; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt -passes=instcombine -S < %s | FileCheck %s define float @matching_scalar(<4 x float>* dereferenceable(16) %p) { ; CHECK-LABEL: @matching_scalar( ; CHECK-NEXT: [[BC:%.*]] = getelementptr inbounds <4 x float>, <4 x float>* [[P:%.*]], i64 0, i64 0 ; CHECK-NEXT: [[R:%.*]] = load float, float* [[BC]], align 16 ; CHECK-NEXT: ret float [[R]] ; %bc = bitcast <4 x float>* %p to float* %r = load float, float* %bc, align 16 ret float %r } define i32 @nonmatching_scalar(<4 x float>* dereferenceable(16) %p) { ; CHECK-LABEL: @nonmatching_scalar( ; CHECK-NEXT: [[BC:%.*]] = bitcast <4 x float>* [[P:%.*]] to i32* ; CHECK-NEXT: [[R:%.*]] = load i32, i32* [[BC]], align 16 ; CHECK-NEXT: ret i32 [[R]] ; %bc = bitcast <4 x float>* %p to i32* %r = load i32, i32* %bc, align 16 ret i32 %r } define i64 @larger_scalar(<4 x float>* dereferenceable(16) %p) { ; CHECK-LABEL: @larger_scalar( ; CHECK-NEXT: [[BC:%.*]] = bitcast <4 x float>* [[P:%.*]] to i64* ; CHECK-NEXT: [[R:%.*]] = load i64, i64* [[BC]], align 16 ; CHECK-NEXT: ret i64 [[R]] ; %bc = bitcast <4 x float>* %p to i64* %r = load i64, i64* %bc, align 16 ret i64 %r } define i8 @smaller_scalar(<4 x float>* dereferenceable(16) %p) { ; CHECK-LABEL: @smaller_scalar( ; CHECK-NEXT: [[BC:%.*]] = bitcast <4 x float>* [[P:%.*]] to i8* ; CHECK-NEXT: [[R:%.*]] = load i8, i8* [[BC]], align 16 ; CHECK-NEXT: ret i8 [[R]] ; %bc = bitcast <4 x float>* %p to i8* %r = load i8, i8* %bc, align 16 ret i8 %r } define i8 @smaller_scalar_less_aligned(<4 x float>* dereferenceable(16) %p) { ; CHECK-LABEL: @smaller_scalar_less_aligned( ; CHECK-NEXT: [[BC:%.*]] = bitcast <4 x float>* [[P:%.*]] to i8* ; CHECK-NEXT: [[R:%.*]] = load i8, i8* [[BC]], align 4 ; CHECK-NEXT: ret i8 [[R]] ; %bc = bitcast <4 x float>* %p to i8* %r = load i8, i8* %bc, align 4 ret i8 %r } define float @matching_scalar_small_deref(<4 x float>* dereferenceable(15) %p) { ; CHECK-LABEL: @matching_scalar_small_deref( ; CHECK-NEXT: [[BC:%.*]] = getelementptr inbounds <4 x float>, <4 x float>* [[P:%.*]], i64 0, i64 0 ; CHECK-NEXT: [[R:%.*]] = load float, float* [[BC]], align 16 ; CHECK-NEXT: ret float [[R]] ; %bc = bitcast <4 x float>* %p to float* %r = load float, float* %bc, align 16 ret float %r } define float @matching_scalar_smallest_deref(<4 x float>* dereferenceable(1) %p) { ; CHECK-LABEL: @matching_scalar_smallest_deref( ; CHECK-NEXT: [[BC:%.*]] = getelementptr inbounds <4 x float>, <4 x float>* [[P:%.*]], i64 0, i64 0 ; CHECK-NEXT: [[R:%.*]] = load float, float* [[BC]], align 16 ; CHECK-NEXT: ret float [[R]] ; %bc = bitcast <4 x float>* %p to float* %r = load float, float* %bc, align 16 ret float %r } define float @matching_scalar_smallest_deref_or_null(<4 x float>* dereferenceable_or_null(1) %p) { ; CHECK-LABEL: @matching_scalar_smallest_deref_or_null( ; CHECK-NEXT: [[BC:%.*]] = getelementptr inbounds <4 x float>, <4 x float>* [[P:%.*]], i64 0, i64 0 ; CHECK-NEXT: [[R:%.*]] = load float, float* [[BC]], align 16 ; CHECK-NEXT: ret float [[R]] ; %bc = bitcast <4 x float>* %p to float* %r = load float, float* %bc, align 16 ret float %r } define float @matching_scalar_smallest_deref_addrspace(<4 x float> addrspace(4)* dereferenceable(1) %p) { ; CHECK-LABEL: @matching_scalar_smallest_deref_addrspace( ; CHECK-NEXT: [[BC:%.*]] = getelementptr inbounds <4 x float>, <4 x float> addrspace(4)* [[P:%.*]], i64 0, i64 0 ; CHECK-NEXT: [[R:%.*]] = load float, float addrspace(4)* [[BC]], align 16 ; CHECK-NEXT: ret float [[R]] ; %bc = bitcast <4 x float> addrspace(4)* %p to float addrspace(4)* %r = load float, float addrspace(4)* %bc, align 16 ret float %r } ; A null pointer can't be assumed inbounds in a non-default address space. define float @matching_scalar_smallest_deref_or_null_addrspace(<4 x float> addrspace(4)* dereferenceable_or_null(1) %p) { ; CHECK-LABEL: @matching_scalar_smallest_deref_or_null_addrspace( ; CHECK-NEXT: [[BC:%.*]] = getelementptr <4 x float>, <4 x float> addrspace(4)* [[P:%.*]], i64 0, i64 0 ; CHECK-NEXT: [[R:%.*]] = load float, float addrspace(4)* [[BC]], align 16 ; CHECK-NEXT: ret float [[R]] ; %bc = bitcast <4 x float> addrspace(4)* %p to float addrspace(4)* %r = load float, float addrspace(4)* %bc, align 16 ret float %r } define float @matching_scalar_volatile(<4 x float>* dereferenceable(16) %p) { ; CHECK-LABEL: @matching_scalar_volatile( ; CHECK-NEXT: [[BC:%.*]] = getelementptr inbounds <4 x float>, <4 x float>* [[P:%.*]], i64 0, i64 0 ; CHECK-NEXT: [[R:%.*]] = load volatile float, float* [[BC]], align 16 ; CHECK-NEXT: ret float [[R]] ; %bc = bitcast <4 x float>* %p to float* %r = load volatile float, float* %bc, align 16 ret float %r } define float @nonvector(double* dereferenceable(16) %p) { ; CHECK-LABEL: @nonvector( ; CHECK-NEXT: [[BC:%.*]] = bitcast double* [[P:%.*]] to float* ; CHECK-NEXT: [[R:%.*]] = load float, float* [[BC]], align 16 ; CHECK-NEXT: ret float [[R]] ; %bc = bitcast double* %p to float* %r = load float, float* %bc, align 16 ret float %r }