llvm-project/llvm/test/CodeGen/SystemZ/frame-07.ll

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; Test the saving and restoring of FPRs in large frames.
;
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck -check-prefix=CHECK-NOFP %s
; RUN: llc < %s -mtriple=s390x-linux-gnu -disable-fp-elim | FileCheck -check-prefix=CHECK-FP %s
; Test a frame size that requires some FPRs to be saved and loaded using
; the 20-bit STDY and LDY while others can use the 12-bit STD and LD.
; The frame is big enough to require two emergency spill slots at 160(%r15),
; as well as the 8 FPR save slots. Get a frame of size 4128 by allocating
; (4128 - 176 - 8 * 8) / 8 = 486 extra doublewords.
define void @f1(double *%ptr, i64 %x) {
; CHECK-NOFP-LABEL: f1:
; CHECK-NOFP: aghi %r15, -4128
; CHECK-NOFP: .cfi_def_cfa_offset 4288
; CHECK-NOFP: stdy %f8, 4120(%r15)
; CHECK-NOFP: stdy %f9, 4112(%r15)
; CHECK-NOFP: stdy %f10, 4104(%r15)
; CHECK-NOFP: stdy %f11, 4096(%r15)
; CHECK-NOFP: std %f12, 4088(%r15)
; CHECK-NOFP: std %f13, 4080(%r15)
; CHECK-NOFP: std %f14, 4072(%r15)
; CHECK-NOFP: std %f15, 4064(%r15)
; CHECK-NOFP: .cfi_offset %f8, -168
; CHECK-NOFP: .cfi_offset %f9, -176
; CHECK-NOFP: .cfi_offset %f10, -184
; CHECK-NOFP: .cfi_offset %f11, -192
; CHECK-NOFP: .cfi_offset %f12, -200
; CHECK-NOFP: .cfi_offset %f13, -208
; CHECK-NOFP: .cfi_offset %f14, -216
; CHECK-NOFP: .cfi_offset %f15, -224
; ...main function body...
; CHECK-NOFP: ldy %f8, 4120(%r15)
; CHECK-NOFP: ldy %f9, 4112(%r15)
; CHECK-NOFP: ldy %f10, 4104(%r15)
; CHECK-NOFP: ldy %f11, 4096(%r15)
; CHECK-NOFP: ld %f12, 4088(%r15)
; CHECK-NOFP: ld %f13, 4080(%r15)
; CHECK-NOFP: ld %f14, 4072(%r15)
; CHECK-NOFP: ld %f15, 4064(%r15)
; CHECK-NOFP: aghi %r15, 4128
; CHECK-NOFP: br %r14
;
; CHECK-FP-LABEL: f1:
; CHECK-FP: stmg %r11, %r15, 88(%r15)
; CHECK-FP: aghi %r15, -4128
; CHECK-FP: .cfi_def_cfa_offset 4288
; CHECK-FP: lgr %r11, %r15
; CHECK-FP: .cfi_def_cfa_register %r11
; CHECK-FP: stdy %f8, 4120(%r11)
; CHECK-FP: stdy %f9, 4112(%r11)
; CHECK-FP: stdy %f10, 4104(%r11)
; CHECK-FP: stdy %f11, 4096(%r11)
; CHECK-FP: std %f12, 4088(%r11)
; CHECK-FP: std %f13, 4080(%r11)
; CHECK-FP: std %f14, 4072(%r11)
; CHECK-FP: std %f15, 4064(%r11)
; ...main function body...
