65 lines
2.2 KiB
YAML
65 lines
2.2 KiB
YAML
# RUN: llc -march=x86-64 -run-pass none -o - %s | FileCheck %s
|
|
# This test ensures that the MIR parser parses the external symbol machine
|
|
# operands correctly.
|
|
|
|
--- |
|
|
@__stack_chk_guard = external global i8*
|
|
|
|
define i32 @test(i32 %n) #0 {
|
|
entry:
|
|
%StackGuardSlot = alloca i8*
|
|
%StackGuard = load i8*, i8** @__stack_chk_guard
|
|
call void @llvm.stackprotector(i8* %StackGuard, i8** %StackGuardSlot)
|
|
%a = alloca [128 x i32], align 16
|
|
%idxprom = sext i32 %n to i64
|
|
%arrayidx = getelementptr inbounds [128 x i32], [128 x i32]* %a, i64 0, i64 %idxprom
|
|
%0 = load i32, i32* %arrayidx, align 4
|
|
call void @llvm.stackprotectorcheck(i8** @__stack_chk_guard)
|
|
ret i32 %0
|
|
}
|
|
|
|
declare void @llvm.stackprotector(i8*, i8**) #1
|
|
|
|
declare void @llvm.stackprotectorcheck(i8**) #1
|
|
|
|
attributes #0 = { ssp "stack-protector-buffer-size"="8" }
|
|
attributes #1 = { nounwind }
|
|
|
|
...
|
|
---
|
|
name: test
|
|
tracksRegLiveness: true
|
|
body: |
|
|
bb.0.entry:
|
|
successors: %bb.1.entry, %bb.2.entry
|
|
liveins: $edi
|
|
|
|
$rsp = SUB64ri32 $rsp, 520, implicit-def $eflags
|
|
$rcx = LOAD_STACK_GUARD
|
|
MOV64mr $rsp, 1, _, 512, _, $rcx
|
|
$rax = MOVSX64rr32 $edi
|
|
$eax = MOV32rm $rsp, 4, $rax, 0, _
|
|
CMP64rm $rcx, $rsp, 1, _, 512, _, implicit-def $eflags
|
|
JCC_1 %bb.2.entry, 5, implicit $eflags
|
|
|
|
bb.1.entry:
|
|
liveins: $eax
|
|
|
|
$rsp = ADD64ri32 $rsp, 520, implicit-def $eflags
|
|
RETQ $eax
|
|
|
|
bb.2.entry:
|
|
; CHECK: CALL64pcrel32 &__stack_chk_fail,
|
|
; CHECK-NEXT: CALL64pcrel32 &__stack_chk_fail.09-_,
|
|
; CHECK-NEXT: CALL64pcrel32 &"__stack_chk_fail$",
|
|
; CHECK-NEXT: CALL64pcrel32 &"$Quoted \09 External symbol \11 ",
|
|
; CHECK-NEXT: CALL64pcrel32 &__stack_chk_fail + 2,
|
|
; CHECK-NEXT: CALL64pcrel32 &" check stack - 20" - 20,
|
|
CALL64pcrel32 &__stack_chk_fail, csr_64, implicit $rsp, implicit-def $rsp
|
|
CALL64pcrel32 &__stack_chk_fail.09-_, csr_64, implicit $rsp, implicit-def $rsp
|
|
CALL64pcrel32 &__stack_chk_fail$, csr_64, implicit $rsp, implicit-def $rsp
|
|
CALL64pcrel32 &"$Quoted \09 External symbol \11 ", csr_64, implicit $rsp, implicit-def $rsp
|
|
CALL64pcrel32 &__stack_chk_fail + 2, csr_64, implicit $rsp, implicit-def $rsp
|
|
CALL64pcrel32 &" check stack - 20" - 20, csr_64, implicit $rsp, implicit-def $rsp
|
|
...
|