| ; RUN: split-file %s %t |
| ; RUN: cat %t/main.ll %t/a.ll > %t/a2.ll |
| ; RUN: cat %t/main.ll %t/b.ll > %t/b2.ll |
| ; RUN: cat %t/main.ll %t/c.ll > %t/c2.ll |
| ; RUN: cat %t/main.ll %t/d.ll > %t/d2.ll |
| ; RUN: cat %t/main.ll %t/e.ll > %t/e2.ll |
| ; RUN: cat %t/main.ll %t/f.ll > %t/f2.ll |
| ; RUN: cat %t/main.ll %t/g.ll > %t/g2.ll |
| ; RUN: cat %t/main.ll %t/h.ll > %t/h2.ll |
| ; RUN: cat %t/existedGV.ll %t/main.ll %t/h.ll > %t/h3.ll |
| ; RUN: cat %t/main.ll %t/i.ll > %t/i2.ll |
| ; RUN: llc -mtriple=x86_64-pc-linux-gnu -o - < %t/a2.ll | FileCheck --check-prefix=CHECK-TLS-FS-40 %s |
| ; RUN: llc -mtriple=x86_64-pc-linux-gnu -o - < %t/b2.ll | FileCheck --check-prefix=CHECK-TLS-FS-40 %s |
| ; RUN: llc -mtriple=x86_64-pc-linux-gnu -o - < %t/c2.ll | FileCheck --check-prefix=CHECK-GLOBAL %s |
| ; RUN: llc -mtriple=x86_64-pc-linux-gnu -o - < %t/d2.ll | FileCheck --check-prefix=CHECK-TLS-FS-40 %s |
| ; RUN: llc -mtriple=x86_64-pc-linux-gnu -o - < %t/e2.ll | FileCheck --check-prefix=CHECK-GS %s |
| ; RUN: llc -mtriple=x86_64-pc-linux-gnu -o - < %t/f2.ll | FileCheck --check-prefix=CHECK-OFFSET %s |
| ; RUN: llc -mtriple=x86_64-pc-linux-gnu -o - < %t/g2.ll | FileCheck --check-prefix=CHECK-NEGATIVE-OFFSET %s |
| ; RUN: llc -mtriple=x86_64-pc-linux-gnu -o - < %t/h2.ll | FileCheck --check-prefix=CHECK-SYM %s |
| ; RUN: llc -mtriple=x86_64-pc-linux-gnu -o - < %t/h3.ll | FileCheck --check-prefix=CHECK-SYMGV %s |
| ; RUN: llc -mtriple=x86_64-pc-linux-gnu -o - < %t/i2.ll | FileCheck --check-prefix=CHECK-SYM2 %s |
| |
| ; CHECK-TLS-FS-40: movq %fs:40, %rax |
| ; CHECK-TLS-FS-40: movq %fs:40, %rax |
| ; CHECK-TLS-FS-40-NEXT: cmpq 16(%rsp), %rax |
| ; CHECK-TLS-FS-40-NEXT: jne .LBB0_2 |
| ; CHECK-TLS-FS-40: .LBB0_2: |
| ; CHECK-TLS-FS-40-NEXT: .cfi_def_cfa_offset 32 |
| ; CHECK-TLS-FS-40-NEXT: callq __stack_chk_fail |
| |
| ; CHECK-GS: movq %gs:40, %rax |
| ; CHECK-GS: movq %gs:40, %rax |
| ; CHECK-GS-NEXT: cmpq 16(%rsp), %rax |
| ; CHECK-GS-NEXT: jne .LBB0_2 |
| ; CHECK-GS: .LBB0_2: |
| ; CHECK-GS-NEXT: .cfi_def_cfa_offset 32 |
| ; CHECK-GS-NEXT: callq __stack_chk_fail |
| |
| ; CHECK-OFFSET: movq %fs:20, %rax |
| ; CHECK-OFFSET: movq %fs:20, %rax |
| ; CHECK-OFFSET-NEXT: cmpq 16(%rsp), %rax |
| ; CHECK-OFFSET-NEXT: jne .LBB0_2 |
| ; CHECK-OFFSET: .LBB0_2: |
| ; CHECK-OFFSET-NEXT: .cfi_def_cfa_offset 32 |
| ; CHECK-OFFSET-NEXT: callq __stack_chk_fail |
| |
| ; CHECK-NEGATIVE-OFFSET: movl $4294967276, %eax # imm = 0xFFFFFFEC |
| ; CHECK-NEGATIVE-OFFSET: movq %fs:(%rax), %rcx |
| ; CHECK-NEGATIVE-OFFSET: movq %fs:(%rax), %rax |
| ; CHECK-NEGATIVE-OFFSET-NEXT: cmpq 16(%rsp), %rax |
| ; CHECK-NEGATIVE-OFFSET-NEXT: jne .LBB0_2 |
| ; CHECK-NEGATIVE-OFFSET: .LBB0_2: |
| ; CHECK-NEGATIVE-OFFSET-NEXT: .cfi_def_cfa_offset 32 |
| ; CHECK-NEGATIVE-OFFSET-NEXT: callq __stack_chk_fail |
| |
| ; CHECK-GLOBAL: movq __stack_chk_guard(%rip), %rax |
| ; CHECK-GLOBAL: movq __stack_chk_guard(%rip), %rax |
| ; CHECK-GLOBAL-NEXT: cmpq 16(%rsp), %rax |
| ; CHECK-GLOBAL-NEXT: jne .LBB0_2 |
| ; CHECK-GLOBAL: .LBB0_2: |
| ; CHECK-GLOBAL-NEXT: .cfi_def_cfa_offset 32 |
| ; CHECK-GLOBAL-NEXT: callq __stack_chk_fail |
| |
| ; CHECK-SYM: movq __woof@GOTPCREL(%rip), %rax |
| ; CHECK-SYM-NEXT: movq %fs:(%rax), %rcx |
| ; CHECK-SYM-NEXT: movq %rcx, 16(%rsp) |
