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llvm-6502/test/Transforms/InstCombine/memset_chk-1.ll

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instcombine: Add more test cases for __memset_chk simplification git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164796 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-27 21:21:18 +00:00
; Test lib call simplification of __memset_chk calls with various values
; for dstlen and len.
;
; RUN: opt < %s -instcombine -S | FileCheck %s
; rdar://7719085
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"
%struct.T = type { [100 x i32], [100 x i32], [1024 x i8] }
@t = common global %struct.T zeroinitializer
; Check cases where dstlen >= len.
define void @test_simplify1() {
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. This update was done with the following bash script: find test/Transforms -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc" $NAME; then TEMP=`mktemp -t temp` cp $NAME $TEMP sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \ while read FUNC; do sed -i '' "s/;\(.*\)\([A-Za-z0-9_]*\):\( *\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP done mv $TEMP $NAME fi done git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186268 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-14 01:42:54 +00:00
; CHECK-LABEL: @test_simplify1(
instcombine: Add more test cases for __memset_chk simplification git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164796 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-27 21:21:18 +00:00
%dst = bitcast %struct.T* @t to i8*
; CHECK-NEXT: call void @llvm.memset.p0i8.i64
call i8* @__memset_chk(i8* %dst, i32 0, i64 1824, i64 1824)
ret void
}
define void @test_simplify2() {
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. This update was done with the following bash script: find test/Transforms -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc" $NAME; then TEMP=`mktemp -t temp` cp $NAME $TEMP sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \ while read FUNC; do sed -i '' "s/;\(.*\)\([A-Za-z0-9_]*\):\( *\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP done mv $TEMP $NAME fi done git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186268 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-14 01:42:54 +00:00
; CHECK-LABEL: @test_simplify2(
instcombine: Add more test cases for __memset_chk simplification git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164796 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-27 21:21:18 +00:00
%dst = bitcast %struct.T* @t to i8*
; CHECK-NEXT: call void @llvm.memset.p0i8.i64
call i8* @__memset_chk(i8* %dst, i32 0, i64 1824, i64 3648)
ret void
}
define void @test_simplify3() {
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. This update was done with the following bash script: find test/Transforms -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc" $NAME; then TEMP=`mktemp -t temp` cp $NAME $TEMP sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \ while read FUNC; do sed -i '' "s/;\(.*\)\([A-Za-z0-9_]*\):\( *\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP done mv $TEMP $NAME fi done git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186268 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-14 01:42:54 +00:00
; CHECK-LABEL: @test_simplify3(
instcombine: Add more test cases for __memset_chk simplification git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164796 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-27 21:21:18 +00:00
%dst = bitcast %struct.T* @t to i8*
; CHECK-NEXT: call void @llvm.memset.p0i8.i64
call i8* @__memset_chk(i8* %dst, i32 0, i64 1824, i64 -1)
ret void
}
; Check cases where dstlen < len.
define void @test_no_simplify1() {
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. This update was done with the following bash script: find test/Transforms -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc" $NAME; then TEMP=`mktemp -t temp` cp $NAME $TEMP sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \ while read FUNC; do sed -i '' "s/;\(.*\)\([A-Za-z0-9_]*\):\( *\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP done mv $TEMP $NAME fi done git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186268 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-14 01:42:54 +00:00
; CHECK-LABEL: @test_no_simplify1(
instcombine: Add more test cases for __memset_chk simplification git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164796 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-27 21:21:18 +00:00
%dst = bitcast %struct.T* @t to i8*
; CHECK-NEXT: call i8* @__memset_chk
call i8* @__memset_chk(i8* %dst, i32 0, i64 1824, i64 400)
ret void
}
define void @test_no_simplify2() {
Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. This update was done with the following bash script: find test/Transforms -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc" $NAME; then TEMP=`mktemp -t temp` cp $NAME $TEMP sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \ while read FUNC; do sed -i '' "s/;\(.*\)\([A-Za-z0-9_]*\):\( *\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP done mv $TEMP $NAME fi done git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186268 91177308-0d34-0410-b5e6-96231b3b80d8
2013-07-14 01:42:54 +00:00
; CHECK-LABEL: @test_no_simplify2(
instcombine: Add more test cases for __memset_chk simplification git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164796 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-27 21:21:18 +00:00
%dst = bitcast %struct.T* @t to i8*
; CHECK-NEXT: call i8* @__memset_chk
call i8* @__memset_chk(i8* %dst, i32 0, i64 1824, i64 0)
ret void
}
declare i8* @__memset_chk(i8*, i32, i64, i64)
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