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-rw-r--r--test/CodeGen/X86/stack-protector.ll649
1 files changed, 628 insertions, 21 deletions
diff --git a/test/CodeGen/X86/stack-protector.ll b/test/CodeGen/X86/stack-protector.ll
index c07511443b..afe5ab81bc 100644
--- a/test/CodeGen/X86/stack-protector.ll
+++ b/test/CodeGen/X86/stack-protector.ll
@@ -1,28 +1,635 @@
-; RUN: llc -mtriple=i386-pc-linux-gnu < %s -o - | grep %gs:
-; RUN: llc -mtriple=x86_64-pc-linux-gnu < %s -o - | grep %fs:
-; RUN: llc -code-model=kernel -mtriple=x86_64-pc-linux-gnu < %s -o - | grep %gs:
-; RUN: llc -mtriple=x86_64-apple-darwin < %s -o - | grep "__stack_chk_guard"
-; RUN: llc -mtriple=x86_64-apple-darwin < %s -o - | grep "__stack_chk_fail"
+; RUN: llc -mtriple=i386-pc-linux-gnu < %s -o - | FileCheck --check-prefix=LINUX-I386 %s
+; RUN: llc -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck --check-prefix=LINUX-X64 %s
+; RUN: llc -code-model=kernel -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck --check-prefix=LINUX-KERNEL-X64 %s
+; RUN: llc -mtriple=x86_64-apple-darwin < %s -o - | FileCheck --check-prefix=DARWIN-X64 %s
+; FIXME: Update and expand test when strong heuristic is implemented.
-@"\01LC" = internal constant [11 x i8] c"buf == %s\0A\00" ; <[11 x i8]*> [#uses=1]
+%struct.foo = type { [16 x i8] }
+%struct.foo.0 = type { [4 x i8] }
-define void @test(i8* %a) nounwind ssp {
+@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
+
+; test1a: array of [16 x i8]
+; no ssp attribute
+; Requires no protector.
+define void @test1a(i8* %a) nounwind uwtable {
+entry:
+; LINUX-I386: test1a:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test1a:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test1a:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test1a:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %a.addr = alloca i8*, align 8
+ %buf = alloca [16 x i8], align 16
+ store i8* %a, i8** %a.addr, align 8
+ %arraydecay = getelementptr inbounds [16 x i8]* %buf, i32 0, i32 0
+ %0 = load i8** %a.addr, align 8
+ %call = call i8* @strcpy(i8* %arraydecay, i8* %0)
+ %arraydecay1 = getelementptr inbounds [16 x i8]* %buf, i32 0, i32 0
+ %call2 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i8* %arraydecay1)
+ ret void
+}
+
+; test1b: array of [16 x i8]
+; ssp attribute
+; Requires protector.
+define void @test1b(i8* %a) nounwind uwtable ssp {
+entry:
+; LINUX-I386: test1b:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test1b:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test1b:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test1b:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a.addr = alloca i8*, align 8
+ %buf = alloca [16 x i8], align 16
+ store i8* %a, i8** %a.addr, align 8
+ %arraydecay = getelementptr inbounds [16 x i8]* %buf, i32 0, i32 0
+ %0 = load i8** %a.addr, align 8
+ %call = call i8* @strcpy(i8* %arraydecay, i8* %0)
+ %arraydecay1 = getelementptr inbounds [16 x i8]* %buf, i32 0, i32 0
+ %call2 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i8* %arraydecay1)
+ ret void
+}
+
+; test1c: array of [16 x i8]
+; sspstrong attribute
+; Requires protector.
+define void @test1c(i8* %a) nounwind uwtable sspstrong {
+entry:
+; LINUX-I386: test1c:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test1c:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test1c:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test1c:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a.addr = alloca i8*, align 8
+ %buf = alloca [16 x i8], align 16
+ store i8* %a, i8** %a.addr, align 8
+ %arraydecay = getelementptr inbounds [16 x i8]* %buf, i32 0, i32 0
+ %0 = load i8** %a.addr, align 8
+ %call = call i8* @strcpy(i8* %arraydecay, i8* %0)
+ %arraydecay1 = getelementptr inbounds [16 x i8]* %buf, i32 0, i32 0
+ %call2 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i8* %arraydecay1)
+ ret void
+}
+
+; test1d: array of [16 x i8]
+; sspreq attribute
+; Requires protector.
