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

1 files changed, 35 insertions, 0 deletions

diff --git a/test/CodeGen/ARM/smul.ll b/test/CodeGen/ARM/smul.ll
new file mode 100644
index 0000000..4ea61f3
--- /dev/null
+++ b/test/CodeGen/ARM/smul.ll
@@ -0,0 +1,35 @@
+; RUN: llvm-upgrade < %s | llvm-as | llc -march=arm
+; RUN: llvm-upgrade < %s | llvm-as | llc -march=arm -mattr=+v5TE
+; RUN: llvm-upgrade < %s | llvm-as | llc -march=arm -mattr=+v5TE | \
+; RUN:   grep smulbt | wc -l | grep 1
+; RUN: llvm-upgrade < %s | llvm-as | llc -march=arm -mattr=+v5TE | \
+; RUN:   grep smultt | wc -l | grep 1
+; RUN: llvm-upgrade < %s | llvm-as | llc -march=arm -mattr=+v5TE | \
+; RUN:   grep smlabt | wc -l | grep 1
+
+%x = weak global short 0
+%y = weak global short 0
+
+int %f1(int %y) {
+	%tmp = load short* %x
+	%tmp1 = add short %tmp, 2
+	%tmp2 = cast short %tmp1 to int
+	%tmp3 = shr int %y, ubyte 16
+	%tmp4 = mul int %tmp2, %tmp3
+	ret int %tmp4
+}
+
+int %f2(int %x, int %y) {
+	%tmp1 = shr int %x, ubyte 16
+	%tmp3 = shr int %y, ubyte 16
+	%tmp4 = mul int %tmp3, %tmp1
+	ret int %tmp4
+}
+
+int %f3(int %a, short %x, int %y) {
+	%tmp = cast short %x to int
+	%tmp2 = shr int %y, ubyte 16
+	%tmp3 = mul int %tmp2, %tmp
+	%tmp5 = add int %tmp3, %a
+	ret int %tmp5
+}