| ; CHECK-SYM: movq %fs:(%rax), %rax |
| ; CHECK-SYM-NEXT: cmpq 16(%rsp), %rax |
| ; CHECK-SYM-NEXT: jne .LBB0_2 |
| ; CHECK-SYM: .LBB0_2: |
| ; CHECK-SYM-NEXT: .cfi_def_cfa_offset 32 |
| ; CHECK-SYM-NEXT: callq __stack_chk_fail |
| |
| ; CHECK-SYMGV: movq __woof(%rip), %rax |
| ; CHECK-SYMGV-NEXT: movq %rax, 16(%rsp) |
| ; CHECK-SYMGV: cmpq 16(%rsp), %rax |
| ; CHECK-SYMGV-NEXT: jne .LBB0_2 |
| ; CHECK-SYMGV: .LBB0_2: |
| ; CHECK-SYMGV-NEXT: .cfi_def_cfa_offset 32 |
| ; CHECK-SYMGV-NEXT: callq __stack_chk_fail |
| |
| ; CHECK-SYM2: movq %fs:__woof(%rip), %rax |
| ; CHECK-SYM2-NEXT: movq %rax, 16(%rsp) |
| ; CHECK-SYM2: movq %fs:__woof(%rip), %rax |
| ; CHECK-SYM2-NEXT: cmpq 16(%rsp), %rax |
| ; CHECK-SYM2-NEXT: jne .LBB0_2 |
| ; CHECK-SYM2: .LBB0_2: |
| ; CHECK-SYM2-NEXT: .cfi_def_cfa_offset 32 |
| ; CHECK-SYM2-NEXT: callq __stack_chk_fai |
| |
| ; ModuleID = 't.c' |
| ;--- existedGV.ll |
| |
| @__woof = dso_local local_unnamed_addr global ptr null, align 8 |
| |
| ;--- main.ll |
| |
| @.str = private unnamed_addr constant [14 x i8] c"stackoverflow\00", align 1 |
| @a = dso_local local_unnamed_addr global ptr null, align 8 |
| |
| ; Function Attrs: nounwind sspreq uwtable writeonly |
| define dso_local i32 @main() local_unnamed_addr #0 { |
| entry: |
| %array = alloca [5 x i8], align 1 |
| call void @llvm.lifetime.start.p0(i64 5, ptr nonnull %array) #2 |
| call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 1 dereferenceable(14) %array, ptr nonnull align 1 dereferenceable(14) @.str, i64 14, i1 false) #2 |
| store ptr %array, ptr @a, align 8 |
| call void @llvm.lifetime.end.p0(i64 5, ptr nonnull %array) #2 |
| ret i32 0 |
| } |
| |
| ; Function Attrs: argmemonly nounwind willreturn |
| declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1 |
| |
| ; Function Attrs: argmemonly nounwind willreturn |
| declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1 |
| |
| ; Function Attrs: argmemonly nounwind willreturn |
| declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #1 |
| |
| attributes #0 = { nounwind sspreq uwtable writeonly "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="none" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| attributes #1 = { argmemonly nounwind willreturn } |
| attributes #2 = { nounwind } |
| |
| ;--- a.ll |
| ;--- b.ll |
| !llvm.module.flags = !{!1} |
| !1 = !{i32 2, !"stack-protector-guard", !"tls"} |
| ;--- c.ll |
| !llvm.module.flags = !{!0,!1} |
| !0 = !{i32 7, !"direct-access-external-data", i32 1} |
| !1 = !{i32 2, !"stack-protector-guard", !"global"} |
| ;--- d.ll |
| !llvm.module.flags = !{!1} |
| !1 = !{i32 2, !"stack-protector-guard-reg", !"fs"} |
| ;--- e.ll |
| !llvm.module.flags = !{!1} |
| !1 = !{i32 2, !"stack-protector-guard-reg", !"gs"} |
| ;--- f.ll |
| !llvm.module.flags = !{!1} |
| !1 = !{i32 2, !"stack-protector-guard-offset", i32 20} |
| ;--- g.ll |
| !llvm.module.flags = !{!1} |
| !1 = !{i32 2, !"stack-protector-guard-offset", i32 -20} |
| ;--- h.ll |
| !llvm.module.flags = !{!0,!1} |
| !0 = !{i32 7, !"direct-access-external-data", i32 0} |
| !1 = !{i32 2, !"stack-protector-guard-symbol", !"__woof"} |
| ;--- i.ll |
| !llvm.module.flags = !{!0,!1} |
| !0 = !{i32 7, !"direct-access-external-data", i32 1} |
| !1 = !{i32 2, !"stack-protector-guard-symbol", !"__woof"} |
