; RUN: opt -S -instcombine < %s | FileCheck %s ; Instcombine should preserve metadata and alignment while ; folding a bitcast into a store. target 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" %struct.A = type { i32 (...)** } @G = external constant [5 x i8*] ; CHECK-LABEL: @foo ; CHECK: store i32 %x, i32* %{{.*}}, align 16, !noalias !0 define void @foo(i32 %x, float* %p) nounwind { entry: %x.cast = bitcast i32 %x to float store float %x.cast, float* %p, align 16, !noalias !0 ret void } ; Check instcombine doesn't try and fold the following bitcast into the store. ; This transformation would not be safe since we would need to use addrspacecast ; and addrspacecast is not guaranteed to be a no-op cast. ; CHECK-LABEL: @bar ; CHECK: %cast = bitcast i8** %b to i8 addrspace(1)** ; CHECK: store i8 addrspace(1)* %a, i8 addrspace(1)** %cast define void @bar(i8 addrspace(1)* %a, i8** %b) nounwind { entry: %cast = bitcast i8** %b to i8 addrspace(1)** store i8 addrspace(1)* %a, i8 addrspace(1)** %cast ret void } !0 = !{!0}