+define void @test1d(i8* %a) nounwind uwtable sspreq {
+entry:
+; LINUX-I386: test1d:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test1d:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test1d:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test1d:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a.addr = alloca i8*, align 8
+ %buf = alloca [16 x i8], align 16
+ store i8* %a, i8** %a.addr, align 8
+ %arraydecay = getelementptr inbounds [16 x i8]* %buf, i32 0, i32 0
+ %0 = load i8** %a.addr, align 8
+ %call = call i8* @strcpy(i8* %arraydecay, i8* %0)
+ %arraydecay1 = getelementptr inbounds [16 x i8]* %buf, i32 0, i32 0
+ %call2 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i8* %arraydecay1)
+ ret void
+}
+
+; test2a: struct { [16 x i8] }
+; no ssp attribute
+; Requires no protector.
+define void @test2a(i8* %a) nounwind uwtable {
+entry:
+; LINUX-I386: test2a:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test2a:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test2a:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test2a:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %a.addr = alloca i8*, align 8
+ %b = alloca %struct.foo, align 1
+ store i8* %a, i8** %a.addr, align 8
+ %buf = getelementptr inbounds %struct.foo* %b, i32 0, i32 0
+ %arraydecay = getelementptr inbounds [16 x i8]* %buf, i32 0, i32 0
+ %0 = load i8** %a.addr, align 8
+ %call = call i8* @strcpy(i8* %arraydecay, i8* %0)
+ %buf1 = getelementptr inbounds %struct.foo* %b, i32 0, i32 0
+ %arraydecay2 = getelementptr inbounds [16 x i8]* %buf1, i32 0, i32 0
+ %call3 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i8* %arraydecay2)
+ ret void
+}
+
+; test2b: struct { [16 x i8] }
+; ssp attribute
+; Requires protector.
+define void @test2b(i8* %a) nounwind uwtable ssp {
+entry:
+; LINUX-I386: test2b:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test2b:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test2b:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test2b:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a.addr = alloca i8*, align 8
+ %b = alloca %struct.foo, align 1
+ store i8* %a, i8** %a.addr, align 8
+ %buf = getelementptr inbounds %struct.foo* %b, i32 0, i32 0
+ %arraydecay = getelementptr inbounds [16 x i8]* %buf, i32 0, i32 0
+ %0 = load i8** %a.addr, align 8
+ %call = call i8* @strcpy(i8* %arraydecay, i8* %0)
+ %buf1 = getelementptr inbounds %struct.foo* %b, i32 0, i32 0
+ %arraydecay2 = getelementptr inbounds [16 x i8]* %buf1, i32 0, i32 0
+ %call3 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i8* %arraydecay2)
+ ret void
+}
+
+; test2c: struct { [16 x i8] }
+; sspstrong attribute
+; Requires protector.
+define void @test2c(i8* %a) nounwind uwtable sspstrong {
+entry:
+; LINUX-I386: test2c:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test2c:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test2c:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test2c:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a.addr = alloca i8*, align 8
+ %b = alloca %struct.foo, align 1
+ store i8* %a, i8** %a.addr, align 8
+ %buf = getelementptr inbounds %struct.foo* %b, i32 0, i32 0
+ %arraydecay = getelementptr inbounds [16 x i8]* %buf, i32 0, i32 0
+ %0 = load i8** %a.addr, align 8
+ %call = call i8* @strcpy(i8* %arraydecay, i8* %0)
+ %buf1 = getelementptr inbounds %struct.foo* %b, i32 0, i32 0
+ %arraydecay2 = getelementptr inbounds [16 x i8]* %buf1, i32 0, i32 0
+ %call3 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i8* %arraydecay2)
+ ret void
+}
+
+; test2d: struct { [16 x i8] }
+; sspreq attribute
+; Requires protector.
