llvm-6502/test/Transforms/MemCpyOpt/form-memset.ll
David Blaikie 5a70dd1d82 [opaque pointer type] Add textual IR support for explicit type parameter to gep operator
Similar to gep (r230786) and load (r230794) changes.

Similar migration script can be used to update test cases, which
successfully migrated all of LLVM and Polly, but about 4 test cases
needed manually changes in Clang.

(this script will read the contents of stdin and massage it into stdout
- wrap it in the 'apply.sh' script shown in previous commits + xargs to
apply it over a large set of test cases)

import fileinput
import sys
import re

rep = re.compile(r"(getelementptr(?:\s+inbounds)?\s*\()((<\d*\s+x\s+)?([^@]*?)(|\s*addrspace\(\d+\))\s*\*(?(3)>)\s*)(?=$|%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|zeroinitializer|<|\[\[[a-zA-Z]|\{\{)", re.MULTILINE | re.DOTALL)

def conv(match):
  line = match.group(1)
  line += match.group(4)
  line += ", "
  line += match.group(2)
  return line

line = sys.stdin.read()
off = 0
for match in re.finditer(rep, line):
  sys.stdout.write(line[off:match.start()])
  sys.stdout.write(conv(match))
  off = match.end()
sys.stdout.write(line[off:])

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232184 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-13 18:20:45 +00:00

