llvm/test/Analysis/CostModel/RISCV/gep-zero-indices.ll

; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 2
; RUN: opt -mtriple=riscv32 -mattr=+v -passes="print<cost-model>" 2>&1 -disable-output < %s \
; RUN:   | FileCheck %s
; RUN: opt -mtriple=riscv64 -mattr=+v -passes="print<cost-model>" 2>&1 -disable-output < %s \
; RUN:   | FileCheck %s

; These GEPs should all cost zero becuase all the indices operands are zero, so
; no computation actually needs to happen.

define ptr @zero_indices_i8(ptr %p) {
; CHECK-LABEL: 'zero_indices_i8'
; CHECK-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %x = getelementptr i8, ptr %p, i32 0
; CHECK-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: ret ptr %x
;
  %x = getelementptr i8, ptr %p, i32 0
  ret ptr %x
}

define ptr @zero_indices_i16(ptr %p) {
; CHECK-LABEL: 'zero_indices_i16'
; CHECK-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %x = getelementptr i16, ptr %p, i32 0
; CHECK-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: ret ptr %x
;
  %x = getelementptr i16, ptr %p, i32 0
  ret ptr %x
}

define ptr @zero_indices_i32(ptr %p) {
; CHECK-LABEL: 'zero_indices_i32'
; CHECK-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %x = getelementptr i32, ptr %p, i32 0
; CHECK-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: ret ptr %x
;
  %x = getelementptr i32, ptr %p, i32 0
  ret ptr %x
}

define ptr @zero_indices_i64(ptr %p) {
; CHECK-LABEL: 'zero_indices_i64'
; CHECK-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %x = getelementptr i64, ptr %p, i32 0
; CHECK-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: ret ptr %x
;
  %x = getelementptr i64, ptr %p, i32 0
  ret ptr %x
}

define ptr @zero_indices_array(ptr %p) {
; CHECK-LABEL: 'zero_indices_array'
; CHECK-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %x = getelementptr [42 x i64], ptr %p, i32 0, i32 0
; CHECK-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: ret ptr %x
;
  %x = getelementptr [42 x i64], ptr %p, i32 0, i32 0
  ret ptr %x
}

%struct = type { %struct.inner }
%struct.inner = type { %struct.inner.inner }
%struct.inner.inner = type { i32 }

define ptr @zero_indices_struct(ptr %p) {
; CHECK-LABEL: 'zero_indices_struct'
; CHECK-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %x = getelementptr %struct, ptr %p, i32 0, i32 0, i32 0
; CHECK-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: ret ptr %x
;
  %x = getelementptr %struct, ptr %p, i32 0, i32 0, i32 0
  ret ptr %x
}

define <4 x ptr> @zero_indices_v4i32(<4 x ptr> %p) {
; CHECK-LABEL: 'zero_indices_v4i32'
; CHECK-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %x = getelementptr i32, <4 x ptr> %p, <4 x i32> zeroinitializer
; CHECK-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: ret <4 x ptr> %x
;
  %x = getelementptr i32, <4 x ptr> %p, <4 x i32> zeroinitializer
  ret <4 x ptr> %x
}

define <16 x ptr> @zero_indices_v16i32(<16 x ptr> %p) {
; CHECK-LABEL: 'zero_indices_v16i32'
; CHECK-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %x = getelementptr i32, <16 x ptr> %p, <16 x i32> zeroinitializer
; CHECK-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: ret <16 x ptr> %x
;
  %x = getelementptr i32, <16 x ptr> %p, <16 x i32> zeroinitializer
  ret <16 x ptr> %x
}

define <4 x ptr> @zero_indices_v4f32(<4 x ptr> %p) {
; CHECK-LABEL: 'zero_indices_v4f32'
; CHECK-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %x = getelementptr float, <4 x ptr> %p, <4 x i32> zeroinitializer
; CHECK-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: ret <4 x ptr> %x
;
  %x = getelementptr float, <4 x ptr> %p, <4 x i32> zeroinitializer
  ret <4 x ptr> %x
}

define <4 x ptr> @zero_indices_v4v4i32(<4 x ptr> %p) {
; CHECK-LABEL: 'zero_indices_v4v4i32'
; CHECK-NEXT:  Cost Model: Found an estimated cost of 0 for instruction: %x = getelementptr <32 x i32>, <4 x ptr> %p, <4 x i32> zeroinitializer, <4 x i32> zeroinitializer
; CHECK-NEXT:  Cost Model: Found an estimated cost of 1 for instruction: ret <4 x ptr> %x
;
  %x = getelementptr <32 x i32>, <4 x ptr> %p, <4 x i32> zeroinitializer, <4 x i32> zeroinitializer
  ret <4 x ptr> %x
}