+define void @test2d(i8* %a) nounwind uwtable sspreq {
+entry:
+; LINUX-I386: test2d:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test2d:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test2d:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test2d:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a.addr = alloca i8*, align 8
+ %b = alloca %struct.foo, align 1
+ store i8* %a, i8** %a.addr, align 8
+ %buf = getelementptr inbounds %struct.foo* %b, i32 0, i32 0
+ %arraydecay = getelementptr inbounds [16 x i8]* %buf, i32 0, i32 0
+ %0 = load i8** %a.addr, align 8
+ %call = call i8* @strcpy(i8* %arraydecay, i8* %0)
+ %buf1 = getelementptr inbounds %struct.foo* %b, i32 0, i32 0
+ %arraydecay2 = getelementptr inbounds [16 x i8]* %buf1, i32 0, i32 0
+ %call3 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i8* %arraydecay2)
+ ret void
+}
+
+; test3a: array of [4 x i8]
+; no ssp attribute
+; Requires no protector.
+define void @test3a(i8* %a) nounwind uwtable {
+entry:
+; LINUX-I386: test3a:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test3a:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test3a:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test3a:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %a.addr = alloca i8*, align 8
+ %buf = alloca [4 x i8], align 1
+ store i8* %a, i8** %a.addr, align 8
+ %arraydecay = getelementptr inbounds [4 x i8]* %buf, i32 0, i32 0
+ %0 = load i8** %a.addr, align 8
+ %call = call i8* @strcpy(i8* %arraydecay, i8* %0)
+ %arraydecay1 = getelementptr inbounds [4 x i8]* %buf, i32 0, i32 0
+ %call2 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i8* %arraydecay1)
+ ret void
+}
+
+; test3b: array [4 x i8]
+; ssp attribute
+; Requires no protector.
+define void @test3b(i8* %a) nounwind uwtable ssp {
+entry:
+; LINUX-I386: test3b:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test3b:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test3b:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test3b:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %a.addr = alloca i8*, align 8
+ %buf = alloca [4 x i8], align 1
+ store i8* %a, i8** %a.addr, align 8
+ %arraydecay = getelementptr inbounds [4 x i8]* %buf, i32 0, i32 0
+ %0 = load i8** %a.addr, align 8
+ %call = call i8* @strcpy(i8* %arraydecay, i8* %0)
+ %arraydecay1 = getelementptr inbounds [4 x i8]* %buf, i32 0, i32 0
+ %call2 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i8* %arraydecay1)
+ ret void
+}
+
+; test3c: array of [4 x i8]
+; sspstrong attribute
+; Requires protector.
+define void @test3c(i8* %a) nounwind uwtable sspstrong {
+entry:
+; LINUX-I386: test3c:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test3c:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test3c:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test3c:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a.addr = alloca i8*, align 8
+ %buf = alloca [4 x i8], align 1
+ store i8* %a, i8** %a.addr, align 8
+ %arraydecay = getelementptr inbounds [4 x i8]* %buf, i32 0, i32 0
+ %0 = load i8** %a.addr, align 8
+ %call = call i8* @strcpy(i8* %arraydecay, i8* %0)
+ %arraydecay1 = getelementptr inbounds [4 x i8]* %buf, i32 0, i32 0
+ %call2 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i8* %arraydecay1)
+ ret void
+}
+
+; test3d: array of [4 x i8]
+; sspreq attribute
+; Requires protector.
+define void @test3d(i8* %a) nounwind uwtable sspreq {
+entry:
+; LINUX-I386: test3d:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test3d:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test3d:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test3d:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a.addr = alloca i8*, align 8
+ %buf = alloca [4 x i8], align 1
+ store i8* %a, i8** %a.addr, align 8
+ %arraydecay = getelementptr inbounds [4 x i8]* %buf, i32 0, i32 0
+ %0 = load i8** %a.addr, align 8
+ %call = call i8* @strcpy(i8* %arraydecay, i8* %0)
+ %arraydecay1 = getelementptr inbounds [4 x i8]* %buf, i32 0, i32 0
+ %call2 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i8* %arraydecay1)
+ ret void
+}
+
+; test4a: struct { [4 x i8] }
+; no ssp attribute
+; Requires no protector.