302 lines
15 KiB
LLVM

; RUN: opt < %s -memcpyopt -S | FileCheck %s
; All the stores in this example should be merged into a single memset.
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
target triple = "i386-apple-darwin8"
define void @test1(i8 signext %c) nounwind {
entry:
%x = alloca [19 x i8] ; <[19 x i8]*> [#uses=20]
%tmp = getelementptr [19 x i8], [19 x i8]* %x, i32 0, i32 0 ; <i8*> [#uses=1]
store i8 %c, i8* %tmp, align 1
%tmp5 = getelementptr [19 x i8], [19 x i8]* %x, i32 0, i32 1 ; <i8*> [#uses=1]
store i8 %c, i8* %tmp5, align 1
%tmp9 = getelementptr [19 x i8], [19 x i8]* %x, i32 0, i32 2 ; <i8*> [#uses=1]
store i8 %c, i8* %tmp9, align 1
%tmp13 = getelementptr [19 x i8], [19 x i8]* %x, i32 0, i32 3 ; <i8*> [#uses=1]
store i8 %c, i8* %tmp13, align 1
%tmp17 = getelementptr [19 x i8], [19 x i8]* %x, i32 0, i32 4 ; <i8*> [#uses=1]
store i8 %c, i8* %tmp17, align 1
%tmp21 = getelementptr [19 x i8], [19 x i8]* %x, i32 0, i32 5 ; <i8*> [#uses=1]
store i8 %c, i8* %tmp21, align 1
%tmp25 = getelementptr [19 x i8], [19 x i8]* %x, i32 0, i32 6 ; <i8*> [#uses=1]
store i8 %c, i8* %tmp25, align 1
%tmp29 = getelementptr [19 x i8], [19 x i8]* %x, i32 0, i32 7 ; <i8*> [#uses=1]
store i8 %c, i8* %tmp29, align 1
%tmp33 = getelementptr [19 x i8], [19 x i8]* %x, i32 0, i32 8 ; <i8*> [#uses=1]
store i8 %c, i8* %tmp33, align 1
%tmp37 = getelementptr [19 x i8], [19 x i8]* %x, i32 0, i32 9 ; <i8*> [#uses=1]
store i8 %c, i8* %tmp37, align 1
%tmp41 = getelementptr [19 x i8], [19 x i8]* %x, i32 0, i32 10 ; <i8*> [#uses=1]
store i8 %c, i8* %tmp41, align 1
%tmp45 = getelementptr [19 x i8], [19 x i8]* %x, i32 0, i32 11 ; <i8*> [#uses=1]
store i8 %c, i8* %tmp45, align 1
%tmp49 = getelementptr [19 x i8], [19 x i8]* %x, i32 0, i32 12 ; <i8*> [#uses=1]
store i8 %c, i8* %tmp49, align 1
%tmp53 = getelementptr [19 x i8], [19 x i8]* %x, i32 0, i32 13 ; <i8*> [#uses=1]
store i8 %c, i8* %tmp53, align 1
%tmp57 = getelementptr [19 x i8], [19 x i8]* %x, i32 0, i32 14 ; <i8*> [#uses=1]
store i8 %c, i8* %tmp57, align 1
%tmp61 = getelementptr [19 x i8], [19 x i8]* %x, i32 0, i32 15 ; <i8*> [#uses=1]
store i8 %c, i8* %tmp61, align 1
%tmp65 = getelementptr [19 x i8], [19 x i8]* %x, i32 0, i32 16 ; <i8*> [#uses=1]
store i8 %c, i8* %tmp65, align 1
%tmp69 = getelementptr [19 x i8], [19 x i8]* %x, i32 0, i32 17 ; <i8*> [#uses=1]
store i8 %c, i8* %tmp69, align 1
%tmp73 = getelementptr [19 x i8], [19 x i8]* %x, i32 0, i32 18 ; <i8*> [#uses=1]
store i8 %c, i8* %tmp73, align 1
%tmp76 = call i32 (...)* @bar( [19 x i8]* %x ) nounwind
ret void
; CHECK-LABEL: @test1(
; CHECK-NOT: store
; CHECK: call void @llvm.memset.p0i8.i64
; CHECK-NOT: store
; CHECK: ret
}
declare i32 @bar(...)
%struct.MV = type { i16, i16 }
define void @test2() nounwind {
entry:
%ref_idx = alloca [8 x i8] ; <[8 x i8]*> [#uses=8]
%left_mvd = alloca [8 x %struct.MV] ; <[8 x %struct.MV]*> [#uses=17]
%up_mvd = alloca [8 x %struct.MV] ; <[8 x %struct.MV]*> [#uses=17]
%tmp20 = getelementptr [8 x i8], [8 x i8]* %ref_idx, i32 0, i32 7 ; <i8*> [#uses=1]
store i8 -1, i8* %tmp20, align 1
%tmp23 = getelementptr [8 x i8], [8 x i8]* %ref_idx, i32 0, i32 6 ; <i8*> [#uses=1]
store i8 -1, i8* %tmp23, align 1
%tmp26 = getelementptr [8 x i8], [8 x i8]* %ref_idx, i32 0, i32 5 ; <i8*> [#uses=1]
store i8 -1, i8* %tmp26, align 1
%tmp29 = getelementptr [8 x i8], [8 x i8]* %ref_idx, i32 0, i32 4 ; <i8*> [#uses=1]
store i8 -1, i8* %tmp29, align 1
%tmp32 = getelementptr [8 x i8], [8 x i8]* %ref_idx, i32 0, i32 3 ; <i8*> [#uses=1]
store i8 -1, i8* %tmp32, align 1
%tmp35 = getelementptr [8 x i8], [8 x i8]* %ref_idx, i32 0, i32 2 ; <i8*> [#uses=1]
store i8 -1, i8* %tmp35, align 1
%tmp38 = getelementptr [8 x i8], [8 x i8]* %ref_idx, i32 0, i32 1 ; <i8*> [#uses=1]
