1 files changed, 172 insertions, 0 deletions
diff --git a/test/Transforms/ConstProp/overflow-ops.ll b/test/Transforms/ConstProp/overflow-ops.ll
new file mode 100644
index 0000000..1547a4d
--- /dev/null
+++ b/test/Transforms/ConstProp/overflow-ops.ll
@@ -0,0 +1,172 @@
+; RUN: opt < %s -constprop -S | FileCheck %s
+
+%i8i1 = type {i8, i1}
+
+;;-----------------------------
+;; uadd
+;;-----------------------------
+
+define {i8, i1} @uadd_1() nounwind {
+entry:
+  %t = call {i8, i1} @llvm.uadd.with.overflow.i8(i8 42, i8 100)
+  ret {i8, i1} %t
+
+; CHECK: @uadd_1
+; CHECK: ret %i8i1 { i8 -114, i1 false }
+}
+
+define {i8, i1} @uadd_2() nounwind {
+entry:
+  %t = call {i8, i1} @llvm.uadd.with.overflow.i8(i8 142, i8 120)
+  ret {i8, i1} %t
+
+; CHECK: @uadd_2
+; CHECK: ret %i8i1 { i8 6, i1 true }
+}
+
+;;-----------------------------
+;; usub
+;;-----------------------------
+
+define {i8, i1} @usub_1() nounwind {
+entry:
+  %t = call {i8, i1} @llvm.usub.with.overflow.i8(i8 4, i8 2)
+  ret {i8, i1} %t
+
+; CHECK: @usub_1
+; CHECK: ret %i8i1 { i8 2, i1 false }
+}
+
+define {i8, i1} @usub_2() nounwind {
+entry:
+  %t = call {i8, i1} @llvm.usub.with.overflow.i8(i8 4, i8 6)
+  ret {i8, i1} %t
+
+; CHECK: @usub_2
+; CHECK: ret %i8i1 { i8 -2, i1 true }
+}
+
+;;-----------------------------
+;; sadd
+;;-----------------------------
+
+define {i8, i1} @sadd_1() nounwind {
+entry:
+  %t = call {i8, i1} @llvm.sadd.with.overflow.i8(i8 42, i8 2)
+  ret {i8, i1} %t
+
+; CHECK: @sadd_1
+; CHECK: ret %i8i1 { i8 44, i1 false }
+}
+
+define {i8, i1} @sadd_2() nounwind {
+entry:
+  %t = call {i8, i1} @llvm.sadd.with.overflow.i8(i8 120, i8 10)
+  ret {i8, i1} %t
+
+; CHECK: @sadd_2
+; CHECK: ret %i8i1 { i8 -126, i1 true }
+}
+
+define {i8, i1} @sadd_3() nounwind {
+entry:
+  %t = call {i8, i1} @llvm.sadd.with.overflow.i8(i8 -120, i8 10)
+  ret {i8, i1} %t
+
+; CHECK: @sadd_3
+; CHECK: ret %i8i1 { i8 -110, i1 false }
+}
+
+define {i8, i1} @sadd_4() nounwind {
+entry:
+  %t = call {i8, i1} @llvm.sadd.with.overflow.i8(i8 -120, i8 -10)
+  ret {i8, i1} %t
+
+; CHECK: @sadd_4
+; CHECK: ret %i8i1 { i8 126, i1 true }
+}
+
+define {i8, i1} @sadd_5() nounwind {
+entry:
+  %t = call {i8, i1} @llvm.sadd.with.overflow.i8(i8 2, i8 -10)
+  ret {i8, i1} %t
+
+; CHECK: @sadd_5
+; CHECK: ret %i8i1 { i8 -8, i1 false }
+}
+
+
+;;-----------------------------
+;; ssub
+;;-----------------------------
+
+define {i8, i1} @ssub_1() nounwind {
+entry:
+  %t = call {i8, i1} @llvm.ssub.with.overflow.i8(i8 4, i8 2)
+  ret {i8, i1} %t
+
+; CHECK: @ssub_1
+; CHECK: ret %i8i1 { i8 2, i1 false }
+}
+
+define {i8, i1} @ssub_2() nounwind {
+entry:
+  %t = call {i8, i1} @llvm.ssub.with.overflow.i8(i8 4, i8 6)
+  ret {i8, i1} %t
+
+; CHECK: @ssub_2
+; CHECK: ret %i8i1 { i8 -2, i1 false }
+}
+
+define {i8, i1} @ssub_3() nounwind {
+entry:
+  %t = call {i8, i1} @llvm.ssub.with.overflow.i8(i8 -10, i8 120)
+  ret {i8, i1} %t
+
+; CHECK: @ssub_3
+; CHECK: ret %i8i1 { i8 126, i1 true }
+}
+
+define {i8, i1} @ssub_3b() nounwind {
+entry:
+  %t = call {i8, i1} @llvm.ssub.with.overflow.i8(i8 -10, i8 10)
+  ret {i8, i1} %t
+
+; CHECK: @ssub_3b
+; CHECK: ret %i8i1 { i8 -20, i1 false }
+}
+
+define {i8, i1} @ssub_4() nounwind {
+entry:
+  %t = call {i8, i1} @llvm.ssub.with.overflow.i8(i8 120, i8 -10)
+  ret {i8, i1} %t
+
+; CHECK: @ssub_4
+; CHECK: ret %i8i1 { i8 -126, i1 true }
+}
+
+define {i8, i1} @ssub_4b() nounwind {
+entry:
+  %t = call {i8, i1} @llvm.ssub.with.overflow.i8(i8 20, i8 -10)
+  ret {i8, i1} %t
+
+; CHECK: @ssub_4b
+; CHECK: ret %i8i1 { i8 30, i1 false }
+}
+
+define {i8, i1} @ssub_5() nounwind {
+entry:
+  %t = call {i8, i1} @llvm.ssub.with.overflow.i8(i8 -20, i8 -10)
+  ret {i8, i1} %t
+
+; CHECK: @ssub_5
+; CHECK: ret %i8i1 { i8 -10, i1 false }
+}
+
+
+
+declare {i8, i1} @llvm.uadd.with.overflow.i8(i8, i8)
+declare {i8, i1} @llvm.usub.with.overflow.i8(i8, i8)
+
+declare {i8, i1} @llvm.sadd.with.overflow.i8(i8, i8)
+declare {i8, i1} @llvm.ssub.with.overflow.i8(i8, i8)