+define void @test4a(i8* %a) nounwind uwtable {
+entry:
+; LINUX-I386: test4a:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test4a:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test4a:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test4a:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %a.addr = alloca i8*, align 8
+ %b = alloca %struct.foo.0, align 1
+ store i8* %a, i8** %a.addr, align 8
+ %buf = getelementptr inbounds %struct.foo.0* %b, i32 0, i32 0
+ %arraydecay = getelementptr inbounds [4 x i8]* %buf, i32 0, i32 0
+ %0 = load i8** %a.addr, align 8
+ %call = call i8* @strcpy(i8* %arraydecay, i8* %0)
+ %buf1 = getelementptr inbounds %struct.foo.0* %b, i32 0, i32 0
+ %arraydecay2 = getelementptr inbounds [4 x i8]* %buf1, i32 0, i32 0
+ %call3 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i8* %arraydecay2)
+ ret void
+}
+
+; test4b: struct { [4 x i8] }
+; ssp attribute
+; Requires no protector.
+define void @test4b(i8* %a) nounwind uwtable ssp {
+entry:
+; LINUX-I386: test4b:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test4b:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test4b:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test4b:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %a.addr = alloca i8*, align 8
+ %b = alloca %struct.foo.0, align 1
+ store i8* %a, i8** %a.addr, align 8
+ %buf = getelementptr inbounds %struct.foo.0* %b, i32 0, i32 0
+ %arraydecay = getelementptr inbounds [4 x i8]* %buf, i32 0, i32 0
+ %0 = load i8** %a.addr, align 8
+ %call = call i8* @strcpy(i8* %arraydecay, i8* %0)
+ %buf1 = getelementptr inbounds %struct.foo.0* %b, i32 0, i32 0
+ %arraydecay2 = getelementptr inbounds [4 x i8]* %buf1, i32 0, i32 0
+ %call3 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i8* %arraydecay2)
+ ret void
+}
+
+; test4c: struct { [4 x i8] }
+; sspstrong attribute
+; Requires protector.
+define void @test4c(i8* %a) nounwind uwtable sspstrong {
+entry:
+; LINUX-I386: test4c:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test4c:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test4c:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test4c:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a.addr = alloca i8*, align 8
+ %b = alloca %struct.foo.0, align 1
+ store i8* %a, i8** %a.addr, align 8
+ %buf = getelementptr inbounds %struct.foo.0* %b, i32 0, i32 0
+ %arraydecay = getelementptr inbounds [4 x i8]* %buf, i32 0, i32 0
+ %0 = load i8** %a.addr, align 8
+ %call = call i8* @strcpy(i8* %arraydecay, i8* %0)
+ %buf1 = getelementptr inbounds %struct.foo.0* %b, i32 0, i32 0
+ %arraydecay2 = getelementptr inbounds [4 x i8]* %buf1, i32 0, i32 0
+ %call3 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i8* %arraydecay2)
+ ret void
+}
+
+; test4d: struct { [4 x i8] }
+; sspreq attribute
+; Requires protector.
+define void @test4d(i8* %a) nounwind uwtable sspreq {
entry:
- %a_addr = alloca i8* ; <i8**> [#uses=2]
- %buf = alloca [8 x i8] ; <[8 x i8]*> [#uses=2]
- %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
- store i8* %a, i8** %a_addr
- %buf1 = bitcast [8 x i8]* %buf to i8* ; <i8*> [#uses=1]
- %0 = load i8** %a_addr, align 4 ; <i8*> [#uses=1]
- %1 = call i8* @strcpy(i8* %buf1, i8* %0) nounwind ; <i8*> [#uses=0]
- %buf2 = bitcast [8 x i8]* %buf to i8* ; <i8*> [#uses=1]
- %2 = call i32 (i8*, ...)* @printf(i8* getelementptr ([11 x i8]* @"\01LC", i32 0, i32 0), i8* %buf2) nounwind ; <i32> [#uses=0]
- br label %return
+; LINUX-I386: test4d:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
-return: ; preds = %entry
- ret void
+; LINUX-X64: test4d:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test4d:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test4d:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a.addr = alloca i8*, align 8
+ %b = alloca %struct.foo.0, align 1
+ store i8* %a, i8** %a.addr, align 8
+ %buf = getelementptr inbounds %struct.foo.0* %b, i32 0, i32 0
+ %arraydecay = getelementptr inbounds [4 x i8]* %buf, i32 0, i32 0
+ %0 = load i8** %a.addr, align 8
+ %call = call i8* @strcpy(i8* %arraydecay, i8* %0)
+ %buf1 = getelementptr inbounds %struct.foo.0* %b, i32 0, i32 0
+ %arraydecay2 = getelementptr inbounds [4 x i8]* %buf1, i32 0, i32 0
+ %call3 = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i8* %arraydecay2)
+ ret void
}
-declare i8* @strcpy(i8*, i8*) nounwind
+; test5a: no arrays / no nested arrays
+; no ssp attribute
+; Requires no protector.
