diff options
Diffstat (limited to 'llvm/test/CodeGen/X86/indirect-branch-tracking.ll')
-rw-r--r-- | llvm/test/CodeGen/X86/indirect-branch-tracking.ll | 63 |
1 files changed, 42 insertions, 21 deletions
diff --git a/llvm/test/CodeGen/X86/indirect-branch-tracking.ll b/llvm/test/CodeGen/X86/indirect-branch-tracking.ll index 46b48a4242a..60c3cc225cf 100644 --- a/llvm/test/CodeGen/X86/indirect-branch-tracking.ll +++ b/llvm/test/CodeGen/X86/indirect-branch-tracking.ll @@ -1,10 +1,11 @@ -; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=+ibt -x86-indirect-branch-tracking < %s | FileCheck %s --check-prefix=ALL --check-prefix=X86_64 -; RUN: llc -mtriple=i386-unknown-unknown -mattr=+ibt -x86-indirect-branch-tracking < %s | FileCheck %s --check-prefix=ALL --check-prefix=X86 +; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=+ibt < %s | FileCheck %s --check-prefix=ALL --check-prefix=X86_64 +; RUN: llc -mtriple=i386-unknown-unknown -mattr=+ibt < %s | FileCheck %s --check-prefix=ALL --check-prefix=X86 +; RUN: llc -mtriple i386-windows-gnu -mattr=+ibt -exception-model sjlj < %s | FileCheck %s --check-prefix=SJLJ ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; Test1 ;; ----- -;; Checks ENDBR insertion in case of indirect branch IR instruction. +;; Checks ENDBR insertion in case of switch case statement. ;; Also since the function is not internal, make sure that endbr32/64 was ;; added at the beginning of the function. ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; @@ -34,7 +35,8 @@ bb6: ; preds = %entry ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;; Test2 ;; ----- -;; Checks ENDBR insertion in case of switch case statement. +;; Checks NOTRACK insertion in case of switch case statement. +;; Check that there is no ENDBR insertion in the following case statements. ;; Also since the function is not internal, ENDBR instruction should be ;; added to its first basic block. ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; @@ -43,25 +45,9 @@ define i32 @test2(i32 %a) { ; ALL-LABEL: test2 ; X86_64: endbr64 ; X86: endbr32 -; ALL: jmp{{q|l}} * -; ALL: .LBB1_2: -; X86_64-NEXT: endbr64 -; X86-NEXT: endbr32 -; ALL: .LBB1_7: +; ALL: notrack jmp{{q|l}} * ; X86_64-NOT: endbr64 ; X86-NOT: endbr32 -; ALL: .LBB1_3: -; X86_64-NEXT: endbr64 -; X86-NEXT: endbr32 -; ALL: .LBB1_4: -; X86_64-NEXT: endbr64 -; X86-NEXT: endbr32 -; ALL: .LBB1_5: -; X86_64-NEXT: endbr64 -; X86-NEXT: endbr32 -; ALL: .LBB1_6: -; X86_64-NEXT: endbr64 -; X86-NEXT: endbr32 entry: %retval = alloca i32, align 4 %a.addr = alloca i32, align 4 @@ -198,3 +184,38 @@ define i32 @test7() { ; X86: endbr32 ret i32 1 } + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;; Test8 +;; ----- +;; Checks that NO TRACK prefix is not added for indirect jumps to a jump- +;; table that was created for SJLJ dispatch. +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + +declare void @_Z20function_that_throwsv() +declare i32 @__gxx_personality_sj0(...) +declare i8* @__cxa_begin_catch(i8*) +declare void @__cxa_end_catch() + +define void @test8() personality i8* bitcast (i32 (...)* @__gxx_personality_sj0 to i8*) { +;SJLJ-LABEL: test8 +;SJLJ-NOT: ds +entry: + invoke void @_Z20function_that_throwsv() + to label %try.cont unwind label %lpad + +lpad: + %0 = landingpad { i8*, i32 } + catch i8* null + %1 = extractvalue { i8*, i32 } %0, 0 + %2 = tail call i8* @__cxa_begin_catch(i8* %1) + tail call void @__cxa_end_catch() + br label %try.cont + +try.cont: + ret void +} + +!llvm.module.flags = !{!0} + +!0 = !{i32 4, !"cf-protection-branch", i32 1}
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