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fd4a382026
The machine verifier was disabled for x86 by default. There are now only 9 tests failing, compared to what previously was between 20 and 30. This is a good opportunity to file bugs for all the remaining issues, then explicitly disable the failing tests and enabling the machine verifier by default. This allows us to avoid adding new tests that break the verifier. PR27481 llvm-svn: 345513
223 lines
7.1 KiB
LLVM
223 lines
7.1 KiB
LLVM
; RUN: llc -mtriple=x86_64-unknown-unknown < %s | FileCheck %s --check-prefix=ALL --check-prefix=X86_64
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; RUN: llc -mtriple=i386-unknown-unknown < %s | FileCheck %s --check-prefix=ALL --check-prefix=X86
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; FIXME: Fix machine verifier issues and remove -verify-machineinstrs=0. PR39439.
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; RUN: llc -mtriple i386-windows-gnu -exception-model sjlj -verify-machineinstrs=0 < %s | FileCheck %s --check-prefix=SJLJ
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Test1
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;; -----
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;; Checks ENDBR insertion in case of switch case statement.
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;; Also since the function is not internal, make sure that endbr32/64 was
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;; added at the beginning of the function.
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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define i8 @test1(){
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; ALL-LABEL: test1
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; X86_64: endbr64
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; X86: endbr32
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; ALL: jmp{{q|l}} *
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; ALL: .LBB0_1:
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; X86_64-NEXT: endbr64
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; X86-NEXT: endbr32
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; ALL: .LBB0_2:
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; X86_64-NEXT: endbr64
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; X86-NEXT: endbr32
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entry:
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%0 = select i1 undef, i8* blockaddress(@test1, %bb), i8* blockaddress(@test1, %bb6) ; <i8*> [#uses=1]
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indirectbr i8* %0, [label %bb, label %bb6]
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bb: ; preds = %entry
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ret i8 1
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bb6: ; preds = %entry
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ret i8 2
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}
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Test2
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;; -----
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;; Checks NOTRACK insertion in case of switch case statement.
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;; Check that there is no ENDBR insertion in the following case statements.
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;; Also since the function is not internal, ENDBR instruction should be
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;; added to its first basic block.
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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define i32 @test2(i32 %a) {
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; ALL-LABEL: test2
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; X86_64: endbr64
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; X86: endbr32
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; ALL: notrack jmp{{q|l}} *
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; X86_64-NOT: endbr64
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; X86-NOT: endbr32
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entry:
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%retval = alloca i32, align 4
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%a.addr = alloca i32, align 4
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store i32 %a, i32* %a.addr, align 4
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%0 = load i32, i32* %a.addr, align 4
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switch i32 %0, label %sw.default [
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i32 0, label %sw.bb
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i32 1, label %sw.bb1
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i32 2, label %sw.bb2
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i32 3, label %sw.bb3
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i32 4, label %sw.bb4
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]
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sw.bb: ; preds = %entry
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store i32 5, i32* %retval, align 4
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br label %return
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sw.bb1: ; preds = %entry
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store i32 7, i32* %retval, align 4
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br label %return
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sw.bb2: ; preds = %entry
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store i32 2, i32* %retval, align 4
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br label %return
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sw.bb3: ; preds = %entry
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store i32 32, i32* %retval, align 4
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br label %return
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sw.bb4: ; preds = %entry
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store i32 73, i32* %retval, align 4
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br label %return
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sw.default: ; preds = %entry
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store i32 0, i32* %retval, align 4
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br label %return
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return: ; preds = %sw.default, %sw.bb4, %sw.bb3, %sw.bb2, %sw.bb1, %sw.bb
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%1 = load i32, i32* %retval, align 4
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ret i32 %1
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}
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Test3
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;; -----
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;; Checks ENDBR insertion in case of indirect call instruction.
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;; The new instruction should be added to the called function (test6)
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;; although it is internal.
