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0d99339102
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
llvm-svn: 230786
320 lines
8.4 KiB
LLVM
320 lines
8.4 KiB
LLVM
; Test 32-bit floating-point comparison. The tests assume a z10 implementation
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; of select, using conditional branches rather than LOCGR.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s
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declare float @foo()
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; Check comparison with registers.
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define i64 @f1(i64 %a, i64 %b, float %f1, float %f2) {
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; CHECK-LABEL: f1:
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; CHECK: cebr %f0, %f2
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; CHECK-NEXT: je
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; CHECK: lgr %r2, %r3
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; CHECK: br %r14
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%cond = fcmp oeq float %f1, %f2
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; Check the low end of the CEB range.
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define i64 @f2(i64 %a, i64 %b, float %f1, float *%ptr) {
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; CHECK-LABEL: f2:
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; CHECK: ceb %f0, 0(%r4)
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; CHECK-NEXT: je
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; CHECK: lgr %r2, %r3
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; CHECK: br %r14
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%f2 = load float *%ptr
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%cond = fcmp oeq float %f1, %f2
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; Check the high end of the aligned CEB range.
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define i64 @f3(i64 %a, i64 %b, float %f1, float *%base) {
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; CHECK-LABEL: f3:
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; CHECK: ceb %f0, 4092(%r4)
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; CHECK-NEXT: je
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; CHECK: lgr %r2, %r3
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; CHECK: br %r14
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%ptr = getelementptr float, float *%base, i64 1023
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%f2 = load float *%ptr
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%cond = fcmp oeq float %f1, %f2
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; Check the next word up, which needs separate address logic.
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; Other sequences besides this one would be OK.
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define i64 @f4(i64 %a, i64 %b, float %f1, float *%base) {
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; CHECK-LABEL: f4:
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; CHECK: aghi %r4, 4096
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; CHECK: ceb %f0, 0(%r4)
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; CHECK-NEXT: je
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; CHECK: lgr %r2, %r3
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; CHECK: br %r14
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%ptr = getelementptr float, float *%base, i64 1024
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%f2 = load float *%ptr
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%cond = fcmp oeq float %f1, %f2
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; Check negative displacements, which also need separate address logic.
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define i64 @f5(i64 %a, i64 %b, float %f1, float *%base) {
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; CHECK-LABEL: f5:
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; CHECK: aghi %r4, -4
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; CHECK: ceb %f0, 0(%r4)
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; CHECK-NEXT: je
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; CHECK: lgr %r2, %r3
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; CHECK: br %r14
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%ptr = getelementptr float, float *%base, i64 -1
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%f2 = load float *%ptr
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%cond = fcmp oeq float %f1, %f2
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; Check that CEB allows indices.
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define i64 @f6(i64 %a, i64 %b, float %f1, float *%base, i64 %index) {
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; CHECK-LABEL: f6:
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; CHECK: sllg %r1, %r5, 2
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; CHECK: ceb %f0, 400(%r1,%r4)
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; CHECK-NEXT: je
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; CHECK: lgr %r2, %r3
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; CHECK: br %r14
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%ptr1 = getelementptr float, float *%base, i64 %index
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%ptr2 = getelementptr float, float *%ptr1, i64 100
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%f2 = load float *%ptr2
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%cond = fcmp oeq float %f1, %f2
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; Check that comparisons of spilled values can use CEB rather than CEBR.
