derek.holloway
7502bf64a4
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134 lines
3.9 KiB
LLVM
134 lines
3.9 KiB
LLVM
; RUN: rm -rf %t && split-file %s %t
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;--- err1.ll
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; RUN: not --crash llc %t/err1.ll -mtriple=aarch64-elf \
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; RUN: -aarch64-min-jump-table-entries=1 -aarch64-enable-atomic-cfg-tidy=0 \
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; RUN: -code-model=large \
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; RUN: -o - -verify-machineinstrs 2>&1 | FileCheck %s --check-prefix=ERR1
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; RUN: not --crash llc %t/err1.ll -mtriple=aarch64-elf \
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; RUN: -aarch64-min-jump-table-entries=1 -aarch64-enable-atomic-cfg-tidy=0 \
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; RUN: -global-isel -global-isel-abort=1 \
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; RUN: -code-model=large \
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; RUN: -o - -verify-machineinstrs 2>&1 | FileCheck %s --check-prefix=ERR1
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; ERR1: LLVM ERROR: Unsupported code-model for hardened jump-table
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define i32 @test_jumptable(i32 %in) "aarch64-jump-table-hardening" {
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switch i32 %in, label %def [
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i32 0, label %lbl1
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i32 1, label %lbl2
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]
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def:
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ret i32 0
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lbl1:
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ret i32 1
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lbl2:
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ret i32 2
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}
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;--- test.ll
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; RUN: llc %t/test.ll -mtriple=arm64-apple-darwin -aarch64-enable-collect-loh=0 \
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; RUN: -aarch64-min-jump-table-entries=1 -aarch64-enable-atomic-cfg-tidy=0 \
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; RUN: -o - -verify-machineinstrs | FileCheck %s --check-prefix=MACHO
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; RUN: llc %t/test.ll -mtriple=arm64-apple-darwin -aarch64-enable-collect-loh=0 \
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; RUN: -aarch64-min-jump-table-entries=1 -aarch64-enable-atomic-cfg-tidy=0 \
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; RUN: -global-isel -global-isel-abort=1 \
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; RUN: -o - -verify-machineinstrs | FileCheck %s --check-prefix=MACHO
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; RUN: llc %t/test.ll -mtriple=arm64-apple-darwin -aarch64-enable-collect-loh=0 \
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; RUN: -aarch64-min-jump-table-entries=1 -aarch64-enable-atomic-cfg-tidy=0 \
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; RUN: -code-model=large \
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; RUN: -o - -verify-machineinstrs | FileCheck %s --check-prefix=MACHO
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; RUN: llc %t/test.ll -mtriple=arm64-apple-darwin -aarch64-enable-collect-loh=0 \
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; RUN: -aarch64-min-jump-table-entries=1 -aarch64-enable-atomic-cfg-tidy=0 \
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; RUN: -global-isel -global-isel-abort=1 \
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; RUN: -code-model=large \
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; RUN: -o - -verify-machineinstrs | FileCheck %s --check-prefix=MACHO
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; RUN: llc %t/test.ll -mtriple=aarch64-elf \
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; RUN: -aarch64-min-jump-table-entries=1 -aarch64-enable-atomic-cfg-tidy=0 \
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; RUN: -o - -verify-machineinstrs | FileCheck %s --check-prefix=ELF
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; RUN: llc %t/test.ll -mtriple=aarch64-elf \
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; RUN: -aarch64-min-jump-table-entries=1 -aarch64-enable-atomic-cfg-tidy=0 \
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; RUN: -global-isel -global-isel-abort=1 \
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; RUN: -o - -verify-machineinstrs | FileCheck %s --check-prefix=ELF
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; MACHO-LABEL: test_jumptable:
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; MACHO: mov w16, w0
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; MACHO: cmp x16, #5
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; MACHO: csel x16, x16, xzr, ls
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; MACHO-NEXT: adrp x17, LJTI0_0@PAGE
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; MACHO-NEXT: add x17, x17, LJTI0_0@PAGEOFF
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; MACHO-NEXT: ldrsw x16, [x17, x16, lsl #2]
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; MACHO-NEXT: Ltmp0:
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; MACHO-NEXT: adr x17, Ltmp0
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; MACHO-NEXT: add x16, x17, x16
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; MACHO-NEXT: br x16
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; ELF-LABEL: test_jumptable:
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; ELF: mov w16, w0
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; ELF: cmp x16, #5
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; ELF: csel x16, x16, xzr, ls
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; ELF-NEXT: adrp x17, .LJTI0_0
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; ELF-NEXT: add x17, x17, :lo12:.LJTI0_0
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; ELF-NEXT: ldrsw x16, [x17, x16, lsl #2]
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; ELF-NEXT: .Ltmp0:
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; ELF-NEXT: adr x17, .Ltmp0
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; ELF-NEXT: add x16, x17, x16
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; ELF-NEXT: br x16
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define i32 @test_jumptable(i32 %in) "aarch64-jump-table-hardening" {
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switch i32 %in, label %def [
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i32 0, label %lbl1
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i32 1, label %lbl2
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i32 2, label %lbl3
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i32 4, label %lbl4
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i32 5, label %lbl5
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]
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def:
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ret i32 0
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lbl1:
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ret i32 1
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lbl2:
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ret i32 2
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lbl3:
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ret i32 4
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lbl4:
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ret i32 8
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lbl5:
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ret i32 10
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}
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; MACHO-LABEL: LJTI0_0:
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; MACHO-NEXT: .long LBB{{[0-9_]+}}-Ltmp0
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; MACHO-NEXT: .long LBB{{[0-9_]+}}-Ltmp0
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; MACHO-NEXT: .long LBB{{[0-9_]+}}-Ltmp0
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; MACHO-NEXT: .long LBB{{[0-9_]+}}-Ltmp0
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; MACHO-NEXT: .long LBB{{[0-9_]+}}-Ltmp0
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; MACHO-NEXT: .long LBB{{[0-9_]+}}-Ltmp0
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; ELF-LABEL: .LJTI0_0:
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; ELF-NEXT: .word .LBB{{[0-9_]+}}-.Ltmp0
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; ELF-NEXT: .word .LBB{{[0-9_]+}}-.Ltmp0
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; ELF-NEXT: .word .LBB{{[0-9_]+}}-.Ltmp0
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; ELF-NEXT: .word .LBB{{[0-9_]+}}-.Ltmp0
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; ELF-NEXT: .word .LBB{{[0-9_]+}}-.Ltmp0
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; ELF-NEXT: .word .LBB{{[0-9_]+}}-.Ltmp0
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