store i8 -1, i8* %tmp38, align 1
%tmp41 = getelementptr [8 x i8], [8 x i8]* %ref_idx, i32 0, i32 0 ; <i8*> [#uses=2]
store i8 -1, i8* %tmp41, align 1
%tmp43 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %up_mvd, i32 0, i32 7, i32 0 ; <i16*> [#uses=1]
store i16 0, i16* %tmp43, align 2
%tmp46 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %up_mvd, i32 0, i32 7, i32 1 ; <i16*> [#uses=1]
store i16 0, i16* %tmp46, align 2
%tmp57 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %up_mvd, i32 0, i32 6, i32 0 ; <i16*> [#uses=1]
store i16 0, i16* %tmp57, align 2
%tmp60 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %up_mvd, i32 0, i32 6, i32 1 ; <i16*> [#uses=1]
store i16 0, i16* %tmp60, align 2
%tmp71 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %up_mvd, i32 0, i32 5, i32 0 ; <i16*> [#uses=1]
store i16 0, i16* %tmp71, align 2
%tmp74 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %up_mvd, i32 0, i32 5, i32 1 ; <i16*> [#uses=1]
store i16 0, i16* %tmp74, align 2
%tmp85 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %up_mvd, i32 0, i32 4, i32 0 ; <i16*> [#uses=1]
store i16 0, i16* %tmp85, align 2
%tmp88 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %up_mvd, i32 0, i32 4, i32 1 ; <i16*> [#uses=1]
store i16 0, i16* %tmp88, align 2
%tmp99 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %up_mvd, i32 0, i32 3, i32 0 ; <i16*> [#uses=1]
store i16 0, i16* %tmp99, align 2
%tmp102 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %up_mvd, i32 0, i32 3, i32 1 ; <i16*> [#uses=1]
store i16 0, i16* %tmp102, align 2
%tmp113 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %up_mvd, i32 0, i32 2, i32 0 ; <i16*> [#uses=1]
store i16 0, i16* %tmp113, align 2
%tmp116 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %up_mvd, i32 0, i32 2, i32 1 ; <i16*> [#uses=1]
store i16 0, i16* %tmp116, align 2
%tmp127 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %up_mvd, i32 0, i32 1, i32 0 ; <i16*> [#uses=1]
store i16 0, i16* %tmp127, align 2
%tmp130 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %up_mvd, i32 0, i32 1, i32 1 ; <i16*> [#uses=1]
store i16 0, i16* %tmp130, align 2
%tmp141 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %up_mvd, i32 0, i32 0, i32 0 ; <i16*> [#uses=1]
store i16 0, i16* %tmp141, align 8
%tmp144 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %up_mvd, i32 0, i32 0, i32 1 ; <i16*> [#uses=1]
store i16 0, i16* %tmp144, align 2
%tmp148 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %left_mvd, i32 0, i32 7, i32 0 ; <i16*> [#uses=1]
store i16 0, i16* %tmp148, align 2
%tmp151 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %left_mvd, i32 0, i32 7, i32 1 ; <i16*> [#uses=1]
store i16 0, i16* %tmp151, align 2
%tmp162 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %left_mvd, i32 0, i32 6, i32 0 ; <i16*> [#uses=1]
store i16 0, i16* %tmp162, align 2
%tmp165 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %left_mvd, i32 0, i32 6, i32 1 ; <i16*> [#uses=1]
store i16 0, i16* %tmp165, align 2
%tmp176 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %left_mvd, i32 0, i32 5, i32 0 ; <i16*> [#uses=1]
store i16 0, i16* %tmp176, align 2
%tmp179 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %left_mvd, i32 0, i32 5, i32 1 ; <i16*> [#uses=1]
store i16 0, i16* %tmp179, align 2
%tmp190 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %left_mvd, i32 0, i32 4, i32 0 ; <i16*> [#uses=1]
store i16 0, i16* %tmp190, align 2
%tmp193 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %left_mvd, i32 0, i32 4, i32 1 ; <i16*> [#uses=1]
store i16 0, i16* %tmp193, align 2
%tmp204 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %left_mvd, i32 0, i32 3, i32 0 ; <i16*> [#uses=1]
