From e3e5f77d77e7ccc5c966e242f0cd0ccf6d3dae7f Mon Sep 17 00:00:00 2001
From: Matt Arsenault <Matthew.Arsenault@amd.com>
Date: Mon, 26 Aug 2013 23:29:33 +0000
Subject: Fix lint assert on integer vector division

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189290 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/Analysis/Lint/check-zero-divide.ll | 78 +++++++++++++++++++++++++++++++++
 test/Analysis/Lint/lit.local.cfg        |  1 +
 2 files changed, 79 insertions(+)
 create mode 100644 test/Analysis/Lint/check-zero-divide.ll
 create mode 100644 test/Analysis/Lint/lit.local.cfg

(limited to 'test/Analysis')

diff --git a/test/Analysis/Lint/check-zero-divide.ll b/test/Analysis/Lint/check-zero-divide.ll
new file mode 100644
index 0000000..f4e79ed
--- /dev/null
+++ b/test/Analysis/Lint/check-zero-divide.ll
@@ -0,0 +1,78 @@
+; RUN: opt -lint -disable-output %s 2>&1 | FileCheck %s
+
+define <2 x i32> @use_vector_sdiv(<2 x i32> %a) nounwind {
+  %b = sdiv <2 x i32> %a, <i32 5, i32 8>
+  ret <2 x i32> %b
+}
+
+define <2 x i32> @use_vector_srem(<2 x i32> %a) nounwind {
+  %b = srem <2 x i32> %a, <i32 5, i32 8>
+  ret <2 x i32> %b
+}
+
+define <2 x i32> @use_vector_udiv(<2 x i32> %a) nounwind {
+  %b = udiv <2 x i32> %a, <i32 5, i32 8>
+  ret <2 x i32> %b
+}
+
+define <2 x i32> @use_vector_urem(<2 x i32> %a) nounwind {
+  %b = urem <2 x i32> %a, <i32 5, i32 8>
+  ret <2 x i32> %b
+}
+
+define i32 @use_sdiv_by_zero(i32 %a) nounwind {
+; CHECK: Undefined behavior: Division by zero
+; CHECK-NEXT: %b = sdiv i32 %a, 0
+  %b = sdiv i32 %a, 0
+  ret i32 %b
+}
+
+define i32 @use_sdiv_by_zeroinitializer(i32 %a) nounwind {
+; CHECK: Undefined behavior: Division by zero
+; CHECK-NEXT: %b = sdiv i32 %a, 0
+  %b = sdiv i32 %a, zeroinitializer
+   ret i32 %b
+}
+
+define <2 x i32> @use_vector_sdiv_by_zero_x(<2 x i32> %a) nounwind {
+; CHECK: Undefined behavior: Division by zero
+; CHECK-NEXT: %b = sdiv <2 x i32> %a, <i32 0, i32 5>
+  %b = sdiv <2 x i32> %a, <i32 0, i32 5>
+  ret <2 x i32> %b
+}
+
+define <2 x i32> @use_vector_sdiv_by_zero_y(<2 x i32> %a) nounwind {
+; CHECK: Undefined behavior: Division by zero
+; CHECK-NEXT:  %b = sdiv <2 x i32> %a, <i32 4, i32 0>
+  %b = sdiv <2 x i32> %a, <i32 4, i32 0>
+  ret <2 x i32> %b
+}
+
+define <2 x i32> @use_vector_sdiv_by_zero_xy(<2 x i32> %a) nounwind {
+; CHECK: Undefined behavior: Division by zero
+; CHECK-NEXT: %b = sdiv <2 x i32> %a, zeroinitializer
+  %b = sdiv <2 x i32> %a, <i32 0, i32 0>
+  ret <2 x i32> %b
+}
+
+define <2 x i32> @use_vector_sdiv_by_undef_x(<2 x i32> %a) nounwind {
+; CHECK: Undefined behavior: Division by zero
+; CHECK-NEXT: %b = sdiv <2 x i32> %a, <i32 undef, i32 5>
+  %b = sdiv <2 x i32> %a, <i32 undef, i32 5>
+  ret <2 x i32> %b
+}
+
+define <2 x i32> @use_vector_sdiv_by_undef_y(<2 x i32> %a) nounwind {
+; CHECK: Undefined behavior: Division by zero
+; CHECK-NEXT: %b = sdiv <2 x i32> %a, <i32 5, i32 undef>
+  %b = sdiv <2 x i32> %a, <i32 5, i32 undef>
+  ret <2 x i32> %b
+}
+
+define <2 x i32> @use_vector_sdiv_by_undef_xy(<2 x i32> %a) nounwind {
+; CHECK: Undefined behavior: Division by zero
+; CHECK-NEXT: %b = sdiv <2 x i32> %a, undef
+  %b = sdiv <2 x i32> %a, <i32 undef, i32 undef>
+  ret <2 x i32> %b
+}
+
diff --git a/test/Analysis/Lint/lit.local.cfg b/test/Analysis/Lint/lit.local.cfg
new file mode 100644
index 0000000..c6106e4
--- /dev/null
+++ b/test/Analysis/Lint/lit.local.cfg
@@ -0,0 +1 @@
+config.suffixes = ['.ll']
-- 
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