test/Transforms/Sink/invariant-load.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=sink -S < %s | FileCheck %s

; Loads marked invariant can be sunk across critical edges

define <4 x float> @invariant_load(ptr %in, i32 %s) {
; CHECK-LABEL: @invariant_load(
; CHECK-NEXT:  main_body:
; CHECK-NEXT:    [[C:%.*]] = icmp eq i32 [[S:%.*]], 0
; CHECK-NEXT:    br i1 [[C]], label [[BLOCK:%.*]], label [[END:%.*]]
; CHECK:       block:
; CHECK-NEXT:    [[Z:%.*]] = add i32 [[S]], 1
; CHECK-NEXT:    br label [[END]]
; CHECK:       end:
; CHECK-NEXT:    [[V:%.*]] = load <4 x float>, ptr [[IN:%.*]], align 16, !invariant.load !0
; CHECK-NEXT:    ret <4 x float> [[V]]
;
main_body:
  %v = load <4 x float>, ptr %in, !invariant.load !0
  %c = icmp eq i32 %s, 0
  br i1 %c, label %block, label %end
block:
  %z = add i32 %s, 1
  br label %end
end:
  ret <4 x float> %v
}

!0 = !{}