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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
234 lines
7.2 KiB
LLVM
234 lines
7.2 KiB
LLVM
; Test multiplication of two f64s, producing an f128 result.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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declare double @foo()
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; Check register multiplication. "mxdbr %f0, %f2" is not valid from LLVM's
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; point of view, because %f2 is the low register of the FP128 %f0. Pass the
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; multiplier in %f4 instead.
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define void @f1(double %f1, double %dummy, double %f2, fp128 *%dst) {
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; CHECK-LABEL: f1:
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; CHECK: mxdbr %f0, %f4
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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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%f1x = fpext double %f1 to fp128
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%f2x = fpext double %f2 to fp128
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%res = fmul fp128 %f1x, %f2x
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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 MXDB range.
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define void @f2(double %f1, double *%ptr, fp128 *%dst) {
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; CHECK-LABEL: f2:
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; CHECK: mxdb %f0, 0(%r2)
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; CHECK: std %f0, 0(%r3)
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; CHECK: std %f2, 8(%r3)
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; CHECK: br %r14
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%f2 = load double *%ptr
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%f1x = fpext double %f1 to fp128
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%f2x = fpext double %f2 to fp128
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%res = fmul fp128 %f1x, %f2x
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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 MXDB range.
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define void @f3(double %f1, double *%base, fp128 *%dst) {
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; CHECK-LABEL: f3:
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; CHECK: mxdb %f0, 4088(%r2)
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; CHECK: std %f0, 0(%r3)
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; CHECK: std %f2, 8(%r3)
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; CHECK: br %r14
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%ptr = getelementptr double, double *%base, i64 511
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%f2 = load double *%ptr
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%f1x = fpext double %f1 to fp128
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%f2x = fpext double %f2 to fp128
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%res = fmul fp128 %f1x, %f2x
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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(double %f1, double *%base, fp128 *%dst) {
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; CHECK-LABEL: f4:
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; CHECK: aghi %r2, 4096
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; CHECK: mxdb %f0, 0(%r2)
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; CHECK: std %f0, 0(%r3)
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; CHECK: std %f2, 8(%r3)
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; CHECK: br %r14
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%ptr = getelementptr double, double *%base, i64 512
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%f2 = load double *%ptr
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%f1x = fpext double %f1 to fp128
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%f2x = fpext double %f2 to fp128
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%res = fmul fp128 %f1x, %f2x
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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(double %f1, double *%base, fp128 *%dst) {
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; CHECK-LABEL: f5:
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; CHECK: aghi %r2, -8
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; CHECK: mxdb %f0, 0(%r2)
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; CHECK: std %f0, 0(%r3)
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; CHECK: std %f2, 8(%r3)
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; CHECK: br %r14
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%ptr = getelementptr double, double *%base, i64 -1
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%f2 = load double *%ptr
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%f1x = fpext double %f1 to fp128
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%f2x = fpext double %f2 to fp128
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%res = fmul fp128 %f1x, %f2x
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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 MXDB allows indices.
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define void @f6(double %f1, double *%base, i64 %index, fp128 *%dst) {
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; CHECK-LABEL: f6:
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; CHECK: sllg %r1, %r3, 3
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; CHECK: mxdb %f0, 800(%r1,%r2)
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; CHECK: std %f0, 0(%r4)
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; CHECK: std %f2, 8(%r4)
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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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%f2 = load double *%ptr2
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%f1x = fpext double %f1 to fp128
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%f2x = fpext double %f2 to fp128
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%res = fmul fp128 %f1x, %f2x
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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 multiplications of spilled values can use MXDB rather than MXDBR.
