forked from OSchip/llvm-project
72 lines
2.4 KiB
LLVM
72 lines
2.4 KiB
LLVM
; RUN: llc --force-dwarf-frame-section %s -o - | FileCheck %s
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; RUN: llc --filetype=obj %s -o - | llvm-readelf --unwind - | FileCheck %s --check-prefix=UNWIND
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target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
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target triple = "thumbv8.1m.main-arm-none-eabi"
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; int g(int, int *);
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;
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; int f() {
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; __attribute__((aligned(32))) int a[4];
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; g(4, a);
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; int s = 0;
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; for (int i = 0; i < 4; ++i)
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; s += a[i];
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; return s;
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; }
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define hidden i32 @_Z1fv() local_unnamed_addr {
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entry:
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%a = alloca [4 x i32], align 32
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%0 = bitcast [4 x i32]* %a to i8*
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%arraydecay = getelementptr inbounds [4 x i32], [4 x i32]* %a, i32 0, i32 0
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%call = call i32 @_Z1giPi(i32 4, i32* nonnull %arraydecay)
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%1 = load i32, i32* %arraydecay, align 32
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%arrayidx.1 = getelementptr inbounds [4 x i32], [4 x i32]* %a, i32 0, i32 1
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%2 = load i32, i32* %arrayidx.1, align 4
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%add.1 = add nsw i32 %2, %1
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%arrayidx.2 = getelementptr inbounds [4 x i32], [4 x i32]* %a, i32 0, i32 2
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%3 = load i32, i32* %arrayidx.2, align 8
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%add.2 = add nsw i32 %3, %add.1
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%arrayidx.3 = getelementptr inbounds [4 x i32], [4 x i32]* %a, i32 0, i32 3
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%4 = load i32, i32* %arrayidx.3, align 4
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%add.3 = add nsw i32 %4, %add.2
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ret i32 %add.3
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}
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; CHECK-LABEL: _Z1fv:
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; CHECK: pac r12, lr, sp
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; CHECK: .save {r4, r6, r7, lr}
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; CHECK-NEXT: push {r4, r6, r7, lr}
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; CHECK-NEXT: .cfi_def_cfa_offset 16
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; CHECK-NEXT: .cfi_offset lr, -4
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; CHECK-NEXT: .cfi_offset r7, -8
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; CHECK-NEXT: .cfi_offset r6, -12
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; CHECK-NEXT: .cfi_offset r4, -16
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; CHECK-NEXT: .setfp r7, sp, #8
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; CHECK-NEXT: add r7, sp, #8
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; CHECK-NEXT: .cfi_def_cfa r7, 8
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; CHECK-NEXT: .save {ra_auth_code}
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; CHECK-NEXT: str r12, [sp, #-4]!
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; CHECK-NEXT: .cfi_offset ra_auth_code, -20
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; CHECK-NEXT: .pad #44
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; CHECK-NEXT: sub sp, #44
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; CHECK: ldr r12, [sp], #4
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; CHECK-NEXT: pop.w {r4, r6, r7, lr}
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; CHECK-NEXT: aut r12, lr, sp
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; CHECK-NEXT: bx lr
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declare dso_local i32 @_Z1giPi(i32, i32*) local_unnamed_addr
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!llvm.module.flags = !{!0, !1, !2}
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!0 = !{i32 1, !"branch-target-enforcement", i32 0}
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!1 = !{i32 1, !"sign-return-address", i32 1}
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!2 = !{i32 1, !"sign-return-address-all", i32 0}
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; UNWIND-LABEL: FunctionAddress: 0x0
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; UNWIND: 0x97 ; vsp = r7
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; UNWIND: 0x42 ; vsp = vsp - 12
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; UNWIND: 0xB4 ; pop ra_auth_code
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; UNWIND: 0x84 0x0D ; pop {r4, r6, r7, lr}
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