llvm/test/Transforms/LoopIdiom/RISCV/memset-pattern.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals
; RUN: opt -passes=loop-idiom -mtriple=riscv64 < %s -S | FileCheck %s
; RUN: opt -passes=loop-idiom -mtriple=riscv64 -loop-idiom-force-memset-pattern-intrinsic < %s -S \
; RUN:   | FileCheck -check-prefix=CHECK-INTRIN %s

define dso_local void @double_memset(ptr nocapture %p) {
; CHECK-LABEL: @double_memset(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
; CHECK:       for.cond.cleanup:
; CHECK-NEXT:    ret void
; CHECK:       for.body:
; CHECK-NEXT:    [[I_07:%.*]] = phi i64 [ [[INC:%.*]], [[FOR_BODY]] ], [ 0, [[ENTRY:%.*]] ]
; CHECK-NEXT:    [[PTR1:%.*]] = getelementptr inbounds double, ptr [[P:%.*]], i64 [[I_07]]
; CHECK-NEXT:    store double 3.141590e+00, ptr [[PTR1]], align 1
; CHECK-NEXT:    [[INC]] = add nuw nsw i64 [[I_07]], 1
; CHECK-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], 16
; CHECK-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_COND_CLEANUP:%.*]], label [[FOR_BODY]]
;
; CHECK-INTRIN-LABEL: @double_memset(
; CHECK-INTRIN-NEXT:  entry:
; CHECK-INTRIN-NEXT:    call void @llvm.experimental.memset.pattern.p0.f64.i64(ptr align 1 [[P:%.*]], double 3.141590e+00, i64 16, i1 false)
; CHECK-INTRIN-NEXT:    br label [[FOR_BODY:%.*]]
; CHECK-INTRIN:       for.cond.cleanup:
; CHECK-INTRIN-NEXT:    ret void
; CHECK-INTRIN:       for.body:
; CHECK-INTRIN-NEXT:    [[I_07:%.*]] = phi i64 [ [[INC:%.*]], [[FOR_BODY]] ], [ 0, [[ENTRY:%.*]] ]
; CHECK-INTRIN-NEXT:    [[PTR1:%.*]] = getelementptr inbounds double, ptr [[P]], i64 [[I_07]]
; CHECK-INTRIN-NEXT:    [[INC]] = add nuw nsw i64 [[I_07]], 1
; CHECK-INTRIN-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], 16
; CHECK-INTRIN-NEXT:    br i1 [[EXITCOND_NOT]], label [[FOR_COND_CLEANUP:%.*]], label [[FOR_BODY]]
;
entry:
  br label %for.body

for.cond.cleanup:
  ret void

for.body:
  %i.07 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
  %ptr1 = getelementptr inbounds double, ptr %p, i64 %i.07
  store double 3.14159e+00, ptr %ptr1, align 1
  %inc = add nuw nsw i64 %i.07, 1
  %exitcond.not = icmp eq i64 %inc, 16
  br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
}
;.
; CHECK-INTRIN: attributes #[[ATTR0:[0-9]+]] = { nocallback nofree nounwind willreturn memory(argmem: write) }
;.