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;; Also since the function is not internal, ENDBR instruction should be
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;; added to its first basic block.
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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define void @test3() {
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; ALL-LABEL: test3
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; X86_64: endbr64
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; X86: endbr32
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; ALL: call{{q|l}} *
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entry:
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%f = alloca i32 (...)*, align 8
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store i32 (...)* bitcast (i32 (i32)* @test6 to i32 (...)*), i32 (...)** %f, align 8
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%0 = load i32 (...)*, i32 (...)** %f, align 8
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%call = call i32 (...) %0()
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ret void
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}
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Test4
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;; -----
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;; Checks ENDBR insertion in case of setjmp-like function calls.
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;; Also since the function is not internal, ENDBR instruction should be
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;; added to its first basic block.
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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@buf = internal global [5 x i8*] zeroinitializer
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declare i8* @llvm.frameaddress(i32)
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declare i8* @llvm.stacksave()
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declare i32 @llvm.eh.sjlj.setjmp(i8*)
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define i32 @test4() {
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; ALL-LABEL: test4
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; X86_64: endbr64
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; X86: endbr32
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; ALL: .LBB3_3:
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; X86_64-NEXT: endbr64
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; X86-NEXT: endbr32
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%fp = tail call i8* @llvm.frameaddress(i32 0)
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store i8* %fp, i8** getelementptr inbounds ([5 x i8*], [5 x i8*]* @buf, i64 0, i64 0), align 16
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%sp = tail call i8* @llvm.stacksave()
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store i8* %sp, i8** getelementptr inbounds ([5 x i8*], [5 x i8*]* @buf, i64 0, i64 2), align 16
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%r = tail call i32 @llvm.eh.sjlj.setjmp(i8* bitcast ([5 x i8*]* @buf to i8*))
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ret i32 %r
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}
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Test5
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;; -----
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;; Checks ENDBR insertion in case of internal function.
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;; Since the function is internal and its address was not taken,
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;; make sure that endbr32/64 was not added at the beginning of the
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;; function.
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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define internal i8 @test5(){
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; ALL-LABEL: test5
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; X86_64-NOT: endbr64
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; X86-NOT: endbr32
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ret i8 1
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}
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Test6
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;; -----
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;; Checks ENDBR insertion in case of function that its was address taken.
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;; Since the function's address was taken by test3() and despite being
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;; internal, check for added endbr32/64 at the beginning of the function.
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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define internal i32 @test6(i32 %a) {
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; ALL-LABEL: test6
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; X86_64: endbr64
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; X86: endbr32
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ret i32 1
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}
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Test7
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;; -----
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;; Checks ENDBR insertion in case of non-intrenal function.
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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define i32 @test7() {
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; ALL-LABEL: test7
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; X86_64: endbr64
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; X86: endbr32
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ret i32 1
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}
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Test8
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;; -----
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;; Checks that NO TRACK prefix is not added for indirect jumps to a jump-
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;; table that was created for SJLJ dispatch.
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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declare void @_Z20function_that_throwsv()
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declare i32 @__gxx_personality_sj0(...)
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declare i8* @__cxa_begin_catch(i8*)
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declare void @__cxa_end_catch()
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define void @test8() personality i8* bitcast (i32 (...)* @__gxx_personality_sj0 to i8*) {
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;SJLJ-LABEL: test8
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;SJLJ-NOT: ds
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entry:
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invoke void @_Z20function_that_throwsv()
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to label %try.cont unwind label %lpad
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lpad:
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%0 = landingpad { i8*, i32 }
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catch i8* null
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%1 = extractvalue { i8*, i32 } %0, 0
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%2 = tail call i8* @__cxa_begin_catch(i8* %1)
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tail call void @__cxa_end_catch()
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br label %try.cont
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try.cont:
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ret void
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}
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!llvm.module.flags = !{!0}
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!0 = !{i32 4, !"cf-protection-branch", i32 1}
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