mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-10-31 08:16:47 +00:00
7c9c6ed761
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
69 lines
1.9 KiB
LLVM
69 lines
1.9 KiB
LLVM
; RUN: opt < %s -loop-unswitch -verify-loop-info -S < %s 2>&1 | FileCheck %s
|
|
|
|
define i32 @test(i32* %A, i1 %C) {
|
|
entry:
|
|
br label %no_exit
|
|
no_exit: ; preds = %no_exit.backedge, %entry
|
|
%i.0.0 = phi i32 [ 0, %entry ], [ %i.0.0.be, %no_exit.backedge ] ; <i32> [#uses=3]
|
|
%gep.upgrd.1 = zext i32 %i.0.0 to i64 ; <i64> [#uses=1]
|
|
%tmp.7 = getelementptr i32, i32* %A, i64 %gep.upgrd.1 ; <i32*> [#uses=4]
|
|
%tmp.13 = load i32, i32* %tmp.7 ; <i32> [#uses=2]
|
|
%tmp.14 = add i32 %tmp.13, 1 ; <i32> [#uses=1]
|
|
store i32 %tmp.14, i32* %tmp.7
|
|
br i1 %C, label %then, label %endif
|
|
then: ; preds = %no_exit
|
|
%tmp.29 = load i32, i32* %tmp.7 ; <i32> [#uses=1]
|
|
%tmp.30 = add i32 %tmp.29, 2 ; <i32> [#uses=1]
|
|
store i32 %tmp.30, i32* %tmp.7
|
|
%inc9 = add i32 %i.0.0, 1 ; <i32> [#uses=2]
|
|
%tmp.112 = icmp ult i32 %inc9, 100000 ; <i1> [#uses=1]
|
|
br i1 %tmp.112, label %no_exit.backedge, label %return
|
|
no_exit.backedge: ; preds = %endif, %then
|
|
%i.0.0.be = phi i32 [ %inc9, %then ], [ %inc, %endif ] ; <i32> [#uses=1]
|
|
br label %no_exit
|
|
endif: ; preds = %no_exit
|
|
%inc = add i32 %i.0.0, 1 ; <i32> [#uses=2]
|
|
%tmp.1 = icmp ult i32 %inc, 100000 ; <i1> [#uses=1]
|
|
br i1 %tmp.1, label %no_exit.backedge, label %return
|
|
return: ; preds = %endif, %then
|
|
ret i32 %tmp.13
|
|
}
|
|
|
|
; This simple test would normally unswitch, but should be inhibited by the presence of
|
|
; the noduplicate call.
|
|
|
|
; CHECK-LABEL: @test2(
|
|
define i32 @test2(i32* %var) {
|
|
%mem = alloca i32
|
|
store i32 2, i32* %mem
|
|
%c = load i32, i32* %mem
|
|
|
|
br label %loop_begin
|
|
|
|
loop_begin:
|
|
|
|
%var_val = load i32, i32* %var
|
|
|
|
switch i32 %c, label %default [
|
|
i32 1, label %inc
|
|
i32 2, label %dec
|
|
]
|
|
|
|
inc:
|
|
call void @incf() noreturn nounwind
|
|
br label %loop_begin
|
|
dec:
|
|
; CHECK: call void @decf()
|
|
; CHECK-NOT: call void @decf()
|
|
call void @decf() noreturn nounwind noduplicate
|
|
br label %loop_begin
|
|
default:
|
|
br label %loop_exit
|
|
loop_exit:
|
|
ret i32 0
|
|
; CHECK: }
|
|
}
|
|
|
|
declare void @incf() noreturn
|
|
declare void @decf() noreturn
|