From c1317939045d1907f1e4a20315feceb0afa384a2 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Sat, 14 Mar 2009 17:09:17 +0000
Subject: Apply a patch by Micah Villmow to fix AsmParser to accept vector
 shift constant expressions, and add support for folding vector shift constant
 expressions. This fixes PR3802.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67010 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/Assembler/vector-shift.ll | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

(limited to 'test/Assembler')

diff --git a/test/Assembler/vector-shift.ll b/test/Assembler/vector-shift.ll
index 3b2c07c..1850e66 100644
--- a/test/Assembler/vector-shift.ll
+++ b/test/Assembler/vector-shift.ll
@@ -1,6 +1,6 @@
-; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | grep shl
-; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | grep ashr
-; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | grep lshr
+; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | grep shl | count 1
+; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | grep ashr | count 1
+; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis | grep lshr | count 1
 
 define <4 x i32> @foo(<4 x i32> %a, <4 x i32> %b) nounwind  {
 entry:
@@ -19,3 +19,14 @@ entry:
 	%cmp = ashr <4 x i32> %a, %b		; <4 x i32> [#uses=1]
 	ret <4 x i32> %cmp
 }
+
+; Constant expressions: these should be folded.
+define <2 x i64> @foo_ce() nounwind {
+  ret <2 x i64> shl (<2 x i64> <i64 5, i64 6>, <2 x i64> <i64 3, i64 5>)
+}
+define <2 x i64> @bar_ce() nounwind {
+  ret <2 x i64> lshr (<2 x i64> <i64 340, i64 380>, <2 x i64> <i64 3, i64 5>)
+}
+define <2 x i64> @baz_ce() nounwind {
+  ret <2 x i64> ashr (<2 x i64> <i64 573, i64 411>, <2 x i64> <i64 3, i64 5>)
+}
-- 
cgit v1.1