It's not necessary to do rounding for alloca operations when the requested
alignment is equal to the stack alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/X86/shift-codegen.ll b/test/CodeGen/X86/shift-codegen.ll
new file mode 100644
index 0000000..83235c0
--- /dev/null
+++ b/test/CodeGen/X86/shift-codegen.ll
@@ -0,0 +1,27 @@
+; RUN: llvm-as < %s | llc -relocation-model=static -march=x86 | \
+; RUN: grep {shll \$3} | wc -l | grep 2
+
+; This should produce two shll instructions, not any lea's.
+
+target triple = "i686-apple-darwin8"
+@Y = weak global i32 0 ; <i32*> [#uses=1]
+@X = weak global i32 0 ; <i32*> [#uses=2]
+
+
+define void @fn1() {
+entry:
+ %tmp = load i32* @Y ; <i32> [#uses=1]
+ %tmp1 = shl i32 %tmp, 3 ; <i32> [#uses=1]
+ %tmp2 = load i32* @X ; <i32> [#uses=1]
+ %tmp3 = or i32 %tmp1, %tmp2 ; <i32> [#uses=1]
+ store i32 %tmp3, i32* @X
+ ret void
+}
+
+define i32 @fn2(i32 %X, i32 %Y) {
+entry:
+ %tmp2 = shl i32 %Y, 3 ; <i32> [#uses=1]
+ %tmp4 = or i32 %tmp2, %X ; <i32> [#uses=1]
+ ret i32 %tmp4
+}
+