXT: str r12, [sp, #-4]! | |||||
| ; CHECK-NEXT: .cfi_def_cfa_offset 32 | |||||
| ; CHECK-NEXT: .cfi_offset ra_auth_code, -32 | |||||
| ; CHECK-NEXT: .pad #8 | |||||
| ; CHECK-NEXT: sub sp, #8 | |||||
| ; CHECK-NEXT: .cfi_def_cfa_offset 40 | |||||
| ; ... | |||||
| ; CHECK: add r[[N:[0-9]*]], sp, #28 | |||||
| ; CHECK: stm r[[N]]!, {r1, r2, r3} | |||||
| ; ... | |||||
| ; CHECK: add sp, #8 | |||||
| ; CHECK-NEXT: ldr r12, [sp], #4 | |||||
| ; CHECK-NEXT: pop.w {r4, r5, r7, lr} | |||||
| ; CHECK-NEXT: add sp, #12 | |||||
| ; CHECK-NEXT: aut r12, lr, sp | |||||
| ; CHECK-NEXT: bx lr | |||||
| declare void @llvm.va_start(i8*) #1 | |||||
| declare void @llvm.va_end(i8*) #1 | |||||
| declare dso_local i32 @_Z1gi(i32) local_unnamed_addr | |||||
| attributes #0 = { optsize } | |||||
| attributes #1 = { nounwind } | |||||
| !llvm.module.flags = !{!0, !1, !2} | |||||
| !0 = !{i32 1, !"branch-target-enforcement", i32 0} | |||||
| !1 = !{i32 1, !"sign-return-address", i32 1} | |||||
| !2 = !{i32 1, !"sign-return-address-all", i32 0} | |||||
| ; UNWIND-LABEL: FunctionAddress | |||||
| ; UNWIND: 0x01 ; vsp = vsp + 8 | |||||
| ; UNWIND-NEXT: 0xB4 ; pop ra_auth_code | |||||
| ; UNWIND-NEXT: 0x84 0x0B ; pop {r4, r5, r7, lr} | |||||
| ; UNWIND-NEXT: 0x02 ; vsp = vsp + 12 | |||||