[PS4] Emit a trap after a stack-protector fail call.

llvm-svn: 355542
diff --git a/llvm/test/CodeGen/X86/ps4-ssp-nop.ll b/llvm/test/CodeGen/X86/ps4-ssp-nop.ll
new file mode 100644
index 0000000..9fefeca
--- /dev/null
+++ b/llvm/test/CodeGen/X86/ps4-ssp-nop.ll
@@ -0,0 +1,39 @@
+; Verify that a ud2 is generated after the call to __stack_chk_fail.
+
+; RUN: llc < %s -mtriple=x86_64-scei-ps4 -enable-selectiondag-sp=false -O0 -o - | FileCheck %s
+; RUN: llc < %s -mtriple=x86_64-scei-ps4 -enable-selectiondag-sp=false -O2 -o - | FileCheck %s
+; RUN: llc < %s -mtriple=x86_64-scei-ps4 -enable-selectiondag-sp=true  -O0 -o - | FileCheck %s
+; RUN: llc < %s -mtriple=x86_64-scei-ps4 -enable-selectiondag-sp=true  -O2 -o - | FileCheck %s
+
+
+; CHECK: check_input:
+; CHECK: callq __stack_chk_fail
+; CHECK-NEXT: ud2
+; CHECK: .size	check_input
+; CHECK-NEXT: .cfi_endproc
+
+@.str = private unnamed_addr constant [37 x i8] c"????????????????????????????????????\00", align 1
+
+define signext i8 @check_input(i8* %input) nounwind uwtable ssp {
+entry:
+  %input.addr = alloca i8*, align 8
+  %buf = alloca [16 x i8], align 16
+  store i8* %input, i8** %input.addr, align 8
+  %arraydecay = getelementptr inbounds [16 x i8], [16 x i8]* %buf, i32 0, i32 0
+  %0 = load i8*, i8** %input.addr, align 8
+  %call = call i8* @strcpy(i8* %arraydecay, i8* %0) nounwind
+  %arrayidx = getelementptr inbounds [16 x i8], [16 x i8]* %buf, i32 0, i64 0
+  %1 = load i8, i8* %arrayidx, align 1
+  ret i8 %1
+}
+
+declare i8* @strcpy(i8*, i8*) nounwind
+
+define i32 @main() nounwind uwtable ssp {
+entry:
+  %retval = alloca i32, align 4
+  store i32 0, i32* %retval
+  %call = call signext i8 @check_input(i8* getelementptr inbounds ([37 x i8], [37 x i8]* @.str, i32 0, i32 0))
+  %conv = sext i8 %call to i32
+  ret i32 %conv
+}