derek.holloway
7502bf64a4
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115 lines
4.2 KiB
LLVM
115 lines
4.2 KiB
LLVM
; RUN: llc -mtriple=aarch64-unknown-linux-gnu -mattr=+pauth -relocation-model=pic \
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; RUN: -verify-machineinstrs < %s | FileCheck %s
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; RUN: llc -mtriple=aarch64-unknown-linux-gnu -mattr=+pauth -relocation-model=pic \
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; RUN: -filetype=obj < %s | llvm-readelf -r -s - | FileCheck --check-prefix=CHECK-OBJ %s
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; RUN: not llc -mtriple=aarch64-unknown-linux-gnu -mattr=+pauth -relocation-model=pic \
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; RUN: -global-isel=1 < %s 2>&1 | FileCheck --check-prefix=CHECK-ERR %s
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@general_dynamic_var = external thread_local global i32
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define i32 @test_generaldynamic() {
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; CHECK-LABEL: test_generaldynamic:
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%val = load i32, ptr @general_dynamic_var
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ret i32 %val
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; CHECK: adrp x[[TLSDESC_HI:[0-9]+]], :tlsdesc_auth:general_dynamic_var
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; CHECK-NEXT: ldr x16, [x[[TLSDESC_HI]], :tlsdesc_auth_lo12:general_dynamic_var]
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; CHECK-NEXT: add x0, x[[TLSDESC_HI]], :tlsdesc_auth_lo12:general_dynamic_var
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; CHECK-NEXT: blraa x16, x0
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; CHECK-NEXT: mrs x[[TPIDR:[0-9]+]], TPIDR_EL0
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; CHECK-NEXT: ldr w0, [x[[TPIDR]], x0]
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; CHECK-OBJ: R_AARCH64_AUTH_TLSDESC_ADR_PAGE21
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; CHECK-OBJ: R_AARCH64_AUTH_TLSDESC_LD64_LO12
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; CHECK-OBJ: R_AARCH64_AUTH_TLSDESC_ADD_LO12
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; CHECK-OBJ-NOT: R_AARCH64_TLSDESC_CALL
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; CHECK-ERR: LLVM ERROR: cannot select: %1:gpr64sp(p0) = G_GLOBAL_VALUE @general_dynamic_var (in function: test_generaldynamic)
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}
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define ptr @test_generaldynamic_addr() {
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; CHECK-LABEL: test_generaldynamic_addr:
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ret ptr @general_dynamic_var
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; CHECK: adrp x[[TLSDESC_HI:[0-9]+]], :tlsdesc_auth:general_dynamic_var
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; CHECK-NEXT: ldr x16, [x[[TLSDESC_HI]], :tlsdesc_auth_lo12:general_dynamic_var]
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; CHECK-NEXT: add x0, x[[TLSDESC_HI]], :tlsdesc_auth_lo12:general_dynamic_var
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; CHECK-NEXT: blraa x16, x0
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; CHECK-NEXT: mrs [[TP:x[0-9]+]], TPIDR_EL0
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; CHECK-NEXT: add x0, [[TP]], x0
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; CHECK-OBJ: R_AARCH64_AUTH_TLSDESC_ADR_PAGE21
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; CHECK-OBJ: R_AARCH64_AUTH_TLSDESC_LD64_LO12
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; CHECK-OBJ: R_AARCH64_AUTH_TLSDESC_ADD_LO12
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; CHECK-OBJ-NOT: R_AARCH64_TLSDESC_CALL
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}
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;; Note: with signed TLSDESC, general dynamic model is always used,
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;; even when local dynamic is requested.
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@local_dynamic_var = external thread_local(localdynamic) global i32
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define i32 @test_localdynamic() {
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; CHECK-LABEL: test_localdynamic:
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%val = load i32, ptr @local_dynamic_var
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ret i32 %val
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; CHECK: adrp x[[TLSDESC_HI:[0-9]+]], :tlsdesc_auth:local_dynamic_var
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; CHECK-NEXT: ldr x16, [x[[TLSDESC_HI]], :tlsdesc_auth_lo12:local_dynamic_var]
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; CHECK-NEXT: add x0, x[[TLSDESC_HI]], :tlsdesc_auth_lo12:local_dynamic_var
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; CHECK-NEXT: blraa x16, x0
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; CHECK-NEXT: mrs x[[TPIDR:[0-9]+]], TPIDR_EL0
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; CHECK-NEXT: ldr w0, [x[[TPIDR]], x0]
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; CHECK-OBJ: R_AARCH64_AUTH_TLSDESC_ADR_PAGE21
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; CHECK-OBJ: R_AARCH64_AUTH_TLSDESC_LD64_LO12
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; CHECK-OBJ: R_AARCH64_AUTH_TLSDESC_ADD_LO12
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; CHECK-OBJ-NOT: R_AARCH64_TLSDESC_CALL
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}
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define ptr @test_localdynamic_addr() {
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; CHECK-LABEL: test_localdynamic_addr:
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ret ptr @local_dynamic_var
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; CHECK: adrp x[[TLSDESC_HI:[0-9]+]], :tlsdesc_auth:local_dynamic_var
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; CHECK-NEXT: ldr x16, [x[[TLSDESC_HI]], :tlsdesc_auth_lo12:local_dynamic_var]
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; CHECK-NEXT: add x0, x[[TLSDESC_HI]], :tlsdesc_auth_lo12:local_dynamic_var
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; CHECK-NEXT: blraa x16, x0
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; CHECK-NEXT: mrs x[[TPIDR:[0-9]+]], TPIDR_EL0
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; CHECK-NEXT: add x0, x[[TPIDR]], x0
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; CHECK-OBJ: R_AARCH64_AUTH_TLSDESC_ADR_PAGE21
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; CHECK-OBJ: R_AARCH64_AUTH_TLSDESC_LD64_LO12
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; CHECK-OBJ: R_AARCH64_AUTH_TLSDESC_ADD_LO12
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; CHECK-OBJ-NOT: R_AARCH64_TLSDESC_CALL
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}
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@extern_weak_var = extern_weak thread_local global i32
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define i32 @test_extern_weak() {
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; CHECK-LABEL: test_extern_weak:
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%val = load i32, ptr @extern_weak_var
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ret i32 %val
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; CHECK: adrp x[[TLSDESC_HI:[0-9]+]], :tlsdesc_auth:extern_weak_var
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; CHECK-NEXT: ldr x16, [x[[TLSDESC_HI]], :tlsdesc_auth_lo12:extern_weak_var]
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; CHECK-NEXT: add x0, x[[TLSDESC_HI]], :tlsdesc_auth_lo12:extern_weak_var
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; CHECK-NEXT: blraa x16, x0
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; CHECK-NEXT: mrs x[[TPIDR:[0-9]+]], TPIDR_EL0
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; CHECK-NEXT: ldr w0, [x[[TPIDR]], x0]
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; CHECK-OBJ: R_AARCH64_AUTH_TLSDESC_ADR_PAGE21
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; CHECK-OBJ: R_AARCH64_AUTH_TLSDESC_LD64_LO12
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; CHECK-OBJ: R_AARCH64_AUTH_TLSDESC_ADD_LO12
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; CHECK-OBJ-NOT: R_AARCH64_TLSDESC_CALL
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; CHECK-OBJ: 0000000000000000 0 TLS WEAK DEFAULT UND extern_weak_var
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}
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!llvm.module.flags = !{!0}
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!0 = !{i32 8, !"ptrauth-elf-got", i32 1}
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