store i16 0, i16* %tmp204, align 2
%tmp207 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %left_mvd, i32 0, i32 3, i32 1 ; <i16*> [#uses=1]
store i16 0, i16* %tmp207, align 2
%tmp218 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %left_mvd, i32 0, i32 2, i32 0 ; <i16*> [#uses=1]
store i16 0, i16* %tmp218, align 2
%tmp221 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %left_mvd, i32 0, i32 2, i32 1 ; <i16*> [#uses=1]
store i16 0, i16* %tmp221, align 2
%tmp232 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %left_mvd, i32 0, i32 1, i32 0 ; <i16*> [#uses=1]
store i16 0, i16* %tmp232, align 2
%tmp235 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %left_mvd, i32 0, i32 1, i32 1 ; <i16*> [#uses=1]
store i16 0, i16* %tmp235, align 2
%tmp246 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %left_mvd, i32 0, i32 0, i32 0 ; <i16*> [#uses=1]
store i16 0, i16* %tmp246, align 8
%tmp249 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %left_mvd, i32 0, i32 0, i32 1 ; <i16*> [#uses=1]
store i16 0, i16* %tmp249, align 2
%up_mvd252 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %up_mvd, i32 0, i32 0 ; <%struct.MV*> [#uses=1]
%left_mvd253 = getelementptr [8 x %struct.MV], [8 x %struct.MV]* %left_mvd, i32 0, i32 0 ; <%struct.MV*> [#uses=1]
call void @foo( %struct.MV* %up_mvd252, %struct.MV* %left_mvd253, i8* %tmp41 ) nounwind
ret void
; CHECK-LABEL: @test2(
; CHECK-NOT: store
; CHECK: call void @llvm.memset.p0i8.i64(i8* %tmp41, i8 -1, i64 8, i32 1, i1 false)
; CHECK-NOT: store
; CHECK: call void @llvm.memset.p0i8.i64(i8* %0, i8 0, i64 32, i32 8, i1 false)
; CHECK-NOT: store
; CHECK: call void @llvm.memset.p0i8.i64(i8* %1, i8 0, i64 32, i32 8, i1 false)
; CHECK-NOT: store
; CHECK: ret
}
declare void @foo(%struct.MV*, %struct.MV*, i8*)
; Store followed by memset.
define void @test3(i32* nocapture %P) nounwind ssp {
entry:
%arrayidx = getelementptr inbounds i32, i32* %P, i64 1
store i32 0, i32* %arrayidx, align 4
%add.ptr = getelementptr inbounds i32, i32* %P, i64 2
%0 = bitcast i32* %add.ptr to i8*
tail call void @llvm.memset.p0i8.i64(i8* %0, i8 0, i64 11, i32 1, i1 false)
ret void
; CHECK-LABEL: @test3(
; CHECK-NOT: store
; CHECK: call void @llvm.memset.p0i8.i64(i8* %1, i8 0, i64 15, i32 4, i1 false)
}
; store followed by memset, different offset scenario
define void @test4(i32* nocapture %P) nounwind ssp {
entry:
store i32 0, i32* %P, align 4
%add.ptr = getelementptr inbounds i32, i32* %P, i64 1
%0 = bitcast i32* %add.ptr to i8*
tail call void @llvm.memset.p0i8.i64(i8* %0, i8 0, i64 11, i32 1, i1 false)
ret void
; CHECK-LABEL: @test4(
; CHECK-NOT: store
; CHECK: call void @llvm.memset.p0i8.i64(i8* %1, i8 0, i64 15, i32 4, i1 false)
}
declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) nounwind
; Memset followed by store.
define void @test5(i32* nocapture %P) nounwind ssp {
entry:
%add.ptr = getelementptr inbounds i32, i32* %P, i64 2
%0 = bitcast i32* %add.ptr to i8*
tail call void @llvm.memset.p0i8.i64(i8* %0, i8 0, i64 11, i32 1, i1 false)
%arrayidx = getelementptr inbounds i32, i32* %P, i64 1
store i32 0, i32* %arrayidx, align 4
ret void
; CHECK-LABEL: @test5(
; CHECK-NOT: store
; CHECK: call void @llvm.memset.p0i8.i64(i8* %1, i8 0, i64 15, i32 4, i1 false)
}
;; Memset followed by memset.
define void @test6(i32* nocapture %P) nounwind ssp {
entry:
%0 = bitcast i32* %P to i8*
tail call void @llvm.memset.p0i8.i64(i8* %0, i8 0, i64 12, i32 1, i1 false)
%add.ptr = getelementptr inbounds i32, i32* %P, i64 3
%1 = bitcast i32* %add.ptr to i8*
tail call void @llvm.memset.p0i8.i64(i8* %1, i8 0, i64 12, i32 1, i1 false)
ret void
; CHECK-LABEL: @test6(
