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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
235 lines
7.3 KiB
LLVM
235 lines
7.3 KiB
LLVM
; RUN: llc < %s -march=arm64 -verify-machineinstrs | FileCheck %s
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; RUN: llc < %s -march=arm64 -aarch64-unscaled-mem-op=true\
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; RUN: -verify-machineinstrs | FileCheck -check-prefix=LDUR_CHK %s
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; CHECK: ldp_int
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; CHECK: ldp
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define i32 @ldp_int(i32* %p) nounwind {
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%tmp = load i32* %p, align 4
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%add.ptr = getelementptr inbounds i32, i32* %p, i64 1
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%tmp1 = load i32* %add.ptr, align 4
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%add = add nsw i32 %tmp1, %tmp
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ret i32 %add
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}
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; CHECK: ldp_sext_int
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; CHECK: ldpsw
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define i64 @ldp_sext_int(i32* %p) nounwind {
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%tmp = load i32* %p, align 4
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%add.ptr = getelementptr inbounds i32, i32* %p, i64 1
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%tmp1 = load i32* %add.ptr, align 4
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%sexttmp = sext i32 %tmp to i64
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%sexttmp1 = sext i32 %tmp1 to i64
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%add = add nsw i64 %sexttmp1, %sexttmp
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ret i64 %add
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}
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; CHECK: ldp_long
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; CHECK: ldp
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define i64 @ldp_long(i64* %p) nounwind {
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%tmp = load i64* %p, align 8
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%add.ptr = getelementptr inbounds i64, i64* %p, i64 1
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%tmp1 = load i64* %add.ptr, align 8
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%add = add nsw i64 %tmp1, %tmp
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ret i64 %add
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}
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; CHECK: ldp_float
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; CHECK: ldp
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define float @ldp_float(float* %p) nounwind {
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%tmp = load float* %p, align 4
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%add.ptr = getelementptr inbounds float, float* %p, i64 1
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%tmp1 = load float* %add.ptr, align 4
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%add = fadd float %tmp, %tmp1
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ret float %add
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}
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; CHECK: ldp_double
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; CHECK: ldp
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define double @ldp_double(double* %p) nounwind {
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%tmp = load double* %p, align 8
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%add.ptr = getelementptr inbounds double, double* %p, i64 1
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%tmp1 = load double* %add.ptr, align 8
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%add = fadd double %tmp, %tmp1
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ret double %add
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}
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; Test the load/store optimizer---combine ldurs into a ldp, if appropriate
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define i32 @ldur_int(i32* %a) nounwind {
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; LDUR_CHK: ldur_int
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; LDUR_CHK: ldp [[DST1:w[0-9]+]], [[DST2:w[0-9]+]], [x0, #-8]
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; LDUR_CHK-NEXT: add w{{[0-9]+}}, [[DST2]], [[DST1]]
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; LDUR_CHK-NEXT: ret
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%p1 = getelementptr inbounds i32, i32* %a, i32 -1
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%tmp1 = load i32* %p1, align 2
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%p2 = getelementptr inbounds i32, i32* %a, i32 -2
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%tmp2 = load i32* %p2, align 2
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%tmp3 = add i32 %tmp1, %tmp2
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ret i32 %tmp3
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}
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define i64 @ldur_sext_int(i32* %a) nounwind {
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; LDUR_CHK: ldur_sext_int
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; LDUR_CHK: ldpsw [[DST1:x[0-9]+]], [[DST2:x[0-9]+]], [x0, #-8]
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; LDUR_CHK-NEXT: add x{{[0-9]+}}, [[DST2]], [[DST1]]
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; LDUR_CHK-NEXT: ret
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%p1 = getelementptr inbounds i32, i32* %a, i32 -1
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%tmp1 = load i32* %p1, align 2
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%p2 = getelementptr inbounds i32, i32* %a, i32 -2
