llvm-project/llvm/test/CodeGen/SystemZ/frame-09.ll

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; Test the handling of the frame pointer (%r11).
;
; RUN: llc < %s -mtriple=s390x-linux-gnu -disable-fp-elim | FileCheck %s
; We should always initialise %r11 when FP elimination is disabled.
; We don't need to allocate any more than the caller-provided 160-byte
; area though.
define i32 @f1(i32 %x) {
; CHECK-LABEL: f1:
; CHECK: stmg %r11, %r15, 88(%r15)
; CHECK: .cfi_offset %r11, -72
; CHECK: .cfi_offset %r15, -40
; CHECK-NOT: ag
; CHECK: lgr %r11, %r15
; CHECK: .cfi_def_cfa_register %r11
; CHECK: lmg %r11, %r15, 88(%r11)
; CHECK: br %r14
%y = add i32 %x, 1
ret i32 %y
}
; Make sure that frame accesses after the initial allocation are relative
; to %r11 rather than %r15.
define void @f2(i64 %x) {
; CHECK-LABEL: f2:
; CHECK: stmg %r11, %r15, 88(%r15)
; CHECK: .cfi_offset %r11, -72
; CHECK: .cfi_offset %r15, -40
; CHECK: aghi %r15, -168
; CHECK: .cfi_def_cfa_offset 328
; CHECK: lgr %r11, %r15
; CHECK: .cfi_def_cfa_register %r11
; CHECK: stg %r2, 160(%r11)
; CHECK: lmg %r11, %r15, 256(%r11)
; CHECK: br %r14
%y = alloca i64, align 8
store volatile i64 %x, i64* %y
ret void
}
; This function should require all GPRs but no other spill slots.
; It shouldn't need to allocate its own frame.
define void @f3(i32 *%ptr) {
; CHECK-LABEL: f3:
; CHECK: stmg %r6, %r15, 48(%r15)
; CHECK-NOT: %r15
; CHECK-NOT: %r11
; CHECK: .cfi_offset %r6, -112
; CHECK: .cfi_offset %r7, -104
; CHECK: .cfi_offset %r8, -96
; CHECK: .cfi_offset %r9, -88
; CHECK: .cfi_offset %r10, -80
; CHECK: .cfi_offset %r11, -72
; CHECK: .cfi_offset %r12, -64
; CHECK: .cfi_offset %r13, -56
; CHECK: .cfi_offset %r14, -48
; CHECK: .cfi_offset %r15, -40
; CHECK-NOT: ag
; CHECK: lgr %r11, %r15
; CHECK: .cfi_def_cfa_register %r11
; ...main function body...
; CHECK-NOT: %r15
; CHECK-NOT: %r11
; CHECK: st {{.*}}, 4(%r2)
; CHECK: lmg %r6, %r15, 48(%r11)
; CHECK: br %r14
%l0 = load volatile i32 , i32 *%ptr
%l1 = load volatile i32 , i32 *%ptr
%l3 = load volatile i32 , i32 *%ptr
%l4 = load volatile i32 , i32 *%ptr
%l5 = load volatile i32 , i32 *%ptr
%l6 = load volatile i32 , i32 *%ptr
%l7 = load volatile i32 , i32 *%ptr
%l8 = load volatile i32 , i32 *%ptr
%l9 = load volatile i32 , i32 *%ptr
%l10 = load volatile i32 , i32 *%ptr
%l12 = load volatile i32 , i32 *%ptr
%l13 = load volatile i32 , i32 *%ptr
%l14 = load volatile i32 , i32 *%ptr
%add0 = add i32 %l0, %l0
%add1 = add i32 %l1, %add0
%add3 = add i32 %l3, %add1
%add4 = add i32 %l4, %add3
%add5 = add i32 %l5, %add4
%add6 = add i32 %l6, %add5
%add7 = add i32 %l7, %add6
%add8 = add i32 %l8, %add7
%add9 = add i32 %l9, %add8
%add10 = add i32 %l10, %add9
%add12 = add i32 %l12, %add10
%add13 = add i32 %l13, %add12
%add14 = add i32 %l14, %add13
store volatile i32 %add0, i32 *%ptr
store volatile i32 %add1, i32 *%ptr
store volatile i32 %add3, i32 *%ptr
store volatile i32 %add4, i32 *%ptr
store volatile i32 %add5, i32 *%ptr
store volatile i32 %add6, i32 *%ptr
store volatile i32 %add7, i32 *%ptr
store volatile i32 %add8, i32 *%ptr
store volatile i32 %add9, i32 *%ptr
store volatile i32 %add10, i32 *%ptr
store volatile i32 %add12, i32 *%ptr
store volatile i32 %add13, i32 *%ptr
[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction 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
2015-02-28 03:29:02 +08:00
%final = getelementptr i32, i32 *%ptr, i32 1
store volatile i32 %add14, i32 *%final
ret void
}
; The largest frame for which the LMG is in range. This frame has two
; emergency spill slots at 160(%r11), so create a frame of size 524192
; by allocating (524192 - 176) / 8 = 65502 doublewords.
define void @f4(i64 %x) {
; CHECK-LABEL: f4:
; CHECK: stmg %r11, %r15, 88(%r15)
; CHECK: .cfi_offset %r11, -72
; CHECK: .cfi_offset %r15, -40
; CHECK: agfi %r15, -524192
; CHECK: .cfi_def_cfa_offset 524352
; CHECK: lgr %r11, %r15
; CHECK: .cfi_def_cfa_register %r11
; CHECK: stg %r2, 176(%r11)
; CHECK-NOT: ag
; CHECK: lmg %r11, %r15, 524280(%r11)
; CHECK: br %r14
%y = alloca [65502 x i64], align 8
[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction 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
2015-02-28 03:29:02 +08:00
%ptr = getelementptr inbounds [65502 x i64], [65502 x i64]* %y, i64 0, i64 0
store volatile i64 %x, i64* %ptr
ret void
}
; The next frame size larger than f4.
define void @f5(i64 %x) {
; CHECK-LABEL: f5:
; CHECK: stmg %r11, %r15, 88(%r15)
; CHECK: .cfi_offset %r11, -72
; CHECK: .cfi_offset %r15, -40
; CHECK: agfi %r15, -524200
; CHECK: .cfi_def_cfa_offset 524360
; CHECK: lgr %r11, %r15
; CHECK: .cfi_def_cfa_register %r11
; CHECK: stg %r2, 176(%r11)
; CHECK: aghi %r11, 8
; CHECK: lmg %r11, %r15, 524280(%r11)
; CHECK: br %r14
%y = alloca [65503 x i64], align 8
[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction 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
2015-02-28 03:29:02 +08:00
%ptr = getelementptr inbounds [65503 x i64], [65503 x i64]* %y, i64 0, i64 0
store volatile i64 %x, i64* %ptr
ret void
}
; The tests above establish that %r11 is handled like %r15 for LMG.
; Rely on the %r15-based tests in frame-08.ll for other cases.