; CHECK-FP: ldy %f8, 4120(%r11)
; CHECK-FP: ldy %f9, 4112(%r11)
; CHECK-FP: ldy %f10, 4104(%r11)
; CHECK-FP: ldy %f11, 4096(%r11)
; CHECK-FP: ld %f12, 4088(%r11)
; CHECK-FP: ld %f13, 4080(%r11)
; CHECK-FP: ld %f14, 4072(%r11)
; CHECK-FP: ld %f15, 4064(%r11)
; CHECK-FP: lmg %r11, %r15, 4216(%r11)
; CHECK-FP: br %r14
%y = alloca [486 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
%elem = getelementptr inbounds [486 x i64], [486 x i64]* %y, i64 0, i64 0
store volatile i64 %x, i64* %elem
%l0 = load volatile double *%ptr
%l1 = load volatile double *%ptr
%l2 = load volatile double *%ptr
%l3 = load volatile double *%ptr
%l4 = load volatile double *%ptr
%l5 = load volatile double *%ptr
%l6 = load volatile double *%ptr
%l7 = load volatile double *%ptr
%l8 = load volatile double *%ptr
%l9 = load volatile double *%ptr
%l10 = load volatile double *%ptr
%l11 = load volatile double *%ptr
%l12 = load volatile double *%ptr
%l13 = load volatile double *%ptr
%l14 = load volatile double *%ptr
%l15 = load volatile double *%ptr
%add0 = fadd double %l0, %l0
%add1 = fadd double %l1, %add0
%add2 = fadd double %l2, %add1
%add3 = fadd double %l3, %add2
%add4 = fadd double %l4, %add3
%add5 = fadd double %l5, %add4
%add6 = fadd double %l6, %add5
%add7 = fadd double %l7, %add6
%add8 = fadd double %l8, %add7
%add9 = fadd double %l9, %add8
%add10 = fadd double %l10, %add9
%add11 = fadd double %l11, %add10
%add12 = fadd double %l12, %add11
%add13 = fadd double %l13, %add12
%add14 = fadd double %l14, %add13
%add15 = fadd double %l15, %add14
store volatile double %add0, double *%ptr
store volatile double %add1, double *%ptr
store volatile double %add2, double *%ptr
store volatile double %add3, double *%ptr
store volatile double %add4, double *%ptr
store volatile double %add5, double *%ptr
store volatile double %add6, double *%ptr
store volatile double %add7, double *%ptr
store volatile double %add8, double *%ptr
store volatile double %add9, double *%ptr
store volatile double %add10, double *%ptr
store volatile double %add11, double *%ptr
store volatile double %add12, double *%ptr
store volatile double %add13, double *%ptr
store volatile double %add14, double *%ptr
store volatile double %add15, double *%ptr
ret void
}
; Test a frame size that requires some FPRs to be saved and loaded using
; an indexed STD and LD while others can use the 20-bit STDY and LDY.
; The index can be any call-clobbered GPR except %r0.
;
; Don't require the accesses to share the same LLILH; that would be a
; good optimisation but is really a different test.
;
; As above, get a frame of size 524320 by allocating
; (524320 - 176 - 8 * 8) / 8 = 65510 extra doublewords.
define void @f2(double *%ptr, i64 %x) {
; CHECK-NOFP-LABEL: f2:
; CHECK-NOFP: agfi %r15, -524320
; CHECK-NOFP: .cfi_def_cfa_offset 524480
; CHECK-NOFP: llilh [[INDEX:%r[1-5]]], 8
; CHECK-NOFP: std %f8, 24([[INDEX]],%r15)
; CHECK-NOFP: std %f9, 16({{%r[1-5]}},%r15)
; CHECK-NOFP: std %f10, 8({{%r[1-5]}},%r15)
; CHECK-NOFP: std %f11, 0({{%r[1-5]}},%r15)
; CHECK-NOFP: stdy %f12, 524280(%r15)
; CHECK-NOFP: stdy %f13, 524272(%r15)
; CHECK-NOFP: stdy %f14, 524264(%r15)
; CHECK-NOFP: stdy %f15, 524256(%r15)
; CHECK-NOFP: .cfi_offset %f8, -168
; CHECK-NOFP: .cfi_offset %f9, -176
; CHECK-NOFP: .cfi_offset %f10, -184
; CHECK-NOFP: .cfi_offset %f11, -192
; CHECK-NOFP: .cfi_offset %f12, -200
; CHECK-NOFP: .cfi_offset %f13, -208
; CHECK-NOFP: .cfi_offset %f14, -216
; CHECK-NOFP: .cfi_offset %f15, -224
; ...main function body...
