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, 17 insertions, 0 deletions

diff --git a/test/CodeGen/PowerPC/2006-01-20-ShiftPartsCrash.ll b/test/CodeGen/PowerPC/2006-01-20-ShiftPartsCrash.ll
new file mode 100644
index 0000000..7700459
--- /dev/null
+++ b/test/CodeGen/PowerPC/2006-01-20-ShiftPartsCrash.ll
@@ -0,0 +1,17 @@
+; RUN: llvm-upgrade < %s | llvm-as | llc
+
+void %iterative_hash_host_wide_int() {
+	%zero = alloca int		        ; <int*> [#uses=2]
+	%b = alloca uint		        ; <uint*> [#uses=1]
+	store int 0, int* %zero
+	%tmp = load int* %zero		        ; <int> [#uses=1]
+	%tmp5 = cast int %tmp to uint		; <uint> [#uses=1]
+	%tmp6.u = add uint %tmp5, 32		; <uint> [#uses=1]
+	%tmp6 = cast uint %tmp6.u to int	; <int> [#uses=1]
+	%tmp7 = load long* null		        ; <long> [#uses=1]
+	%tmp6 = cast int %tmp6 to ubyte		; <ubyte> [#uses=1]
+	%tmp8 = shr long %tmp7, ubyte %tmp6	; <long> [#uses=1]
+	%tmp8 = cast long %tmp8 to uint		; <uint> [#uses=1]
+	store uint %tmp8, uint* %b
+	unreachable
+}