test/Transforms/InstCombine/enforce-known-alignment.ll

; RUN: opt -passes=instcombine -S %s | FileCheck %s

target datalayout = "e-p:32:32:32-p1:16:16:16-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
target triple = "i386-apple-darwin9.6"

define void @foo(i32) {
; CHECK-LABEL: @foo(
; CHECK: alloca
; CHECK: align 16
	%2 = alloca [3 x <{ { { [2 x { { i32 } }], [2 x i8], { i16 }, [2 x i8], i8, i8 } } }>], align 16		; <ptr> [#uses=1]
	%3 = getelementptr [3 x <{ { { [2 x { { i32 } }], [2 x i8], { i16 }, [2 x i8], i8, i8 } } }>], ptr %2, i32 0, i32 0		; <ptr> [#uses=1]
	%4 = getelementptr <{ { { [2 x { { i32 } }], [2 x i8], { i16 }, [2 x i8], i8, i8 } } }>, ptr %3, i32 0, i32 0		; <ptr> [#uses=1]
	%5 = getelementptr { { [2 x { { i32 } }], [2 x i8], { i16 }, [2 x i8], i8, i8 } }, ptr %4, i32 0, i32 0		; <ptr> [#uses=1]
	%6 = getelementptr { [8 x i16] }, ptr %5, i32 0, i32 0		; <ptr> [#uses=1]
	%7 = getelementptr [8 x i16], ptr %6, i32 0, i32 0		; <ptr> [#uses=1]
	store i16 0, ptr %7, align 16
    call void @bar(ptr %7)
	ret void
}

declare void @bar(ptr)

define void @foo_as1(i32 %a, ptr addrspace(1) %b) {
; CHECK-LABEL: @foo_as1(
; CHECK: align 16
  %1 = getelementptr [3 x <{ { { [2 x { { i32 } }], [2 x i8], { i16 }, [2 x i8], i8, i8 } } }>], ptr addrspace(1) %b, i32 0, i32 0        ; <ptr> [#uses=1]
  %2 = getelementptr <{ { { [2 x { { i32 } }], [2 x i8], { i16 }, [2 x i8], i8, i8 } } }>, ptr addrspace(1) %1, i32 0, i32 0      ; <ptr> [#uses=1]
  %3 = getelementptr { { [2 x { { i32 } }], [2 x i8], { i16 }, [2 x i8], i8, i8 } }, ptr addrspace(1) %2, i32 0, i32 0        ; <ptr> [#uses=1]
  %4 = getelementptr { [8 x i16] }, ptr addrspace(1) %3, i32 0, i32 0     ; <ptr> [#uses=1]
  %5 = getelementptr [8 x i16], ptr addrspace(1) %4, i32 0, i32 0     ; <ptr> [#uses=1]
  store i16 0, ptr addrspace(1) %5, align 16
  call void @bar_as1(ptr addrspace(1) %5)
  ret void
}

declare void @bar_as1(ptr addrspace(1))