; CHECK: call void @llvm.memset.p0i8.i64(i8* %2, i8 0, i64 24, i32 1, i1 false)
}
; More aggressive heuristic
; rdar://9892684
define void @test7(i32* nocapture %c) nounwind optsize {
store i32 -1, i32* %c, align 4
%1 = getelementptr inbounds i32, i32* %c, i32 1
store i32 -1, i32* %1, align 4
%2 = getelementptr inbounds i32, i32* %c, i32 2
store i32 -1, i32* %2, align 4
%3 = getelementptr inbounds i32, i32* %c, i32 3
store i32 -1, i32* %3, align 4
%4 = getelementptr inbounds i32, i32* %c, i32 4
store i32 -1, i32* %4, align 4
; CHECK-LABEL: @test7(
; CHECK: call void @llvm.memset.p0i8.i64(i8* %5, i8 -1, i64 20, i32 4, i1 false)
ret void
}
%struct.test8 = type { [4 x i32] }
define void @test8() {
entry:
%memtmp = alloca %struct.test8, align 16
%0 = bitcast %struct.test8* %memtmp to <4 x i32>*
store <4 x i32> <i32 -1, i32 -1, i32 -1, i32 -1>, <4 x i32>* %0, align 16
ret void
; CHECK-LABEL: @test8(
; CHECK: store <4 x i32> <i32 -1, i32 -1, i32 -1, i32 -1>, <4 x i32>* %0, align 16
}
@test9buf = internal unnamed_addr global [16 x i64] zeroinitializer, align 16
define void @test9() nounwind {
store i8 -1, i8* bitcast ([16 x i64]* @test9buf to i8*), align 16
store i8 -1, i8* getelementptr (i8, i8* bitcast ([16 x i64]* @test9buf to i8*), i64 1), align 1
store i8 -1, i8* getelementptr (i8, i8* bitcast ([16 x i64]* @test9buf to i8*), i64 2), align 2
store i8 -1, i8* getelementptr (i8, i8* bitcast ([16 x i64]* @test9buf to i8*), i64 3), align 1
store i8 -1, i8* getelementptr (i8, i8* bitcast ([16 x i64]* @test9buf to i8*), i64 4), align 4
store i8 -1, i8* getelementptr (i8, i8* bitcast ([16 x i64]* @test9buf to i8*), i64 5), align 1
store i8 -1, i8* getelementptr (i8, i8* bitcast ([16 x i64]* @test9buf to i8*), i64 6), align 2
store i8 -1, i8* getelementptr (i8, i8* bitcast ([16 x i64]* @test9buf to i8*), i64 7), align 1
store i8 -1, i8* bitcast (i64* getelementptr inbounds ([16 x i64], [16 x i64]* @test9buf, i64 0, i64 1) to i8*), align 8
store i8 -1, i8* getelementptr (i8, i8* bitcast ([16 x i64]* @test9buf to i8*), i64 9), align 1
store i8 -1, i8* getelementptr (i8, i8* bitcast ([16 x i64]* @test9buf to i8*), i64 10), align 2
store i8 -1, i8* getelementptr (i8, i8* bitcast ([16 x i64]* @test9buf to i8*), i64 11), align 1
store i8 -1, i8* getelementptr (i8, i8* bitcast ([16 x i64]* @test9buf to i8*), i64 12), align 4
store i8 -1, i8* getelementptr (i8, i8* bitcast ([16 x i64]* @test9buf to i8*), i64 13), align 1
store i8 -1, i8* getelementptr (i8, i8* bitcast ([16 x i64]* @test9buf to i8*), i64 14), align 2
store i8 -1, i8* getelementptr (i8, i8* bitcast ([16 x i64]* @test9buf to i8*), i64 15), align 1
ret void
; CHECK-LABEL: @test9(
; CHECK: call void @llvm.memset.p0i8.i64(i8* bitcast ([16 x i64]* @test9buf to i8*), i8 -1, i64 16, i32 16, i1 false)
}
; PR19092
define void @test10(i8* nocapture %P) nounwind {
tail call void @llvm.memset.p0i8.i64(i8* %P, i8 0, i64 42, i32 1, i1 false)
tail call void @llvm.memset.p0i8.i64(i8* %P, i8 0, i64 23, i32 1, i1 false)
ret void
; CHECK-LABEL: @test10(
; CHECK-NOT: memset
; CHECK: call void @llvm.memset.p0i8.i64(i8* %P, i8 0, i64 42, i32 1, i1 false)
; CHECK-NOT: memset
; CHECK: ret void
}
; Memset followed by odd store.
define void @test11(i32* nocapture %P) nounwind ssp {
entry:
%add.ptr = getelementptr inbounds i32, i32* %P, i64 3
%0 = bitcast i32* %add.ptr to i8*
tail call void @llvm.memset.p0i8.i64(i8* %0, i8 1, i64 11, i32 1, i1 false)
%arrayidx = getelementptr inbounds i32, i32* %P, i64 0
%arrayidx.cast = bitcast i32* %arrayidx to i96*
store i96 310698676526526814092329217, i96* %arrayidx.cast, align 4
ret void
; CHECK-LABEL: @test11(
; CHECK-NOT: store
; CHECK: call void @llvm.memset.p0i8.i64(i8* %1, i8 1, i64 23, i32 4, i1 false)
}