derek.holloway
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65 lines
2.2 KiB
YAML
65 lines
2.2 KiB
YAML
# RUN: llc -mtriple=x86_64 -run-pass none -o - %s | FileCheck %s
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# This test ensures that the MIR parser parses the external symbol machine
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# operands correctly.
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--- |
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@__stack_chk_guard = external global ptr
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define i32 @test(i32 %n) #0 {
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entry:
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%StackGuardSlot = alloca ptr
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%StackGuard = load ptr, ptr @__stack_chk_guard
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call void @llvm.stackprotector(ptr %StackGuard, ptr %StackGuardSlot)
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%a = alloca [128 x i32], align 16
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%idxprom = sext i32 %n to i64
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%arrayidx = getelementptr inbounds [128 x i32], ptr %a, i64 0, i64 %idxprom
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%0 = load i32, ptr %arrayidx, align 4
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call void @llvm.stackprotectorcheck(ptr @__stack_chk_guard)
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ret i32 %0
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}
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declare void @llvm.stackprotector(ptr, ptr) #1
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declare void @llvm.stackprotectorcheck(ptr) #1
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attributes #0 = { ssp "stack-protector-buffer-size"="8" }
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attributes #1 = { nounwind }
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...
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---
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name: test
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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successors: %bb.1.entry, %bb.2.entry
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liveins: $edi
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$rsp = SUB64ri32 $rsp, 520, implicit-def $eflags
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$rcx = LOAD_STACK_GUARD
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MOV64mr $rsp, 1, _, 512, _, $rcx
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$rax = MOVSX64rr32 $edi
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$eax = MOV32rm $rsp, 4, $rax, 0, _
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CMP64rm $rcx, $rsp, 1, _, 512, _, implicit-def $eflags
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JCC_1 %bb.2.entry, 5, implicit $eflags
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bb.1.entry:
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liveins: $eax
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$rsp = ADD64ri32 $rsp, 520, implicit-def $eflags
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RET64 $eax
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bb.2.entry:
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; CHECK: CALL64pcrel32 &__stack_chk_fail,
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; CHECK-NEXT: CALL64pcrel32 &__stack_chk_fail.09-_,
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; CHECK-NEXT: CALL64pcrel32 &"__stack_chk_fail$",
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; CHECK-NEXT: CALL64pcrel32 &"$Quoted \09 External symbol \11 ",
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; CHECK-NEXT: CALL64pcrel32 &__stack_chk_fail + 2,
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; CHECK-NEXT: CALL64pcrel32 &" check stack - 20" - 20,
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CALL64pcrel32 &__stack_chk_fail, csr_64, implicit $rsp, implicit-def $rsp
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CALL64pcrel32 &__stack_chk_fail.09-_, csr_64, implicit $rsp, implicit-def $rsp
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CALL64pcrel32 &__stack_chk_fail$, csr_64, implicit $rsp, implicit-def $rsp
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CALL64pcrel32 &"$Quoted \09 External symbol \11 ", csr_64, implicit $rsp, implicit-def $rsp
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CALL64pcrel32 &__stack_chk_fail + 2, csr_64, implicit $rsp, implicit-def $rsp
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CALL64pcrel32 &" check stack - 20" - 20, csr_64, implicit $rsp, implicit-def $rsp
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...
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