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define float @f7(float *%ptr0) {
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; CHECK-LABEL: f7:
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; CHECK: brasl %r14, foo@PLT
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; CHECK: ceb {{%f[0-9]+}}, 16{{[04]}}(%r15)
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; CHECK: br %r14
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%ptr1 = getelementptr float, float *%ptr0, i64 2
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%ptr2 = getelementptr float, float *%ptr0, i64 4
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%ptr3 = getelementptr float, float *%ptr0, i64 6
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%ptr4 = getelementptr float, float *%ptr0, i64 8
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%ptr5 = getelementptr float, float *%ptr0, i64 10
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%ptr6 = getelementptr float, float *%ptr0, i64 12
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%ptr7 = getelementptr float, float *%ptr0, i64 14
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%ptr8 = getelementptr float, float *%ptr0, i64 16
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%ptr9 = getelementptr float, float *%ptr0, i64 18
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%ptr10 = getelementptr float, float *%ptr0, i64 20
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%val0 = load float *%ptr0
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%val1 = load float *%ptr1
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%val2 = load float *%ptr2
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%val3 = load float *%ptr3
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%val4 = load float *%ptr4
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%val5 = load float *%ptr5
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%val6 = load float *%ptr6
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%val7 = load float *%ptr7
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%val8 = load float *%ptr8
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%val9 = load float *%ptr9
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%val10 = load float *%ptr10
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%ret = call float @foo()
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%cmp0 = fcmp olt float %ret, %val0
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%cmp1 = fcmp olt float %ret, %val1
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%cmp2 = fcmp olt float %ret, %val2
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%cmp3 = fcmp olt float %ret, %val3
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%cmp4 = fcmp olt float %ret, %val4
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%cmp5 = fcmp olt float %ret, %val5
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%cmp6 = fcmp olt float %ret, %val6
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%cmp7 = fcmp olt float %ret, %val7
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%cmp8 = fcmp olt float %ret, %val8
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%cmp9 = fcmp olt float %ret, %val9
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%cmp10 = fcmp olt float %ret, %val10
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%sel0 = select i1 %cmp0, float %ret, float 0.0
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%sel1 = select i1 %cmp1, float %sel0, float 1.0
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%sel2 = select i1 %cmp2, float %sel1, float 2.0
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%sel3 = select i1 %cmp3, float %sel2, float 3.0
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%sel4 = select i1 %cmp4, float %sel3, float 4.0
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%sel5 = select i1 %cmp5, float %sel4, float 5.0
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%sel6 = select i1 %cmp6, float %sel5, float 6.0
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%sel7 = select i1 %cmp7, float %sel6, float 7.0
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%sel8 = select i1 %cmp8, float %sel7, float 8.0
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%sel9 = select i1 %cmp9, float %sel8, float 9.0
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%sel10 = select i1 %cmp10, float %sel9, float 10.0
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ret float %sel10
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}
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; Check comparison with zero.
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define i64 @f8(i64 %a, i64 %b, float %f) {
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; CHECK-LABEL: f8:
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; CHECK: ltebr %f0, %f0
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; CHECK-NEXT: je
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; CHECK: lgr %r2, %r3
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; CHECK: br %r14
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%cond = fcmp oeq float %f, 0.0
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; Check the comparison can be reversed if that allows CEB to be used,
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; first with oeq.
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define i64 @f9(i64 %a, i64 %b, float %f2, float *%ptr) {
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; CHECK-LABEL: f9:
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; CHECK: ceb %f0, 0(%r4)
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; CHECK-NEXT: je {{\.L.*}}
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; CHECK: lgr %r2, %r3
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; CHECK: br %r14
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%f1 = load float *%ptr
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%cond = fcmp oeq float %f1, %f2
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; ...then one.
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define i64 @f10(i64 %a, i64 %b, float %f2, float *%ptr) {
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; CHECK-LABEL: f10:
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; CHECK: ceb %f0, 0(%r4)
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; CHECK-NEXT: jlh {{\.L.*}}
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; CHECK: lgr %r2, %r3
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; CHECK: br %r14
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%f1 = load float *%ptr
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%cond = fcmp one float %f1, %f2
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; ...then olt.
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define i64 @f11(i64 %a, i64 %b, float %f2, float *%ptr) {
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; CHECK-LABEL: f11:
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; CHECK: ceb %f0, 0(%r4)
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; CHECK-NEXT: jh {{\.L.*}}
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; CHECK: lgr %r2, %r3
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; CHECK: br %r14
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%f1 = load float *%ptr
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%cond = fcmp olt float %f1, %f2
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; ...then ole.
