| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -passes=instcombine,verify -S | FileCheck %s |
| |
| define <2 x i8> @constprop_load_bitcast(ptr %ptr) { |
| ; CHECK-LABEL: @constprop_load_bitcast( |
| ; CHECK-NEXT: store <vscale x 16 x i1> zeroinitializer, ptr [[PTR:%.*]], align 16 |
| ; CHECK-NEXT: ret <2 x i8> zeroinitializer |
| ; |
| store <vscale x 16 x i1> zeroinitializer, ptr %ptr, align 16 |
| %a = load <2 x i8>, ptr %ptr, align 16 |
| ret <2 x i8> %a |
| } |
| |
| ; vscale-sized vec not guaranteed to fill destination. |
| define <8 x i8> @constprop_load_bitcast_neg(ptr %ptr) { |
| ; CHECK-LABEL: @constprop_load_bitcast_neg( |
| ; CHECK-NEXT: store <vscale x 16 x i1> zeroinitializer, ptr [[PTR:%.*]], align 16 |
| ; CHECK-NEXT: [[A:%.*]] = load <8 x i8>, ptr [[PTR]], align 16 |
| ; CHECK-NEXT: ret <8 x i8> [[A]] |
| ; |
| store <vscale x 16 x i1> zeroinitializer, ptr %ptr, align 16 |
| %a = load <8 x i8>, ptr %ptr, align 16 |
| ret <8 x i8> %a |
| } |