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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
171 lines
5.3 KiB
LLVM
171 lines
5.3 KiB
LLVM
; Test extensions of f64 to f128.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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; Check register extension.
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define void @f1(fp128 *%dst, double %val) {
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; CHECK-LABEL: f1:
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; CHECK: lxdbr %f0, %f0
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; CHECK: std %f0, 0(%r2)
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; CHECK: std %f2, 8(%r2)
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; CHECK: br %r14
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%res = fpext double %val to fp128
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store fp128 %res, fp128 *%dst
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ret void
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}
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; Check the low end of the LXDB range.
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define void @f2(fp128 *%dst, double *%ptr) {
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; CHECK-LABEL: f2:
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; CHECK: lxdb %f0, 0(%r3)
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; CHECK: std %f0, 0(%r2)
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; CHECK: std %f2, 8(%r2)
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; CHECK: br %r14
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%val = load double *%ptr
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%res = fpext double %val to fp128
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store fp128 %res, fp128 *%dst
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ret void
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}
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; Check the high end of the aligned LXDB range.
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define void @f3(fp128 *%dst, double *%base) {
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; CHECK-LABEL: f3:
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; CHECK: lxdb %f0, 4088(%r3)
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; CHECK: std %f0, 0(%r2)
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; CHECK: std %f2, 8(%r2)
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; CHECK: br %r14
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%ptr = getelementptr double, double *%base, i64 511
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%val = load double *%ptr
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%res = fpext double %val to fp128
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store fp128 %res, fp128 *%dst
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ret void
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}
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; Check the next doubleword up, which needs separate address logic.
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; Other sequences besides this one would be OK.
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define void @f4(fp128 *%dst, double *%base) {
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; CHECK-LABEL: f4:
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; CHECK: aghi %r3, 4096
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; CHECK: lxdb %f0, 0(%r3)
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; CHECK: std %f0, 0(%r2)
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; CHECK: std %f2, 8(%r2)
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; CHECK: br %r14
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%ptr = getelementptr double, double *%base, i64 512
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%val = load double *%ptr
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%res = fpext double %val to fp128
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store fp128 %res, fp128 *%dst
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ret void
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}
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; Check negative displacements, which also need separate address logic.
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define void @f5(fp128 *%dst, double *%base) {
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; CHECK-LABEL: f5:
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; CHECK: aghi %r3, -8
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; CHECK: lxdb %f0, 0(%r3)
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; CHECK: std %f0, 0(%r2)
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; CHECK: std %f2, 8(%r2)
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; CHECK: br %r14
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%ptr = getelementptr double, double *%base, i64 -1
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%val = load double *%ptr
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%res = fpext double %val to fp128
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store fp128 %res, fp128 *%dst
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ret void
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}
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; Check that LXDB allows indices.
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define void @f6(fp128 *%dst, double *%base, i64 %index) {
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; CHECK-LABEL: f6:
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; CHECK: sllg %r1, %r4, 3
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; CHECK: lxdb %f0, 800(%r1,%r3)
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; CHECK: std %f0, 0(%r2)
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; CHECK: std %f2, 8(%r2)
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; CHECK: br %r14
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%ptr1 = getelementptr double, double *%base, i64 %index
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%ptr2 = getelementptr double, double *%ptr1, i64 100
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%val = load double *%ptr2
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%res = fpext double %val to fp128
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store fp128 %res, fp128 *%dst
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ret void
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}
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; Test a case where we spill the source of at least one LXDBR. We want
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; to use LXDB if possible.
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define void @f7(fp128 *%ptr1, double *%ptr2) {
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; CHECK-LABEL: f7:
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; CHECK: lxdb {{%f[0-9]+}}, 160(%r15)
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; CHECK: br %r14
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%val0 = load volatile double *%ptr2
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%val1 = load volatile double *%ptr2
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%val2 = load volatile double *%ptr2
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%val3 = load volatile double *%ptr2
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%val4 = load volatile double *%ptr2
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%val5 = load volatile double *%ptr2
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%val6 = load volatile double *%ptr2
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%val7 = load volatile double *%ptr2
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%val8 = load volatile double *%ptr2
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%val9 = load volatile double *%ptr2
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%val10 = load volatile double *%ptr2
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%val11 = load volatile double *%ptr2
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%val12 = load volatile double *%ptr2
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%val13 = load volatile double *%ptr2
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%val14 = load volatile double *%ptr2
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%val15 = load volatile double *%ptr2
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%val16 = load volatile double *%ptr2
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%ext0 = fpext double %val0 to fp128
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%ext1 = fpext double %val1 to fp128
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%ext2 = fpext double %val2 to fp128
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%ext3 = fpext double %val3 to fp128
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%ext4 = fpext double %val4 to fp128
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%ext5 = fpext double %val5 to fp128
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%ext6 = fpext double %val6 to fp128
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%ext7 = fpext double %val7 to fp128
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%ext8 = fpext double %val8 to fp128
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%ext9 = fpext double %val9 to fp128
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%ext10 = fpext double %val10 to fp128
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%ext11 = fpext double %val11 to fp128
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%ext12 = fpext double %val12 to fp128
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%ext13 = fpext double %val13 to fp128
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%ext14 = fpext double %val14 to fp128
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%ext15 = fpext double %val15 to fp128
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%ext16 = fpext double %val16 to fp128
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store volatile double %val0, double *%ptr2
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store volatile double %val1, double *%ptr2
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store volatile double %val2, double *%ptr2
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store volatile double %val3, double *%ptr2
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store volatile double %val4, double *%ptr2
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store volatile double %val5, double *%ptr2
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store volatile double %val6, double *%ptr2
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store volatile double %val7, double *%ptr2
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store volatile double %val8, double *%ptr2
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store volatile double %val9, double *%ptr2
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store volatile double %val10, double *%ptr2
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store volatile double %val11, double *%ptr2
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store volatile double %val12, double *%ptr2
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store volatile double %val13, double *%ptr2
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store volatile double %val14, double *%ptr2
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store volatile double %val15, double *%ptr2
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store volatile double %val16, double *%ptr2
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store volatile fp128 %ext0, fp128 *%ptr1
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store volatile fp128 %ext1, fp128 *%ptr1
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store volatile fp128 %ext2, fp128 *%ptr1
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store volatile fp128 %ext3, fp128 *%ptr1
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store volatile fp128 %ext4, fp128 *%ptr1
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store volatile fp128 %ext5, fp128 *%ptr1
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store volatile fp128 %ext6, fp128 *%ptr1
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store volatile fp128 %ext7, fp128 *%ptr1
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store volatile fp128 %ext8, fp128 *%ptr1
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store volatile fp128 %ext9, fp128 *%ptr1
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store volatile fp128 %ext10, fp128 *%ptr1
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store volatile fp128 %ext11, fp128 *%ptr1
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store volatile fp128 %ext12, fp128 *%ptr1
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store volatile fp128 %ext13, fp128 *%ptr1
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store volatile fp128 %ext14, fp128 *%ptr1
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store volatile fp128 %ext15, fp128 *%ptr1
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store volatile fp128 %ext16, fp128 *%ptr1
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ret void
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}
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