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198d8baafb
One of several parallel first steps to remove the target type of pointers,
replacing them with a single opaque pointer type.
This adds an explicit type parameter to the gep instruction so that when the
first parameter becomes an opaque pointer type, the type to gep through is
still available to the instructions.
* This doesn't modify gep operators, only instructions (operators will be
handled separately)
* Textual IR changes only. Bitcode (including upgrade) and changing the
in-memory representation will be in separate changes.
* geps of vectors are transformed as:
getelementptr <4 x float*> %x, ...
->getelementptr float, <4 x float*> %x, ...
Then, once the opaque pointer type is introduced, this will ultimately look
like:
getelementptr float, <4 x ptr> %x
with the unambiguous interpretation that it is a vector of pointers to float.
* address spaces remain on the pointer, not the type:
getelementptr float addrspace(1)* %x
->getelementptr float, float addrspace(1)* %x
Then, eventually:
getelementptr float, ptr addrspace(1) %x
Importantly, the massive amount of test case churn has been automated by
same crappy python code. I had to manually update a few test cases that
wouldn't fit the script's model (r228970,r229196,r229197,r229198). The
python script just massages stdin and writes the result to stdout, I
then wrapped that in a shell script to handle replacing files, then
using the usual find+xargs to migrate all the files.
update.py:
import fileinput
import sys
import re
ibrep = re.compile(r"(^.*?[^%\w]getelementptr inbounds )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")
normrep = re.compile( r"(^.*?[^%\w]getelementptr )(((?:<\d* x )?)(.*?)(| addrspace\(\d\)) *\*(|>)(?:$| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$))")
def conv(match, line):
if not match:
return line
line = match.groups()[0]
if len(match.groups()[5]) == 0:
line += match.groups()[2]
line += match.groups()[3]
line += ", "
line += match.groups()[1]
line += "\n"
return line
for line in sys.stdin:
if line.find("getelementptr ") == line.find("getelementptr inbounds"):
if line.find("getelementptr inbounds") != line.find("getelementptr inbounds ("):
line = conv(re.match(ibrep, line), line)
elif line.find("getelementptr ") != line.find("getelementptr ("):
line = conv(re.match(normrep, line), line)
sys.stdout.write(line)
apply.sh:
for name in "$@"
do
python3 `dirname "$0"`/update.py < "$name" > "$name.tmp" && mv "$name.tmp" "$name"
rm -f "$name.tmp"
done
The actual commands:
From llvm/src:
find test/ -name *.ll | xargs ./apply.sh
From llvm/src/tools/clang:
find test/ -name *.mm -o -name *.m -o -name *.cpp -o -name *.c | xargs -I '{}' ../../apply.sh "{}"
From llvm/src/tools/polly:
find test/ -name *.ll | xargs ./apply.sh
After that, check-all (with llvm, clang, clang-tools-extra, lld,
compiler-rt, and polly all checked out).
The extra 'rm' in the apply.sh script is due to a few files in clang's test
suite using interesting unicode stuff that my python script was throwing
exceptions on. None of those files needed to be migrated, so it seemed
sufficient to ignore those cases.
