LegalizeTypes support for promotion of SIGN_EXTEND_INREG.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53603 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/PowerPC/2008-07-15-SignExtendInreg.ll b/test/CodeGen/PowerPC/2008-07-15-SignExtendInreg.ll
new file mode 100644
index 0000000..32e3642
--- /dev/null
+++ b/test/CodeGen/PowerPC/2008-07-15-SignExtendInreg.ll
@@ -0,0 +1,17 @@
+; RUN: llvm-as < %s | llc
+target datalayout = "E-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f128:64:128"
+target triple = "powerpc-apple-darwin9"
+
+define i16 @t(i16* %dct) signext nounwind {
+entry:
+ load i16* null, align 2 ; <i16>:0 [#uses=2]
+ lshr i16 %0, 11 ; <i16>:1 [#uses=0]
+ trunc i16 %0 to i8 ; <i8>:2 [#uses=1]
+ sext i8 %2 to i16 ; <i16>:3 [#uses=1]
+ add i16 0, %3 ; <i16>:4 [#uses=1]
+ sext i16 %4 to i32 ; <i32>:5 [#uses=1]
+ %dcval.0.in = shl i32 %5, 0 ; <i32> [#uses=1]
+ %dcval.0 = trunc i32 %dcval.0.in to i16 ; <i16> [#uses=1]
+ store i16 %dcval.0, i16* %dct, align 2
+ ret i16 0
+}