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/Generic/constindices.ll b/test/CodeGen/Generic/constindices.ll
new file mode 100644
index 0000000..b176144
--- /dev/null
+++ b/test/CodeGen/Generic/constindices.ll
@@ -0,0 +1,56 @@
+; RUN: llvm-upgrade %s | llvm-as | llc
+
+; Test that a sequence of constant indices are folded correctly
+; into the equivalent offset at compile-time.
+
+%MixedA = type { float, [15 x int], sbyte, float }
+
+%MixedB = type { float, %MixedA, float }
+
+%fmtArg = internal global [44 x sbyte] c"sqrt(2) = %g\0Aexp(1) = %g\0Api = %g\0Afive = %g\0A\00"; <[44 x sbyte]*> [#uses=1]
+
+implementation
+
+declare int "printf"(sbyte*, ...)
+
+int "main"()
+begin
+ %ScalarA = alloca %MixedA
+ %ScalarB = alloca %MixedB
+ %ArrayA = alloca %MixedA, uint 4
+ %ArrayB = alloca %MixedB, uint 3
+
+ %I1 = getelementptr %MixedA* %ScalarA, long 0, uint 0
+ store float 1.4142, float *%I1
+ %I2 = getelementptr %MixedB* %ScalarB, long 0, uint 1, uint 0
+ store float 2.7183, float *%I2
+
+ %fptrA = getelementptr %MixedA* %ArrayA, long 1, uint 0
+ %fptrB = getelementptr %MixedB* %ArrayB, long 2, uint 1, uint 0
+
+ store float 3.1415, float* %fptrA
+ store float 5.0, float* %fptrB
+
+ ;; Test that a sequence of GEPs with constant indices are folded right
+ %fptrA1 = getelementptr %MixedA* %ArrayA, long 3 ; &ArrayA[3]
+ %fptrA2 = getelementptr %MixedA* %fptrA1, long 0, uint 1 ; &(*fptrA1).1
+ %fptrA3 = getelementptr [15 x int]* %fptrA2, long 0, long 8 ; &(*fptrA2)[8]
+ store int 5, int* %fptrA3 ; ArrayA[3].1[8] = 5
+
+ %sqrtTwo = load float *%I1
+ %exp = load float *%I2
+ %I3 = getelementptr %MixedA* %ArrayA, long 1, uint 0
+ %pi = load float* %I3
+ %I4 = getelementptr %MixedB* %ArrayB, long 2, uint 1, uint 0
+ %five = load float* %I4
+
+ %dsqrtTwo = cast float %sqrtTwo to double
+ %dexp = cast float %exp to double
+ %dpi = cast float %pi to double
+ %dfive = cast float %five to double
+
+ %castFmt = getelementptr [44 x sbyte]* %fmtArg, long 0, long 0
+ call int (sbyte*, ...)* %printf(sbyte* %castFmt, double %dsqrtTwo, double %dexp, double %dpi, double %dfive)
+
+ ret int 0
+end