Reviewers: rafael, dexonsmith, grosser
Differential Revision: http://reviews.llvm.org/D7636
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230786 91177308-0d34-0410-b5e6-96231b3b80d8
118 lines
3.1 KiB
LLVM
118 lines
3.1 KiB
LLVM
; RUN: llc < %s -march=bpf | FileCheck %s
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@foo_printf.fmt = private unnamed_addr constant [9 x i8] c"hello \0A\00", align 1
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; Function Attrs: nounwind readnone uwtable
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define i32 @foo_int(i32 %a, i32 %b) #0 {
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%1 = add nsw i32 %b, %a
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ret i32 %1
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; CHECK-LABEL: foo_int:
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; CHECK: add r2, r1
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}
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; Function Attrs: nounwind readnone uwtable
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define signext i8 @foo_char(i8 signext %a, i8 signext %b) #0 {
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%1 = add i8 %b, %a
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ret i8 %1
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; CHECK-LABEL: foo_char:
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; CHECK: add r2, r1
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; CHECK: slli r2, 56
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; CHECK: srai r2, 56
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}
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; Function Attrs: nounwind readnone uwtable
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define i64 @foo_ll(i64 %a, i64 %b, i64 %c) #0 {
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%1 = add nsw i64 %b, %a
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%2 = sub i64 %1, %c
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ret i64 %2
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; CHECK-LABEL: foo_ll:
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; CHECK: add r2, r1
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; CHECK: sub r2, r3
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; CHECK: mov r0, r2
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}
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; Function Attrs: nounwind uwtable
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define void @foo_call2(i32 %a, i32 %b) #1 {
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%1 = trunc i32 %b to i8
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tail call void @foo_2arg(i8 signext %1, i32 %a) #3
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ret void
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; CHECK-LABEL: foo_call2:
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; CHECK: slli r2, 56
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; CHECK: srai r2, 56
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; CHECK: mov r1, r2
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}
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declare void @foo_2arg(i8 signext, i32) #2
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; Function Attrs: nounwind uwtable
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define i32 @foo_call5(i8 signext %a, i16 signext %b, i32 %c, i64 %d) #1 {
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%1 = tail call i32 @bar(i8 signext %a, i16 signext %b, i32 %c, i64 %d) #3
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ret i32 0
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; CHECK-LABEL: foo_call5:
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; CHECK: call bar
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}
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declare i32 @bar(i8 signext, i16 signext, i32, i64) #2
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; Function Attrs: nounwind readnone uwtable
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define signext i8 @foo_cmp(i8 signext %a, i8 signext %b) #0 {
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%1 = icmp slt i8 %a, %b
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%a.b = select i1 %1, i8 %a, i8 %b
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ret i8 %a.b
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; CHECK-LABEL: foo_cmp:
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; CHECK: jsgt r2, r1
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}
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; Function Attrs: nounwind readnone uwtable
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define i32 @foo_muldiv(i8 signext %a, i16 signext %b, i32 %c, i64 %d) #0 {
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%1 = icmp eq i8 %a, 0
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br i1 %1, label %5, label %2
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; <label>:2 ; preds = %0
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%3 = sext i16 %b to i32
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%4 = mul nsw i32 %3, %c
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br label %8
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; <label>:5 ; preds = %0
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%6 = trunc i64 %d to i32
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%7 = udiv i32 %6, %c
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br label %8
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; <label>:8 ; preds = %5, %2
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%.0 = phi i32 [ %4, %2 ], [ %7, %5 ]
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ret i32 %.0
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; CHECK-LABEL: foo_muldiv:
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; CHECK: mul r2, r3
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}
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; Function Attrs: nounwind uwtable
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define i32 @foo_optimized() #1 {
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%1 = tail call i32 @manyarg(i32 1, i32 2, i32 3, i32 4, i32 5) #3
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ret i32 %1
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; CHECK-LABEL: foo_optimized:
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; CHECK: mov r1, 1
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; CHECK: mov r2, 2
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; CHECK: mov r3, 3
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; CHECK: mov r4, 4
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; CHECK: mov r5, 5
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}
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declare i32 @manyarg(i32, i32, i32, i32, i32) #2
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; Function Attrs: nounwind uwtable
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define void @foo_printf() #1 {
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%fmt = alloca [9 x i8], align 1
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%1 = getelementptr inbounds [9 x i8], [9 x i8]* %fmt, i64 0, i64 0
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %1, i8* getelementptr inbounds ([9 x i8]* @foo_printf.fmt, i64 0, i64 0), i64 9, i32 1, i1 false)
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; CHECK-LABEL: foo_printf:
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; CHECK: ld_64 r1, 729618802566522216
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%2 = call i32 (i8*, ...)* @printf(i8* %1) #3
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ret void
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}
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; Function Attrs: nounwind
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declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) #3
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; Function Attrs: nounwind
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declare i32 @printf(i8* nocapture, ...) #4
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