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/PowerPC/2007-01-15-AsmDialect.ll b/test/CodeGen/PowerPC/2007-01-15-AsmDialect.ll
new file mode 100644
index 0000000..d9374ed
--- /dev/null
+++ b/test/CodeGen/PowerPC/2007-01-15-AsmDialect.ll
@@ -0,0 +1,27 @@
+; RUN: llvm-as < %s | llc -march=ppc32 -mtriple=powerpc-apple-darwin8 | \
+; RUN: grep cntlzw
+
+define i32 @foo() {
+entry:
+ %retval = alloca i32, align 4 ; <i32*> [#uses=2]
+ %temp = alloca i32, align 4 ; <i32*> [#uses=2]
+ %ctz_x = alloca i32, align 4 ; <i32*> [#uses=3]
+ %ctz_c = alloca i32, align 4 ; <i32*> [#uses=2]
+ "alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
+ store i32 61440, i32* %ctz_x
+ %tmp = load i32* %ctz_x ; <i32> [#uses=1]
+ %tmp1 = sub i32 0, %tmp ; <i32> [#uses=1]
+ %tmp2 = load i32* %ctz_x ; <i32> [#uses=1]
+ %tmp3 = and i32 %tmp1, %tmp2 ; <i32> [#uses=1]
+ %tmp4 = call i32 asm "$(cntlz$|cntlzw$) $0,$1", "=r,r,~{dirflag},~{fpsr},~{flags}"( i32 %tmp3 ) ; <i32> [#uses=1]
+ store i32 %tmp4, i32* %ctz_c
+ %tmp5 = load i32* %ctz_c ; <i32> [#uses=1]
+ store i32 %tmp5, i32* %temp
+ %tmp6 = load i32* %temp ; <i32> [#uses=1]
+ store i32 %tmp6, i32* %retval
+ br label %return
+
+return: ; preds = %entry
+ %retval2 = load i32* %retval ; <i32> [#uses=1]
+ ret i32 %retval2
+}