1; RUN: opt -S -passes=instcombine < %s | FileCheck %s 2 3; When merging zero sized alloca check that requested alignments of the allocas 4; are obeyed. 5 6target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" 7target triple = "x86_64-apple-macosx10.8.0" 8 9@x = global ptr null, align 8 10@y = global ptr null, align 8 11 12; CHECK-LABEL: @f( 13; CHECK-NEXT: alloca [0 x i8], align 1024 14; CHECK-NOT: alloca 15; CHECK: ret void 16define void @f() { 17 %1 = alloca [0 x i8], align 1 18 %2 = alloca [0 x i8], align 1024 19 store ptr %1, ptr @x, align 8 20 store ptr %2, ptr @y, align 8 21 ret void 22} 23