llvm-6502/test/Transforms/IRCE/single-access-no-preloop.ll
David Blaikie 7c9c6ed761 [opaque pointer type] Add textual IR support for explicit type parameter to load instruction
Essentially the same as the GEP change in r230786.

A similar migration script can be used to update test cases, though a few more
test case improvements/changes were required this time around: (r229269-r229278)

import fileinput
import sys
import re

pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)")

for line in sys.stdin:
  sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line))

Reviewers: rafael, dexonsmith, grosser

Differential Revision: http://reviews.llvm.org/D7649

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230794 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 21:17:42 +00:00

117 lines
4.3 KiB
LLVM

; RUN: opt -irce -S < %s | FileCheck %s
define void @single_access_no_preloop_no_offset(i32 *%arr, i32 *%a_len_ptr, i32 %n) {
entry:
%len = load i32, i32* %a_len_ptr, !range !0
%first.itr.check = icmp sgt i32 %n, 0
br i1 %first.itr.check, label %loop, label %exit
loop:
%idx = phi i32 [ 0, %entry ] , [ %idx.next, %in.bounds ]
%idx.next = add i32 %idx, 1
%abc = icmp slt i32 %idx, %len
br i1 %abc, label %in.bounds, label %out.of.bounds, !prof !1
in.bounds:
%addr = getelementptr i32, i32* %arr, i32 %idx
store i32 0, i32* %addr
%next = icmp slt i32 %idx.next, %n
br i1 %next, label %loop, label %exit
out.of.bounds:
ret void
exit:
ret void
}
; CHECK-LABEL: single_access_no_preloop
; CHECK-LABEL: loop:
; CHECK: br i1 true, label %in.bounds, label %out.of.bounds
; CHECK-LABEL: main.exit.selector:
; CHECK-NEXT: [[continue:%[^ ]+]] = icmp slt i32 %idx.next, %n
; CHECK-NEXT: br i1 [[continue]], label %main.pseudo.exit, label %exit.loopexit
; CHECK-LABEL: main.pseudo.exit:
; CHECK-NEXT: %idx.copy = phi i32 [ 0, %loop.preheader ], [ %idx.next, %main.exit.selector ]
; CHECK-NEXT: %indvar.end = phi i32 [ 0, %loop.preheader ], [ %idx.next, %main.exit.selector ]
; CHECK-NEXT: br label %postloop
; CHECK-LABEL: postloop:
; CHECK-NEXT: br label %loop.postloop
; CHECK-LABEL: loop.postloop:
; CHECK-NEXT: %idx.postloop = phi i32 [ %idx.next.postloop, %in.bounds.postloop ], [ %idx.copy, %postloop ]
; CHECK-NEXT: %idx.next.postloop = add i32 %idx.postloop, 1
; CHECK-NEXT: %abc.postloop = icmp slt i32 %idx.postloop, %len
; CHECK-NEXT: br i1 %abc.postloop, label %in.bounds.postloop, label %out.of.bounds
; CHECK-LABEL: in.bounds.postloop:
; CHECK-NEXT: %addr.postloop = getelementptr i32, i32* %arr, i32 %idx.postloop
; CHECK-NEXT: store i32 0, i32* %addr.postloop
; CHECK-NEXT: %next.postloop = icmp slt i32 %idx.next.postloop, %n
; CHECK-NEXT: br i1 %next.postloop, label %loop.postloop, label %exit.loopexit
define void @single_access_no_preloop_with_offset(i32 *%arr, i32 *%a_len_ptr, i32 %n) {
entry:
%len = load i32, i32* %a_len_ptr, !range !0
%first.itr.check = icmp sgt i32 %n, 0
br i1 %first.itr.check, label %loop, label %exit
loop:
%idx = phi i32 [ 0, %entry ] , [ %idx.next, %in.bounds ]
%idx.next = add i32 %idx, 1
%idx.for.abc = add i32 %idx, 4
%abc = icmp slt i32 %idx.for.abc, %len
br i1 %abc, label %in.bounds, label %out.of.bounds, !prof !1
in.bounds:
%addr = getelementptr i32, i32* %arr, i32 %idx.for.abc
store i32 0, i32* %addr
%next = icmp slt i32 %idx.next, %n
br i1 %next, label %loop, label %exit
out.of.bounds:
ret void
exit:
ret void
}
; CHECK-LABEL: single_access_no_preloop_with_offset
; CHECK-LABEL: loop.preheader:
; CHECK: [[not_n:[^ ]+]] = sub i32 -1, %n
; CHECK: [[not_safe_range_end:[^ ]+]] = sub i32 3, %len
; CHECK: [[not_exit_main_loop_at_hiclamp_cmp:[^ ]+]] = icmp sgt i32 [[not_n]], [[not_safe_range_end]]
; CHECK: [[not_exit_main_loop_at_hiclamp:[^ ]+]] = select i1 [[not_exit_main_loop_at_hiclamp_cmp]], i32 [[not_n]], i32 [[not_safe_range_end]]
; CHECK: [[exit_main_loop_at_hiclamp:[^ ]+]] = sub i32 -1, [[not_exit_main_loop_at_hiclamp]]
; CHECK: [[exit_main_loop_at_loclamp_cmp:[^ ]+]] = icmp sgt i32 [[exit_main_loop_at_hiclamp]], 0
; CHECK: [[exit_main_loop_at_loclamp:[^ ]+]] = select i1 [[exit_main_loop_at_loclamp_cmp]], i32 [[exit_main_loop_at_hiclamp]], i32 0
; CHECK: [[enter_main_loop:[^ ]+]] = icmp slt i32 0, [[exit_main_loop_at_loclamp]]
; CHECK: br i1 [[enter_main_loop]], label %loop, label %main.pseudo.exit
; CHECK-LABEL: loop:
; CHECK: br i1 true, label %in.bounds, label %out.of.bounds
; CHECK-LABEL: in.bounds:
; CHECK: [[continue_main_loop:[^ ]+]] = icmp slt i32 %idx.next, [[exit_main_loop_at_loclamp]]
; CHECK: br i1 [[continue_main_loop]], label %loop, label %main.exit.selector
; CHECK-LABEL: main.pseudo.exit:
; CHECK: %idx.copy = phi i32 [ 0, %loop.preheader ], [ %idx.next, %main.exit.selector ]
; CHECK: br label %postloop
; CHECK-LABEL: loop.postloop:
; CHECK: %idx.postloop = phi i32 [ %idx.next.postloop, %in.bounds.postloop ], [ %idx.copy, %postloop ]
; CHECK-LABEL: in.bounds.postloop:
; CHECK: %next.postloop = icmp slt i32 %idx.next.postloop, %n
; CHECK: br i1 %next.postloop, label %loop.postloop, label %exit.loopexit
!0 = !{i32 0, i32 2147483647}
!1 = !{!"branch_weights", i32 64, i32 4}