llvm/test/CodeGen/RISCV/branch_zero.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=riscv64 -verify-machineinstrs < %s \
; RUN:   | FileCheck %s

define void @foo(i16 %finder_idx) {
; CHECK-LABEL: foo:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:  .LBB0_1: # %for.body
; CHECK-NEXT:    # =>This Inner Loop Header: Depth=1
; CHECK-NEXT:    slli a0, a0, 48
; CHECK-NEXT:    bltz a0, .LBB0_4
; CHECK-NEXT:  # %bb.2: # %while.cond.preheader.i
; CHECK-NEXT:    # in Loop: Header=BB0_1 Depth=1
; CHECK-NEXT:    li a0, 0
; CHECK-NEXT:    bnez zero, .LBB0_1
; CHECK-NEXT:  # %bb.3: # %while.body
; CHECK-NEXT:  .LBB0_4: # %while.cond1.preheader.i
entry:
  br label %for.body

for.body:
  %info = phi i16 [ 0, %if.then ], [ %finder_idx, %entry ]
  %cmp.i = icmp sgt i16 %info, -1
  %tobool = icmp eq ptr poison, null
  br i1 %cmp.i, label %while.cond.preheader.i, label %while.cond1.preheader.i

while.cond1.preheader.i:
  unreachable

while.cond.preheader.i:
  br label %exit

exit:
  br i1 %tobool, label %exit1, label %while.body

while.body:
  unreachable

exit1:
  br label %if.then

if.then:
  br label %for.body
}

define void @bar(i16 %finder_idx) {
; CHECK-LABEL: bar:
; CHECK:       # %bb.0: # %entry
; CHECK-NEXT:  .LBB1_1: # %for.body
; CHECK-NEXT:    # =>This Inner Loop Header: Depth=1
; CHECK-NEXT:    slli a0, a0, 48
; CHECK-NEXT:    bgez a0, .LBB1_4
; CHECK-NEXT:  # %bb.2: # %while.cond.preheader.i
; CHECK-NEXT:    # in Loop: Header=BB1_1 Depth=1
; CHECK-NEXT:    li a0, 0
; CHECK-NEXT:    bnez zero, .LBB1_1
; CHECK-NEXT:  # %bb.3: # %while.body
; CHECK-NEXT:  .LBB1_4: # %while.cond1.preheader.i
entry:
  br label %for.body

for.body:
  %info = phi i16 [ 0, %if.then ], [ %finder_idx, %entry ]
  %cmp.i = icmp sle i16 %info, -1
  %tobool = icmp eq ptr poison, null
  br i1 %cmp.i, label %while.cond.preheader.i, label %while.cond1.preheader.i

while.cond1.preheader.i:
  unreachable

while.cond.preheader.i:
  br label %exit

exit:
  br i1 %tobool, label %exit1, label %while.body

while.body:
  unreachable

exit1:
  br label %if.then

if.then:
  br label %for.body
}