From 8dd34173849aae00afd9c1c7880dc0acbce4ade8 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Sun, 19 Dec 2010 20:01:13 +0000
Subject: [PATCH] add a general coverage test for overflow intrinsics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122185 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/CodeGen/Generic/overflow.ll | 220 +++++++++++++++++++++++++++++++
 1 file changed, 220 insertions(+)
 create mode 100644 test/CodeGen/Generic/overflow.ll

diff --git a/test/CodeGen/Generic/overflow.ll b/test/CodeGen/Generic/overflow.ll
new file mode 100644
index 00000000000..4196855c4ee
--- /dev/null
+++ b/test/CodeGen/Generic/overflow.ll
@@ -0,0 +1,220 @@
+; RUN: llc < %s
+; Verify codegen's don't crash on overflow intrinsics.
+
+;; SADD
+
+define zeroext i8 @sadd_i8(i8 signext %a, i8 signext %b) nounwind ssp {
+entry:
+  %sadd = tail call { i8, i1 } @llvm.sadd.with.overflow.i8(i8 %a, i8 %b)
+  %cmp = extractvalue { i8, i1 } %sadd, 1
+  %sadd.result = extractvalue { i8, i1 } %sadd, 0
+  %X = select i1 %cmp, i8 %sadd.result, i8 42
+  ret i8 %X
+}
+
+declare { i8, i1 } @llvm.sadd.with.overflow.i8(i8, i8) nounwind readnone
+
+define zeroext i16 @sadd_i16(i16 signext %a, i16 signext %b) nounwind ssp {
+entry:
+  %sadd = tail call { i16, i1 } @llvm.sadd.with.overflow.i16(i16 %a, i16 %b)
+  %cmp = extractvalue { i16, i1 } %sadd, 1
+  %sadd.result = extractvalue { i16, i1 } %sadd, 0
+  %X = select i1 %cmp, i16 %sadd.result, i16 42
+  ret i16 %X
+}
+
+declare { i16, i1 } @llvm.sadd.with.overflow.i16(i16, i16) nounwind readnone
+
+define zeroext i32 @sadd_i32(i32 signext %a, i32 signext %b) nounwind ssp {
+entry:
+  %sadd = tail call { i32, i1 } @llvm.sadd.with.overflow.i32(i32 %a, i32 %b)
+  %cmp = extractvalue { i32, i1 } %sadd, 1
+  %sadd.result = extractvalue { i32, i1 } %sadd, 0
+  %X = select i1 %cmp, i32 %sadd.result, i32 42
+  ret i32 %X
+}
+
+declare { i32, i1 } @llvm.sadd.with.overflow.i32(i32, i32) nounwind readnone
+
+
+;; UADD
+
+define zeroext i8 @uadd_i8(i8 signext %a, i8 signext %b) nounwind ssp {
+entry:
+  %uadd = tail call { i8, i1 } @llvm.uadd.with.overflow.i8(i8 %a, i8 %b)
+  %cmp = extractvalue { i8, i1 } %uadd, 1
+  %uadd.result = extractvalue { i8, i1 } %uadd, 0
+  %X = select i1 %cmp, i8 %uadd.result, i8 42
+  ret i8 %X
+}
+
+declare { i8, i1 } @llvm.uadd.with.overflow.i8(i8, i8) nounwind readnone
+
+define zeroext i16 @uadd_i16(i16 signext %a, i16 signext %b) nounwind ssp {
+entry:
+  %uadd = tail call { i16, i1 } @llvm.uadd.with.overflow.i16(i16 %a, i16 %b)
+  %cmp = extractvalue { i16, i1 } %uadd, 1
+  %uadd.result = extractvalue { i16, i1 } %uadd, 0
+  %X = select i1 %cmp, i16 %uadd.result, i16 42
+  ret i16 %X