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%tmp2 = load i32* %p2, align 2
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%sexttmp1 = sext i32 %tmp1 to i64
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%sexttmp2 = sext i32 %tmp2 to i64
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%tmp3 = add i64 %sexttmp1, %sexttmp2
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ret i64 %tmp3
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}
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define i64 @ldur_long(i64* %a) nounwind ssp {
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; LDUR_CHK: ldur_long
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; LDUR_CHK: ldp [[DST1:x[0-9]+]], [[DST2:x[0-9]+]], [x0, #-16]
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; LDUR_CHK-NEXT: add x{{[0-9]+}}, [[DST2]], [[DST1]]
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; LDUR_CHK-NEXT: ret
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%p1 = getelementptr inbounds i64, i64* %a, i64 -1
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%tmp1 = load i64* %p1, align 2
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%p2 = getelementptr inbounds i64, i64* %a, i64 -2
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%tmp2 = load i64* %p2, align 2
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%tmp3 = add i64 %tmp1, %tmp2
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ret i64 %tmp3
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}
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define float @ldur_float(float* %a) {
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; LDUR_CHK: ldur_float
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; LDUR_CHK: ldp [[DST1:s[0-9]+]], [[DST2:s[0-9]+]], [x0, #-8]
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; LDUR_CHK-NEXT: add s{{[0-9]+}}, [[DST2]], [[DST1]]
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; LDUR_CHK-NEXT: ret
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%p1 = getelementptr inbounds float, float* %a, i64 -1
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%tmp1 = load float* %p1, align 2
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%p2 = getelementptr inbounds float, float* %a, i64 -2
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%tmp2 = load float* %p2, align 2
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%tmp3 = fadd float %tmp1, %tmp2
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ret float %tmp3
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}
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define double @ldur_double(double* %a) {
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; LDUR_CHK: ldur_double
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; LDUR_CHK: ldp [[DST1:d[0-9]+]], [[DST2:d[0-9]+]], [x0, #-16]
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; LDUR_CHK-NEXT: add d{{[0-9]+}}, [[DST2]], [[DST1]]
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; LDUR_CHK-NEXT: ret
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%p1 = getelementptr inbounds double, double* %a, i64 -1
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%tmp1 = load double* %p1, align 2
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%p2 = getelementptr inbounds double, double* %a, i64 -2
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%tmp2 = load double* %p2, align 2
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%tmp3 = fadd double %tmp1, %tmp2
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ret double %tmp3
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}
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; Now check some boundary conditions
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define i64 @pairUpBarelyIn(i64* %a) nounwind ssp {
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; LDUR_CHK: pairUpBarelyIn
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; LDUR_CHK-NOT: ldur
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; LDUR_CHK: ldp [[DST1:x[0-9]+]], [[DST2:x[0-9]+]], [x0, #-256]
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; LDUR_CHK-NEXT: add x{{[0-9]+}}, [[DST2]], [[DST1]]
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; LDUR_CHK-NEXT: ret
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%p1 = getelementptr inbounds i64, i64* %a, i64 -31
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%tmp1 = load i64* %p1, align 2
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%p2 = getelementptr inbounds i64, i64* %a, i64 -32
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%tmp2 = load i64* %p2, align 2
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%tmp3 = add i64 %tmp1, %tmp2
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ret i64 %tmp3
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}
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define i64 @pairUpBarelyInSext(i32* %a) nounwind ssp {
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; LDUR_CHK: pairUpBarelyInSext
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; LDUR_CHK-NOT: ldur
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; LDUR_CHK: ldpsw [[DST1:x[0-9]+]], [[DST2:x[0-9]+]], [x0, #-256]
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; LDUR_CHK-NEXT: add x{{[0-9]+}}, [[DST2]], [[DST1]]
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; LDUR_CHK-NEXT: ret
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%p1 = getelementptr inbounds i32, i32* %a, i64 -63
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%tmp1 = load i32* %p1, align 2
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%p2 = getelementptr inbounds i32, i32* %a, i64 -64
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%tmp2 = load i32* %p2, align 2
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%sexttmp1 = sext i32 %tmp1 to i64
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%sexttmp2 = sext i32 %tmp2 to i64
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%tmp3 = add i64 %sexttmp1, %sexttmp2
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ret i64 %tmp3
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}