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define i64 @f12(i64 %a, i64 %b, float %f2, float *%ptr) {
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; CHECK-LABEL: f12:
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; CHECK: ceb %f0, 0(%r4)
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; CHECK-NEXT: jhe {{\.L.*}}
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; CHECK: lgr %r2, %r3
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; CHECK: br %r14
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%f1 = load float *%ptr
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%cond = fcmp ole float %f1, %f2
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; ...then oge.
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define i64 @f13(i64 %a, i64 %b, float %f2, float *%ptr) {
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; CHECK-LABEL: f13:
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; CHECK: ceb %f0, 0(%r4)
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; CHECK-NEXT: jle {{\.L.*}}
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; CHECK: lgr %r2, %r3
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; CHECK: br %r14
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%f1 = load float *%ptr
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%cond = fcmp oge float %f1, %f2
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; ...then ogt.
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define i64 @f14(i64 %a, i64 %b, float %f2, float *%ptr) {
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; CHECK-LABEL: f14:
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; CHECK: ceb %f0, 0(%r4)
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; CHECK-NEXT: jl {{\.L.*}}
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; CHECK: lgr %r2, %r3
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; CHECK: br %r14
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%f1 = load float *%ptr
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%cond = fcmp ogt float %f1, %f2
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; ...then ueq.
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define i64 @f15(i64 %a, i64 %b, float %f2, float *%ptr) {
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; CHECK-LABEL: f15:
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; CHECK: ceb %f0, 0(%r4)
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; CHECK-NEXT: jnlh {{\.L.*}}
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; CHECK: lgr %r2, %r3
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; CHECK: br %r14
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%f1 = load float *%ptr
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%cond = fcmp ueq float %f1, %f2
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; ...then une.
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define i64 @f16(i64 %a, i64 %b, float %f2, float *%ptr) {
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; CHECK-LABEL: f16:
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; CHECK: ceb %f0, 0(%r4)
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; CHECK-NEXT: jne {{\.L.*}}
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; CHECK: lgr %r2, %r3
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; CHECK: br %r14
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%f1 = load float *%ptr
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%cond = fcmp une float %f1, %f2
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; ...then ult.
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define i64 @f17(i64 %a, i64 %b, float %f2, float *%ptr) {
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; CHECK-LABEL: f17:
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; CHECK: ceb %f0, 0(%r4)
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; CHECK-NEXT: jnle {{\.L.*}}
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; CHECK: lgr %r2, %r3
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; CHECK: br %r14
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%f1 = load float *%ptr
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%cond = fcmp ult float %f1, %f2
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; ...then ule.
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define i64 @f18(i64 %a, i64 %b, float %f2, float *%ptr) {
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; CHECK-LABEL: f18:
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; CHECK: ceb %f0, 0(%r4)
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; CHECK-NEXT: jnl {{\.L.*}}
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; CHECK: lgr %r2, %r3
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; CHECK: br %r14
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%f1 = load float *%ptr
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%cond = fcmp ule float %f1, %f2
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; ...then uge.
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define i64 @f19(i64 %a, i64 %b, float %f2, float *%ptr) {
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; CHECK-LABEL: f19:
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; CHECK: ceb %f0, 0(%r4)
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; CHECK-NEXT: jnh {{\.L.*}}
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; CHECK: lgr %r2, %r3
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; CHECK: br %r14
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%f1 = load float *%ptr
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%cond = fcmp uge float %f1, %f2
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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; ...then ugt.
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define i64 @f20(i64 %a, i64 %b, float %f2, float *%ptr) {
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; CHECK-LABEL: f20:
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; CHECK: ceb %f0, 0(%r4)
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; CHECK-NEXT: jnhe {{\.L.*}}
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; CHECK: lgr %r2, %r3
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; CHECK: br %r14
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%f1 = load float *%ptr
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%cond = fcmp ugt float %f1, %f2
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%res = select i1 %cond, i64 %a, i64 %b
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ret i64 %res
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}
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