blob: e0f6a87fd2e4e3a6fd82ca373a349e0dba8e1aba [file] [log] [blame]
; RUN: llc -march=hexagon -mcpu=hexagonv5 < %s | FileCheck %s
; We shouldn't generate a hardware loop in this case because the initial
; value may be zero, which means the endloop instruction will not decrement
; the loop counter, and the loop will execute only once.
; CHECK-NOT: loop0
define void @foo(i32 %count, i32 %v) #0 {
br label %do.body
%count.addr.0 = phi i32 [ %count, %entry ], [ %dec, %do.body ]
tail call void asm sideeffect "nop", ""() #1
%dec = add i32 %count.addr.0, -1
%cmp = icmp eq i32 %dec, 0
br i1 %cmp, label %do.end, label %do.body
ret void