From 36c49e3f258dced101949edabd72e9bc3f1dedc4 Mon Sep 17 00:00:00 2001
From: dim <dim@FreeBSD.org>
Date: Fri, 17 Sep 2010 15:54:40 +0000
Subject: Vendor import of clang r114020 (from the release_28 branch):
http://llvm.org/svn/llvm-project/cfe/branches/release_28@114020
Approved by: rpaulo (mentor)
---
test/CodeGen/trapv.c | 47 ++++++++++++++++++++++++++++++++++++++++++++---
1 file changed, 44 insertions(+), 3 deletions(-)
(limited to 'test/CodeGen/trapv.c')
diff --git a/test/CodeGen/trapv.c b/test/CodeGen/trapv.c
index d10d617..7f192c6 100644
--- a/test/CodeGen/trapv.c
+++ b/test/CodeGen/trapv.c
@@ -1,10 +1,51 @@
-// RUN: %clang_cc1 -ftrapv %s -emit-llvm -o %t
-// RUN: grep "__overflow_handler" %t | count 2
+// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -ftrapv %s -emit-llvm -o - | FileCheck %s
+
+// CHECK: [[I32O:%.*]] = type { i32, i1 }
unsigned int ui, uj, uk;
int i, j, k;
-void foo() {
+// CHECK: define void @test0()
+void test0() {
+ // -ftrapv doesn't affect unsigned arithmetic.
+ // CHECK: [[T1:%.*]] = load i32* @uj
+ // CHECK-NEXT: [[T2:%.*]] = load i32* @uk
+ // CHECK-NEXT: [[T3:%.*]] = add i32 [[T1]], [[T2]]
+ // CHECK-NEXT: store i32 [[T3]], i32* @ui
ui = uj + uk;
+
+ // CHECK: [[T1:%.*]] = load i32* @j
+ // CHECK-NEXT: [[T2:%.*]] = load i32* @k
+ // CHECK-NEXT: [[T3:%.*]] = call [[I32O]] @llvm.sadd.with.overflow.i32(i32 [[T1]], i32 [[T2]])
+ // CHECK-NEXT: [[T4:%.*]] = extractvalue [[I32O]] [[T3]], 0
+ // CHECK-NEXT: [[T5:%.*]] = extractvalue [[I32O]] [[T3]], 1
+ // CHECK-NEXT: br i1 [[T5]]
+ // CHECK: call void @llvm.trap()
i = j + k;
}
+
+// CHECK: define void @test1()
+void test1() {
+ extern void opaque(int);
+ opaque(i++);
+
+ // CHECK: [[T1:%.*]] = load i32* @i
+ // CHECK-NEXT: [[T2:%.*]] = call [[I32O]] @llvm.sadd.with.overflow.i32(i32 [[T1]], i32 1)
+ // CHECK-NEXT: [[T3:%.*]] = extractvalue [[I32O]] [[T2]], 0
+ // CHECK-NEXT: [[T4:%.*]] = extractvalue [[I32O]] [[T2]], 1
+ // CHECK-NEXT: br i1 [[T4]]
+ // CHECK: call void @llvm.trap()
+}
+
+// CHECK: define void @test2()
+void test2() {
+ extern void opaque(int);
+ opaque(++i);
+
+ // CHECK: [[T1:%.*]] = load i32* @i
+ // CHECK-NEXT: [[T2:%.*]] = call [[I32O]] @llvm.sadd.with.overflow.i32(i32 [[T1]], i32 1)
+ // CHECK-NEXT: [[T3:%.*]] = extractvalue [[I32O]] [[T2]], 0
+ // CHECK-NEXT: [[T4:%.*]] = extractvalue [[I32O]] [[T2]], 1
+ // CHECK-NEXT: br i1 [[T4]]
+ // CHECK: call void @llvm.trap()
+}
--
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