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define i64 @pairUpBarelyOut(i64* %a) nounwind ssp {
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; LDUR_CHK: pairUpBarelyOut
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; LDUR_CHK-NOT: ldp
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; Don't be fragile about which loads or manipulations of the base register
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; are used---just check that there isn't an ldp before the add
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; LDUR_CHK: add
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; LDUR_CHK-NEXT: ret
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%p1 = getelementptr inbounds i64, i64* %a, i64 -32
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%tmp1 = load i64* %p1, align 2
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%p2 = getelementptr inbounds i64, i64* %a, i64 -33
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%tmp2 = load i64* %p2, align 2
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%tmp3 = add i64 %tmp1, %tmp2
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ret i64 %tmp3
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}
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define i64 @pairUpBarelyOutSext(i32* %a) nounwind ssp {
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; LDUR_CHK: pairUpBarelyOutSext
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; LDUR_CHK-NOT: ldp
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; Don't be fragile about which loads or manipulations of the base register
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; are used---just check that there isn't an ldp before the add
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; LDUR_CHK: add
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; LDUR_CHK-NEXT: ret
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%p1 = getelementptr inbounds i32, i32* %a, i64 -64
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%tmp1 = load i32* %p1, align 2
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%p2 = getelementptr inbounds i32, i32* %a, i64 -65
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%tmp2 = load i32* %p2, align 2
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%sexttmp1 = sext i32 %tmp1 to i64
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%sexttmp2 = sext i32 %tmp2 to i64
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%tmp3 = add i64 %sexttmp1, %sexttmp2
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ret i64 %tmp3
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}
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define i64 @pairUpNotAligned(i64* %a) nounwind ssp {
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; LDUR_CHK: pairUpNotAligned
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; LDUR_CHK-NOT: ldp
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; LDUR_CHK: ldur
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; LDUR_CHK-NEXT: ldur
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; LDUR_CHK-NEXT: add
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; LDUR_CHK-NEXT: ret
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%p1 = getelementptr inbounds i64, i64* %a, i64 -18
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%bp1 = bitcast i64* %p1 to i8*
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%bp1p1 = getelementptr inbounds i8, i8* %bp1, i64 1
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%dp1 = bitcast i8* %bp1p1 to i64*
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%tmp1 = load i64* %dp1, align 1
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%p2 = getelementptr inbounds i64, i64* %a, i64 -17
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%bp2 = bitcast i64* %p2 to i8*
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%bp2p1 = getelementptr inbounds i8, i8* %bp2, i64 1
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%dp2 = bitcast i8* %bp2p1 to i64*
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%tmp2 = load i64* %dp2, align 1
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%tmp3 = add i64 %tmp1, %tmp2
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ret i64 %tmp3
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}
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define i64 @pairUpNotAlignedSext(i32* %a) nounwind ssp {
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; LDUR_CHK: pairUpNotAlignedSext
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; LDUR_CHK-NOT: ldp
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; LDUR_CHK: ldursw
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; LDUR_CHK-NEXT: ldursw
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; LDUR_CHK-NEXT: add
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; LDUR_CHK-NEXT: ret
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%p1 = getelementptr inbounds i32, i32* %a, i64 -18
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%bp1 = bitcast i32* %p1 to i8*
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%bp1p1 = getelementptr inbounds i8, i8* %bp1, i64 1
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%dp1 = bitcast i8* %bp1p1 to i32*
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%tmp1 = load i32* %dp1, align 1
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%p2 = getelementptr inbounds i32, i32* %a, i64 -17
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%bp2 = bitcast i32* %p2 to i8*
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%bp2p1 = getelementptr inbounds i8, i8* %bp2, i64 1
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%dp2 = bitcast i8* %bp2p1 to i32*
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%tmp2 = load i32* %dp2, align 1
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%sexttmp1 = sext i32 %tmp1 to i64
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%sexttmp2 = sext i32 %tmp2 to i64
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%tmp3 = add i64 %sexttmp1, %sexttmp2
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ret i64 %tmp3
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}
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