+}
+
+declare { i16, i1 } @llvm.uadd.with.overflow.i16(i16, i16) nounwind readnone
+
+define zeroext i32 @uadd_i32(i32 signext %a, i32 signext %b) nounwind ssp {
+entry:
+  %uadd = tail call { i32, i1 } @llvm.uadd.with.overflow.i32(i32 %a, i32 %b)
+  %cmp = extractvalue { i32, i1 } %uadd, 1
+  %uadd.result = extractvalue { i32, i1 } %uadd, 0
+  %X = select i1 %cmp, i32 %uadd.result, i32 42
+  ret i32 %X
+}
+
+declare { i32, i1 } @llvm.uadd.with.overflow.i32(i32, i32) nounwind readnone
+
+
+
+;; ssub
+
+define zeroext i8 @ssub_i8(i8 signext %a, i8 signext %b) nounwind ssp {
+entry:
+  %ssub = tail call { i8, i1 } @llvm.ssub.with.overflow.i8(i8 %a, i8 %b)
+  %cmp = extractvalue { i8, i1 } %ssub, 1
+  %ssub.result = extractvalue { i8, i1 } %ssub, 0
+  %X = select i1 %cmp, i8 %ssub.result, i8 42
+  ret i8 %X
+}
+
+declare { i8, i1 } @llvm.ssub.with.overflow.i8(i8, i8) nounwind readnone
+
+define zeroext i16 @ssub_i16(i16 signext %a, i16 signext %b) nounwind ssp {
+entry:
+  %ssub = tail call { i16, i1 } @llvm.ssub.with.overflow.i16(i16 %a, i16 %b)
+  %cmp = extractvalue { i16, i1 } %ssub, 1
+  %ssub.result = extractvalue { i16, i1 } %ssub, 0
+  %X = select i1 %cmp, i16 %ssub.result, i16 42
+  ret i16 %X
+}
+
+declare { i16, i1 } @llvm.ssub.with.overflow.i16(i16, i16) nounwind readnone
+
+define zeroext i32 @ssub_i32(i32 signext %a, i32 signext %b) nounwind ssp {
+entry:
+  %ssub = tail call { i32, i1 } @llvm.ssub.with.overflow.i32(i32 %a, i32 %b)
+  %cmp = extractvalue { i32, i1 } %ssub, 1
+  %ssub.result = extractvalue { i32, i1 } %ssub, 0
+  %X = select i1 %cmp, i32 %ssub.result, i32 42
+  ret i32 %X
+}
+
+declare { i32, i1 } @llvm.ssub.with.overflow.i32(i32, i32) nounwind readnone
+
+
+;; usub
+
+define zeroext i8 @usub_i8(i8 signext %a, i8 signext %b) nounwind ssp {
+entry:
+  %usub = tail call { i8, i1 } @llvm.usub.with.overflow.i8(i8 %a, i8 %b)
+  %cmp = extractvalue { i8, i1 } %usub, 1
+  %usub.result = extractvalue { i8, i1 } %usub, 0
+  %X = select i1 %cmp, i8 %usub.result, i8 42
+  ret i8 %X
+}
+
+declare { i8, i1 } @llvm.usub.with.overflow.i8(i8, i8) nounwind readnone
+
+define zeroext i16 @usub_i16(i16 signext %a, i16 signext %b) nounwind ssp {
+entry:
+  %usub = tail call { i16, i1 } @llvm.usub.with.overflow.i16(i16 %a, i16 %b)
+  %cmp = extractvalue { i16, i1 } %usub, 1
+  %usub.result = extractvalue { i16, i1 } %usub, 0
+  %X = select i1 %cmp, i16 %usub.result, i16 42
+  ret i16 %X
+}
+
+declare { i16, i1 } @llvm.usub.with.overflow.i16(i16, i16) nounwind readnone
+
+define zeroext i32 @usub_i32(i32 signext %a, i32 signext %b) nounwind ssp {
+entry:
+  %usub = tail call { i32, i1 } @llvm.usub.with.overflow.i32(i32 %a, i32 %b)
