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-rw-r--r--test/Transforms/InstCombine/trunc.ll24
1 files changed, 22 insertions, 2 deletions
diff --git a/test/Transforms/InstCombine/trunc.ll b/test/Transforms/InstCombine/trunc.ll
index f98bfd9..6ec342a 100644
--- a/test/Transforms/InstCombine/trunc.ll
+++ b/test/Transforms/InstCombine/trunc.ll
@@ -24,7 +24,7 @@ define i64 @test2(i64 %a) {
ret i64 %d
; CHECK: @test2
; CHECK: shl i64 %a, 36
-; CHECK: %d = ashr i64 {{.*}}, 36
+; CHECK: %d = ashr exact i64 {{.*}}, 36
; CHECK: ret i64 %d
}
define i64 @test3(i64 %a) {
@@ -92,8 +92,28 @@ define i64 @test8(i32 %A, i32 %B) {
; CHECK: @test8
; CHECK: %tmp38 = zext i32 %A to i64
; CHECK: %tmp32 = zext i32 %B to i64
-; CHECK: %tmp33 = shl i64 %tmp32, 32
+; CHECK: %tmp33 = shl nuw i64 %tmp32, 32
; CHECK: %ins35 = or i64 %tmp33, %tmp38
; CHECK: ret i64 %ins35
}
+define i8 @test9(i32 %X) {
+ %Y = and i32 %X, 42
+ %Z = trunc i32 %Y to i8
+ ret i8 %Z
+; CHECK: @test9
+; CHECK: trunc
+; CHECK: and
+; CHECK: ret
+}
+
+; rdar://8808586
+define i8 @test10(i32 %X) {
+ %Y = trunc i32 %X to i8
+ %Z = and i8 %Y, 42
+ ret i8 %Z
+; CHECK: @test10
+; CHECK: trunc
+; CHECK: and
+; CHECK: ret
+}
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