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39f4e8d9cc
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
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186268 91177308-0d34-0410-b5e6-96231b3b80d8
38 lines
1.1 KiB
LLVM
38 lines
1.1 KiB
LLVM
; Test that the strncat libcall simplifier works correctly.
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;
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; RUN: opt < %s -instcombine -S | FileCheck %s
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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"
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@hello = constant [6 x i8] c"hello\00"
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@null = constant [1 x i8] zeroinitializer
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@null_hello = constant [7 x i8] c"\00hello\00"
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declare i8* @strncat(i8*, i8*, i32)
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declare i32 @puts(i8*)
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define i32 @main() {
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; CHECK-LABEL: @main(
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; CHECK-NOT: call i8* @strncat
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; CHECK: call i32 @puts
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%target = alloca [1024 x i8]
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%arg1 = getelementptr [1024 x i8]* %target, i32 0, i32 0
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store i8 0, i8* %arg1
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; rslt1 = strncat(target, "hello\00")
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%arg2 = getelementptr [6 x i8]* @hello, i32 0, i32 0
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%rslt1 = call i8* @strncat(i8* %arg1, i8* %arg2, i32 6)
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; rslt2 = strncat(rslt1, "\00")
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%arg3 = getelementptr [1 x i8]* @null, i32 0, i32 0
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%rslt2 = call i8* @strncat(i8* %rslt1, i8* %arg3, i32 42)
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; rslt3 = strncat(rslt2, "\00hello\00")
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%arg4 = getelementptr [7 x i8]* @null_hello, i32 0, i32 0
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%rslt3 = call i8* @strncat(i8* %rslt2, i8* %arg4, i32 42)
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call i32 @puts(i8* %rslt3)
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ret i32 0
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}
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