+  %cmp = extractvalue { i32, i1 } %usub, 1
+  %usub.result = extractvalue { i32, i1 } %usub, 0
+  %X = select i1 %cmp, i32 %usub.result, i32 42
+  ret i32 %X
+}
+
+declare { i32, i1 } @llvm.usub.with.overflow.i32(i32, i32) nounwind readnone
+
+
+
+;; smul
+
+define zeroext i8 @smul_i8(i8 signext %a, i8 signext %b) nounwind ssp {
+entry:
+  %smul = tail call { i8, i1 } @llvm.smul.with.overflow.i8(i8 %a, i8 %b)
+  %cmp = extractvalue { i8, i1 } %smul, 1
+  %smul.result = extractvalue { i8, i1 } %smul, 0
+  %X = select i1 %cmp, i8 %smul.result, i8 42
+  ret i8 %X
+}
+
+declare { i8, i1 } @llvm.smul.with.overflow.i8(i8, i8) nounwind readnone
+
+define zeroext i16 @smul_i16(i16 signext %a, i16 signext %b) nounwind ssp {
+entry:
+  %smul = tail call { i16, i1 } @llvm.smul.with.overflow.i16(i16 %a, i16 %b)
+  %cmp = extractvalue { i16, i1 } %smul, 1
+  %smul.result = extractvalue { i16, i1 } %smul, 0
+  %X = select i1 %cmp, i16 %smul.result, i16 42
+  ret i16 %X
+}
+
+declare { i16, i1 } @llvm.smul.with.overflow.i16(i16, i16) nounwind readnone
+
+define zeroext i32 @smul_i32(i32 signext %a, i32 signext %b) nounwind ssp {
+entry:
+  %smul = tail call { i32, i1 } @llvm.smul.with.overflow.i32(i32 %a, i32 %b)
+  %cmp = extractvalue { i32, i1 } %smul, 1
+  %smul.result = extractvalue { i32, i1 } %smul, 0
+  %X = select i1 %cmp, i32 %smul.result, i32 42
+  ret i32 %X
+}
+
+declare { i32, i1 } @llvm.smul.with.overflow.i32(i32, i32) nounwind readnone
+
+
+;; umul
+
+define zeroext i8 @umul_i8(i8 signext %a, i8 signext %b) nounwind ssp {
+entry:
+  %umul = tail call { i8, i1 } @llvm.umul.with.overflow.i8(i8 %a, i8 %b)
+  %cmp = extractvalue { i8, i1 } %umul, 1
+  %umul.result = extractvalue { i8, i1 } %umul, 0
+  %X = select i1 %cmp, i8 %umul.result, i8 42
+  ret i8 %X
+}
+
+declare { i8, i1 } @llvm.umul.with.overflow.i8(i8, i8) nounwind readnone
+
+define zeroext i16 @umul_i16(i16 signext %a, i16 signext %b) nounwind ssp {
+entry:
+  %umul = tail call { i16, i1 } @llvm.umul.with.overflow.i16(i16 %a, i16 %b)
+  %cmp = extractvalue { i16, i1 } %umul, 1
+  %umul.result = extractvalue { i16, i1 } %umul, 0
+  %X = select i1 %cmp, i16 %umul.result, i16 42
+  ret i16 %X
+}
+
+declare { i16, i1 } @llvm.umul.with.overflow.i16(i16, i16) nounwind readnone
+
+define zeroext i32 @umul_i32(i32 signext %a, i32 signext %b) nounwind ssp {
+entry:
+  %umul = tail call { i32, i1 } @llvm.umul.with.overflow.i32(i32 %a, i32 %b)
+  %cmp = extractvalue { i32, i1 } %umul, 1
+  %umul.result = extractvalue { i32, i1 } %umul, 0
+  %X = select i1 %cmp, i32 %umul.result, i32 42
+  ret i32 %X
+}
+
+declare { i32, i1 } @llvm.umul.with.overflow.i32(i32, i32) nounwind readnone
+