; CHECK-NOFP: ld %f8, 24({{%r[1-5]}},%r15)
; CHECK-NOFP: ld %f9, 16({{%r[1-5]}},%r15)
; CHECK-NOFP: ld %f10, 8({{%r[1-5]}},%r15)
; CHECK-NOFP: ld %f11, 0({{%r[1-5]}},%r15)
; CHECK-NOFP: ldy %f12, 524280(%r15)
; CHECK-NOFP: ldy %f13, 524272(%r15)
; CHECK-NOFP: ldy %f14, 524264(%r15)
; CHECK-NOFP: ldy %f15, 524256(%r15)
; CHECK-NOFP: agfi %r15, 524320
; CHECK-NOFP: br %r14
;
; CHECK-FP-LABEL: f2:
; CHECK-FP: stmg %r11, %r15, 88(%r15)
; CHECK-FP: agfi %r15, -524320
; CHECK-FP: .cfi_def_cfa_offset 524480
; CHECK-FP: llilh [[INDEX:%r[1-5]]], 8
; CHECK-FP: std %f8, 24([[INDEX]],%r11)
; CHECK-FP: std %f9, 16({{%r[1-5]}},%r11)
; CHECK-FP: std %f10, 8({{%r[1-5]}},%r11)
; CHECK-FP: std %f11, 0({{%r[1-5]}},%r11)
; CHECK-FP: stdy %f12, 524280(%r11)
; CHECK-FP: stdy %f13, 524272(%r11)
; CHECK-FP: stdy %f14, 524264(%r11)
; CHECK-FP: stdy %f15, 524256(%r11)
; CHECK-FP: .cfi_offset %f8, -168
; CHECK-FP: .cfi_offset %f9, -176
; CHECK-FP: .cfi_offset %f10, -184
; CHECK-FP: .cfi_offset %f11, -192
; CHECK-FP: .cfi_offset %f12, -200
; CHECK-FP: .cfi_offset %f13, -208
; CHECK-FP: .cfi_offset %f14, -216
; CHECK-FP: .cfi_offset %f15, -224
; ...main function body...
; CHECK-FP: ld %f8, 24({{%r[1-5]}},%r11)
; CHECK-FP: ld %f9, 16({{%r[1-5]}},%r11)
; CHECK-FP: ld %f10, 8({{%r[1-5]}},%r11)
; CHECK-FP: ld %f11, 0({{%r[1-5]}},%r11)
; CHECK-FP: ldy %f12, 524280(%r11)
; CHECK-FP: ldy %f13, 524272(%r11)
; CHECK-FP: ldy %f14, 524264(%r11)
; CHECK-FP: ldy %f15, 524256(%r11)
; CHECK-FP: aghi %r11, 128
; CHECK-FP: lmg %r11, %r15, 524280(%r11)
; CHECK-FP: br %r14
%y = alloca [65510 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
%elem = getelementptr inbounds [65510 x i64], [65510 x i64]* %y, i64 0, i64 0
store volatile i64 %x, i64* %elem
%l0 = load volatile double *%ptr
%l1 = load volatile double *%ptr
%l2 = load volatile double *%ptr
%l3 = load volatile double *%ptr
%l4 = load volatile double *%ptr
%l5 = load volatile double *%ptr
%l6 = load volatile double *%ptr
%l7 = load volatile double *%ptr
%l8 = load volatile double *%ptr
%l9 = load volatile double *%ptr
%l10 = load volatile double *%ptr
%l11 = load volatile double *%ptr
%l12 = load volatile double *%ptr
%l13 = load volatile double *%ptr
%l14 = load volatile double *%ptr
%l15 = load volatile double *%ptr
%add0 = fadd double %l0, %l0
%add1 = fadd double %l1, %add0
%add2 = fadd double %l2, %add1
%add3 = fadd double %l3, %add2
%add4 = fadd double %l4, %add3
%add5 = fadd double %l5, %add4
%add6 = fadd double %l6, %add5
%add7 = fadd double %l7, %add6
%add8 = fadd double %l8, %add7
%add9 = fadd double %l9, %add8
%add10 = fadd double %l10, %add9
%add11 = fadd double %l11, %add10
%add12 = fadd double %l12, %add11
%add13 = fadd double %l13, %add12
%add14 = fadd double %l14, %add13
%add15 = fadd double %l15, %add14
store volatile double %add0, double *%ptr
store volatile double %add1, double *%ptr
store volatile double %add2, double *%ptr
store volatile double %add3, double *%ptr
store volatile double %add4, double *%ptr
store volatile double %add5, double *%ptr
store volatile double %add6, double *%ptr
store volatile double %add7, double *%ptr
store volatile double %add8, double *%ptr
store volatile double %add9, double *%ptr
store volatile double %add10, double *%ptr
store volatile double %add11, double *%ptr
store volatile double %add12, double *%ptr
store volatile double %add13, double *%ptr
store volatile double %add14, double *%ptr
store volatile double %add15, double *%ptr
ret void
}