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define double @f7(double *%ptr0) {
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; CHECK-LABEL: f7:
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; CHECK: brasl %r14, foo@PLT
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; CHECK: mxdb %f0, 160(%r15)
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; CHECK: br %r14
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%ptr1 = getelementptr double, double *%ptr0, i64 2
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%ptr2 = getelementptr double, double *%ptr0, i64 4
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%ptr3 = getelementptr double, double *%ptr0, i64 6
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%ptr4 = getelementptr double, double *%ptr0, i64 8
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%ptr5 = getelementptr double, double *%ptr0, i64 10
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%ptr6 = getelementptr double, double *%ptr0, i64 12
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%ptr7 = getelementptr double, double *%ptr0, i64 14
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%ptr8 = getelementptr double, double *%ptr0, i64 16
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%ptr9 = getelementptr double, double *%ptr0, i64 18
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%ptr10 = getelementptr double, double *%ptr0, i64 20
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%val0 = load double *%ptr0
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%val1 = load double *%ptr1
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%val2 = load double *%ptr2
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%val3 = load double *%ptr3
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%val4 = load double *%ptr4
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%val5 = load double *%ptr5
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%val6 = load double *%ptr6
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%val7 = load double *%ptr7
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%val8 = load double *%ptr8
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%val9 = load double *%ptr9
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%val10 = load double *%ptr10
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%frob0 = fadd double %val0, %val0
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%frob1 = fadd double %val1, %val1
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%frob2 = fadd double %val2, %val2
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%frob3 = fadd double %val3, %val3
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%frob4 = fadd double %val4, %val4
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%frob5 = fadd double %val5, %val5
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%frob6 = fadd double %val6, %val6
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%frob7 = fadd double %val7, %val7
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%frob8 = fadd double %val8, %val8
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%frob9 = fadd double %val9, %val9
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%frob10 = fadd double %val9, %val10
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store double %frob0, double *%ptr0
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store double %frob1, double *%ptr1
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store double %frob2, double *%ptr2
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store double %frob3, double *%ptr3
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store double %frob4, double *%ptr4
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store double %frob5, double *%ptr5
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store double %frob6, double *%ptr6
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store double %frob7, double *%ptr7
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store double %frob8, double *%ptr8
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store double %frob9, double *%ptr9
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store double %frob10, double *%ptr10
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%ret = call double @foo()
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%accext0 = fpext double %ret to fp128
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%ext0 = fpext double %frob0 to fp128
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%mul0 = fmul fp128 %accext0, %ext0
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%const0 = fpext double 1.01 to fp128
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%extra0 = fmul fp128 %mul0, %const0
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%trunc0 = fptrunc fp128 %extra0 to double
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%accext1 = fpext double %trunc0 to fp128
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%ext1 = fpext double %frob1 to fp128
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%mul1 = fmul fp128 %accext1, %ext1
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%const1 = fpext double 1.11 to fp128
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%extra1 = fmul fp128 %mul1, %const1
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%trunc1 = fptrunc fp128 %extra1 to double
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%accext2 = fpext double %trunc1 to fp128
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%ext2 = fpext double %frob2 to fp128
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%mul2 = fmul fp128 %accext2, %ext2
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%const2 = fpext double 1.21 to fp128
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%extra2 = fmul fp128 %mul2, %const2
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%trunc2 = fptrunc fp128 %extra2 to double
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%accext3 = fpext double %trunc2 to fp128
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%ext3 = fpext double %frob3 to fp128
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%mul3 = fmul fp128 %accext3, %ext3
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%const3 = fpext double 1.31 to fp128
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%extra3 = fmul fp128 %mul3, %const3
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%trunc3 = fptrunc fp128 %extra3 to double
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%accext4 = fpext double %trunc3 to fp128
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%ext4 = fpext double %frob4 to fp128
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%mul4 = fmul fp128 %accext4, %ext4
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%const4 = fpext double 1.41 to fp128
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%extra4 = fmul fp128 %mul4, %const4
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%trunc4 = fptrunc fp128 %extra4 to double
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%accext5 = fpext double %trunc4 to fp128
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%ext5 = fpext double %frob5 to fp128
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%mul5 = fmul fp128 %accext5, %ext5
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%const5 = fpext double 1.51 to fp128
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%extra5 = fmul fp128 %mul5, %const5
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%trunc5 = fptrunc fp128 %extra5 to double
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%accext6 = fpext double %trunc5 to fp128
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%ext6 = fpext double %frob6 to fp128
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%mul6 = fmul fp128 %accext6, %ext6
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%const6 = fpext double 1.61 to fp128
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%extra6 = fmul fp128 %mul6, %const6
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%trunc6 = fptrunc fp128 %extra6 to double
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%accext7 = fpext double %trunc6 to fp128
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%ext7 = fpext double %frob7 to fp128
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%mul7 = fmul fp128 %accext7, %ext7
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%const7 = fpext double 1.71 to fp128
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%extra7 = fmul fp128 %mul7, %const7
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%trunc7 = fptrunc fp128 %extra7 to double
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%accext8 = fpext double %trunc7 to fp128
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%ext8 = fpext double %frob8 to fp128
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%mul8 = fmul fp128 %accext8, %ext8
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%const8 = fpext double 1.81 to fp128
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%extra8 = fmul fp128 %mul8, %const8
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%trunc8 = fptrunc fp128 %extra8 to double
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%accext9 = fpext double %trunc8 to fp128
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%ext9 = fpext double %frob9 to fp128
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%mul9 = fmul fp128 %accext9, %ext9
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%const9 = fpext double 1.91 to fp128
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%extra9 = fmul fp128 %mul9, %const9
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%trunc9 = fptrunc fp128 %extra9 to double
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ret double %trunc9
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}
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