mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-11-04 05:17:07 +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
52 lines
1.6 KiB
LLVM
52 lines
1.6 KiB
LLVM
; RUN: opt -O3 -S < %s | FileCheck %s
|
|
|
|
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
|
|
target triple = "x86_64-apple-macosx10.6.7"
|
|
|
|
declare i8* @malloc(i64)
|
|
declare void @free(i8*)
|
|
|
|
|
|
; PR2338
|
|
define void @test1() nounwind ssp {
|
|
%retval = alloca i32, align 4
|
|
%i = alloca i8*, align 8
|
|
%call = call i8* @malloc(i64 1)
|
|
store i8* %call, i8** %i, align 8
|
|
%tmp = load i8*, i8** %i, align 8
|
|
store i8 1, i8* %tmp
|
|
%tmp1 = load i8*, i8** %i, align 8
|
|
call void @free(i8* %tmp1)
|
|
ret void
|
|
|
|
; CHECK-LABEL: @test1(
|
|
; CHECK-NEXT: ret void
|
|
}
|
|
|
|
; This function exposes a phase ordering problem when InstCombine is
|
|
; turning %add into a bitmask, making it difficult to spot a 0 return value.
|
|
;
|
|
; It it also important that %add is expressed as a multiple of %div so scalar
|
|
; evolution can recognize it.
|
|
define i32 @test2(i32 %a, i32* %p) nounwind uwtable ssp {
|
|
entry:
|
|
%div = udiv i32 %a, 4
|
|
%arrayidx = getelementptr inbounds i32, i32* %p, i64 0
|
|
store i32 %div, i32* %arrayidx, align 4
|
|
%add = add i32 %div, %div
|
|
%arrayidx1 = getelementptr inbounds i32, i32* %p, i64 1
|
|
store i32 %add, i32* %arrayidx1, align 4
|
|
%arrayidx2 = getelementptr inbounds i32, i32* %p, i64 1
|
|
%0 = load i32, i32* %arrayidx2, align 4
|
|
%arrayidx3 = getelementptr inbounds i32, i32* %p, i64 0
|
|
%1 = load i32, i32* %arrayidx3, align 4
|
|
%mul = mul i32 2, %1
|
|
%sub = sub i32 %0, %mul
|
|
ret i32 %sub
|
|
|
|
; CHECK-LABEL: @test2(
|
|
; CHECK: %div = lshr i32 %a, 2
|
|
; CHECK: %add = shl nuw nsw i32 %div, 1
|
|
; CHECK: ret i32 0
|
|
}
|