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-folding.ll b/test/CodeGen/X86/shift-folding.ll
new file mode 100644
index 0000000..671476a
--- /dev/null
+++ b/test/CodeGen/X86/shift-folding.ll
@@ -0,0 +1,20 @@
+; RUN: llvm-upgrade < %s | llvm-as | llc -march=x86 | \
+; RUN: grep {s\[ah\]\[rl\]l} | wc -l | grep 1
+
+int* %test1(int *%P, uint %X) {
+ %Y = shr uint %X, ubyte 2
+ %P2 = getelementptr int* %P, uint %Y
+ ret int* %P2
+}
+
+int* %test2(int *%P, uint %X) {
+ %Y = shl uint %X, ubyte 2
+ %P2 = getelementptr int* %P, uint %Y
+ ret int* %P2
+}
+
+int* %test3(int *%P, int %X) {
+ %Y = shr int %X, ubyte 2
+ %P2 = getelementptr int* %P, int %Y
+ ret int* %P2
+}