llvm/test/Transforms/GVN/PRE/load-metadata.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -S -passes=gvn < %s | FileCheck %s --check-prefixes=CHECK,MDEP
; RUN: opt -S -passes='gvn<memoryssa>' < %s | FileCheck %s --check-prefixes=CHECK,MSSA

define i32 @test1(ptr %p, i1 %C) {
; MDEP-LABEL: define i32 @test1(
; MDEP-SAME: ptr [[P:%.*]], i1 [[C:%.*]]) {
; MDEP-NEXT:  [[BLOCK1:.*:]]
; MDEP-NEXT:    br i1 [[C]], label %[[BLOCK2:.*]], label %[[BLOCK3:.*]]
; MDEP:       [[BLOCK2]]:
; MDEP-NEXT:    [[PRE_PRE:%.*]] = load i32, ptr [[P]], align 4, !range [[RNG0:![0-9]+]], !invariant.group [[META1:![0-9]+]]
; MDEP-NEXT:    br label %[[BLOCK4:.*]]
; MDEP:       [[BLOCK3]]:
; MDEP-NEXT:    store i32 0, ptr [[P]], align 4
; MDEP-NEXT:    br label %[[BLOCK4]]
; MDEP:       [[BLOCK4]]:
; MDEP-NEXT:    [[PRE:%.*]] = phi i32 [ 0, %[[BLOCK3]] ], [ [[PRE_PRE]], %[[BLOCK2]] ]
; MDEP-NEXT:    ret i32 [[PRE]]
;
; MSSA-LABEL: define i32 @test1(
; MSSA-SAME: ptr [[P:%.*]], i1 [[C:%.*]]) {
; MSSA-NEXT:  [[BLOCK1:.*:]]
; MSSA-NEXT:    br i1 [[C]], label %[[BLOCK2:.*]], label %[[BLOCK3:.*]]
; MSSA:       [[BLOCK2]]:
; MSSA-NEXT:    br label %[[BLOCK4:.*]]
; MSSA:       [[BLOCK3]]:
; MSSA-NEXT:    store i32 0, ptr [[P]], align 4
; MSSA-NEXT:    br label %[[BLOCK4]]
; MSSA:       [[BLOCK4]]:
; MSSA-NEXT:    [[PRE:%.*]] = load i32, ptr [[P]], align 4, !range [[RNG0:![0-9]+]], !invariant.group [[META1:![0-9]+]]
; MSSA-NEXT:    ret i32 [[PRE]]
;
block1:
  br i1 %C, label %block2, label %block3

block2:
  br label %block4

block3:
  store i32 0, ptr %p
  br label %block4

block4:
  %PRE = load i32, ptr %p, !range !0, !invariant.group !1
  ret i32 %PRE
}

define float @nofpclass(ptr %p, i1 %C) {
; MDEP-LABEL: define float @nofpclass(
; MDEP-SAME: ptr [[P:%.*]], i1 [[C:%.*]]) {
; MDEP-NEXT:  [[BLOCK1:.*:]]
; MDEP-NEXT:    br i1 [[C]], label %[[BLOCK2:.*]], label %[[BLOCK3:.*]]
; MDEP:       [[BLOCK2]]:
; MDEP-NEXT:    [[PRE_PRE:%.*]] = load float, ptr [[P]], align 4, !nofpclass [[META2:![0-9]+]]
; MDEP-NEXT:    br label %[[BLOCK4:.*]]
; MDEP:       [[BLOCK3]]:
; MDEP-NEXT:    store float 0.000000e+00, ptr [[P]], align 4
; MDEP-NEXT:    br label %[[BLOCK4]]
; MDEP:       [[BLOCK4]]:
; MDEP-NEXT:    [[PRE:%.*]] = phi float [ 0.000000e+00, %[[BLOCK3]] ], [ [[PRE_PRE]], %[[BLOCK2]] ]
; MDEP-NEXT:    ret float [[PRE]]
;
; MSSA-LABEL: define float @nofpclass(
; MSSA-SAME: ptr [[P:%.*]], i1 [[C:%.*]]) {
; MSSA-NEXT:  [[BLOCK1:.*:]]
; MSSA-NEXT:    br i1 [[C]], label %[[BLOCK2:.*]], label %[[BLOCK3:.*]]
; MSSA:       [[BLOCK2]]:
; MSSA-NEXT:    br label %[[BLOCK4:.*]]
; MSSA:       [[BLOCK3]]:
; MSSA-NEXT:    store float 0.000000e+00, ptr [[P]], align 4
; MSSA-NEXT:    br label %[[BLOCK4]]
; MSSA:       [[BLOCK4]]:
; MSSA-NEXT:    [[PRE:%.*]] = load float, ptr [[P]], align 4, !nofpclass [[META2:![0-9]+]]
; MSSA-NEXT:    ret float [[PRE]]
;
block1:
  br i1 %C, label %block2, label %block3

block2:
  br label %block4

block3:
  store float 0.0, ptr %p
  br label %block4

block4:
  %PRE = load float, ptr %p, !nofpclass !{i32 3}
  ret float %PRE
}


!0 = !{i32 40, i32 100}
!1 = !{!"magic ptr"}
;.
; MDEP: [[RNG0]] = !{i32 40, i32 100}
; MDEP: [[META1]] = !{!"magic ptr"}
; MDEP: [[META2]] = !{i32 3}
;.
; MSSA: [[RNG0]] = !{i32 40, i32 100}
; MSSA: [[META1]] = !{!"magic ptr"}
; MSSA: [[META2]] = !{i32 3}
;.
;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
; CHECK: {{.*}}