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authorOwen Anderson <resistor@mac.com>2010-08-20 18:24:43 +0000
committerOwen Anderson <resistor@mac.com>2010-08-20 18:24:43 +0000
commita4cba04a0384881f8f18d0e2253ae0bc69e64d2d (patch)
tree65c8dd1a290f09ca7f25df59c9e3fce35bf9a4a3 /test/Transforms
parente82e7700ea37a38e2e059c95420caec8dbc172c4 (diff)
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Re-apply r111568 with a fix for the clang self-host.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111665 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms')
-rw-r--r--test/Transforms/InstCombine/2010-08-19-StoreNarrowing.ll21
1 files changed, 21 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/2010-08-19-StoreNarrowing.ll b/test/Transforms/InstCombine/2010-08-19-StoreNarrowing.ll
new file mode 100644
index 0000000..d4d5289
--- /dev/null
+++ b/test/Transforms/InstCombine/2010-08-19-StoreNarrowing.ll
@@ -0,0 +1,21 @@
+; RUN: opt -S -instcombine %s | not grep and
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
+target triple = "x86_64-apple-darwin10.0.0"
+
+%class.A = type { i8, [3 x i8] }
+
+define void @_ZN1AC2Ev(%class.A* %this) nounwind ssp align 2 {
+entry:
+ %0 = bitcast %class.A* %this to i32* ; <i32*> [#uses=5]
+ %1 = load i32* %0, align 4 ; <i32> [#uses=1]
+ %2 = and i32 %1, -8 ; <i32> [#uses=2]
+ store i32 %2, i32* %0, align 4
+ %3 = and i32 %2, -57 ; <i32> [#uses=1]
+ %4 = or i32 %3, 8 ; <i32> [#uses=2]
+ store i32 %4, i32* %0, align 4
+ %5 = and i32 %4, -65 ; <i32> [#uses=2]
+ store i32 %5, i32* %0, align 4
+ %6 = and i32 %5, -129 ; <i32> [#uses=1]
+ store i32 %6, i32* %0, align 4
+ ret void
+}