+define void @test5a(i8* %a) nounwind uwtable {
+entry:
+; LINUX-I386: test5a:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test5a:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test5a:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test5a:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %a.addr = alloca i8*, align 8
+ store i8* %a, i8** %a.addr, align 8
+ %0 = load i8** %a.addr, align 8
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i8* %0)
+ ret void
+}
+
+; test5b: no arrays / no nested arrays
+; ssp attribute
+; Requires no protector.
+define void @test5b(i8* %a) nounwind uwtable ssp {
+entry:
+; LINUX-I386: test5b:
+; LINUX-I386-NOT: calll __stack_chk_fail
+; LINUX-I386: .cfi_endproc
+
+; LINUX-X64: test5b:
+; LINUX-X64-NOT: callq __stack_chk_fail
+; LINUX-X64: .cfi_endproc
+
+; LINUX-KERNEL-X64: test5b:
+; LINUX-KERNEL-X64-NOT: callq __stack_chk_fail
+; LINUX-KERNEL-X64: .cfi_endproc
+
+; DARWIN-X64: test5b:
+; DARWIN-X64-NOT: callq ___stack_chk_fail
+; DARWIN-X64: .cfi_endproc
+ %a.addr = alloca i8*, align 8
+ store i8* %a, i8** %a.addr, align 8
+ %0 = load i8** %a.addr, align 8
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i8* %0)
+ ret void
+}
+
+; test5c: no arrays / no nested arrays
+; sspstrong attribute
+; Requires protector.
+; FIXME: Once strong heuristic is implemented, this should _not_ require
+; a protector
+define void @test5c(i8* %a) nounwind uwtable sspstrong {
+entry:
+; LINUX-I386: test5c:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test5c:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test5c:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test5c:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a.addr = alloca i8*, align 8
+ store i8* %a, i8** %a.addr, align 8
+ %0 = load i8** %a.addr, align 8
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i8* %0)
+ ret void
+}
+
+; test5d: no arrays / no nested arrays
+; sspreq attribute
+; Requires protector.
+define void @test5d(i8* %a) nounwind uwtable sspreq {
+entry:
+; LINUX-I386: test5d:
+; LINUX-I386: mov{{l|q}} %gs:
+; LINUX-I386: calll __stack_chk_fail
+
+; LINUX-X64: test5d:
+; LINUX-X64: mov{{l|q}} %fs:
+; LINUX-X64: callq __stack_chk_fail
+
+; LINUX-KERNEL-X64: test5d:
+; LINUX-KERNEL-X64: mov{{l|q}} %gs:
+; LINUX-KERNEL-X64: callq __stack_chk_fail
+
+; DARWIN-X64: test5d:
+; DARWIN-X64: mov{{l|q}} ___stack_chk_guard
+; DARWIN-X64: callq ___stack_chk_fail
+ %a.addr = alloca i8*, align 8
+ store i8* %a, i8** %a.addr, align 8
+ %0 = load i8** %a.addr, align 8
+ %call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i32 0, i32 0), i8* %0)
+ ret void
+}
-declare i32 @printf(i8*, ...) nounwind
+declare i8* @strcpy(i8*, i8*)
+declare i32 @printf(i8*, ...)
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-25 08:23:36 +0000