llvm-project/llvm/test/CodeGen/AArch64/arm64-early-ifcvt.ll

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; RUN: llc -debugify-and-strip-all-safe < %s -stress-early-ifcvt -aarch64-enable-atomic-cfg-tidy=0 | FileCheck %s
target triple = "arm64-apple-macosx"
; CHECK: mm2
define i32 @mm2(i32* nocapture %p, i32 %n) nounwind uwtable readonly ssp {
entry:
br label %do.body
; CHECK: do.body
; Loop body has no branches before the backedge.
; CHECK-NOT: LBB
do.body:
%max.0 = phi i32 [ 0, %entry ], [ %max.1, %do.cond ]
%min.0 = phi i32 [ 0, %entry ], [ %min.1, %do.cond ]
%n.addr.0 = phi i32 [ %n, %entry ], [ %dec, %do.cond ]
%p.addr.0 = phi i32* [ %p, %entry ], [ %incdec.ptr, %do.cond ]
[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
%incdec.ptr = getelementptr inbounds i32, i32* %p.addr.0, i64 1
%0 = load i32, i32* %p.addr.0, align 4
%cmp = icmp sgt i32 %0, %max.0
br i1 %cmp, label %do.cond, label %if.else
if.else:
%cmp1 = icmp slt i32 %0, %min.0
%.min.0 = select i1 %cmp1, i32 %0, i32 %min.0
br label %do.cond
do.cond:
%max.1 = phi i32 [ %0, %do.body ], [ %max.0, %if.else ]
%min.1 = phi i32 [ %min.0, %do.body ], [ %.min.0, %if.else ]
; CHECK: b.ne
%dec = add i32 %n.addr.0, -1
%tobool = icmp eq i32 %dec, 0
br i1 %tobool, label %do.end, label %do.body
do.end:
%sub = sub nsw i32 %max.1, %min.1
ret i32 %sub
}
; CHECK-LABEL: fold_inc_true_32:
; CHECK: {{subs.*wzr,|cmp}} w2, #1
; CHECK-NEXT: csinc w0, w1, w0, eq
; CHECK-NEXT: ret
define i32 @fold_inc_true_32(i32 %x, i32 %y, i32 %c) nounwind ssp {
entry:
%tobool = icmp eq i32 %c, 1
%inc = add nsw i32 %x, 1
br i1 %tobool, label %eq_bb, label %done
eq_bb:
br label %done
done:
%cond = phi i32 [ %y, %eq_bb ], [ %inc, %entry ]
ret i32 %cond
}
; CHECK-LABEL: fold_inc_true_64:
; CHECK: {{subs.*xzr,|cmp}} x2, #1
; CHECK-NEXT: csinc x0, x1, x0, eq
; CHECK-NEXT: ret
define i64 @fold_inc_true_64(i64 %x, i64 %y, i64 %c) nounwind ssp {
entry:
%tobool = icmp eq i64 %c, 1
%inc = add nsw i64 %x, 1
br i1 %tobool, label %eq_bb, label %done
eq_bb:
br label %done
done:
%cond = phi i64 [ %y, %eq_bb ], [ %inc, %entry ]
ret i64 %cond
}
; CHECK-LABEL: fold_inc_false_32:
; CHECK: {{subs.*wzr,|cmp}} w2, #1
; CHECK-NEXT: csinc w0, w1, w0, ne
; CHECK-NEXT: ret
define i32 @fold_inc_false_32(i32 %x, i32 %y, i32 %c) nounwind ssp {
entry:
%tobool = icmp eq i32 %c, 1
%inc = add nsw i32 %x, 1
br i1 %tobool, label %eq_bb, label %done
eq_bb:
br label %done
done:
%cond = phi i32 [ %inc, %eq_bb ], [ %y, %entry ]
ret i32 %cond
}
; CHECK-LABEL: fold_inc_false_64:
; CHECK: {{subs.*xzr,|cmp}} x2, #1
; CHECK-NEXT: csinc x0, x1, x0, ne
; CHECK-NEXT: ret
define i64 @fold_inc_false_64(i64 %x, i64 %y, i64 %c) nounwind ssp {
entry:
%tobool = icmp eq i64 %c, 1
%inc = add nsw i64 %x, 1
br i1 %tobool, label %eq_bb, label %done
eq_bb:
br label %done
done:
%cond = phi i64 [ %inc, %eq_bb ], [ %y, %entry ]
ret i64 %cond
}
; CHECK-LABEL: fold_inv_true_32:
; CHECK: {{subs.*wzr,|cmp}} w2, #1
; CHECK-NEXT: csinv w0, w1, w0, eq
; CHECK-NEXT: ret
define i32 @fold_inv_true_32(i32 %x, i32 %y, i32 %c) nounwind ssp {
entry:
%tobool = icmp eq i32 %c, 1
%inv = xor i32 %x, -1
br i1 %tobool, label %eq_bb, label %done
eq_bb:
br label %done
done:
%cond = phi i32 [ %y, %eq_bb ], [ %inv, %entry ]
ret i32 %cond
}
; CHECK-LABEL: fold_inv_true_64:
; CHECK: {{subs.*xzr,|cmp}} x2, #1
; CHECK-NEXT: csinv x0, x1, x0, eq
; CHECK-NEXT: ret
define i64 @fold_inv_true_64(i64 %x, i64 %y, i64 %c) nounwind ssp {
entry:
%tobool = icmp eq i64 %c, 1
%inv = xor i64 %x, -1
br i1 %tobool, label %eq_bb, label %done
eq_bb:
br label %done
done:
%cond = phi i64 [ %y, %eq_bb ], [ %inv, %entry ]
ret i64 %cond
}
; CHECK-LABEL: fold_inv_false_32:
; CHECK: {{subs.*wzr,|cmp}} w2, #1
; CHECK-NEXT: csinv w0, w1, w0, ne
; CHECK-NEXT: ret
define i32 @fold_inv_false_32(i32 %x, i32 %y, i32 %c) nounwind ssp {
entry:
%tobool = icmp eq i32 %c, 1
%inv = xor i32 %x, -1
br i1 %tobool, label %eq_bb, label %done
eq_bb:
br label %done
done:
%cond = phi i32 [ %inv, %eq_bb ], [ %y, %entry ]
ret i32 %cond
}
; CHECK-LABEL: fold_inv_false_64:
; CHECK: {{subs.*xzr,|cmp}} x2, #1
; CHECK-NEXT: csinv x0, x1, x0, ne
; CHECK-NEXT: ret
define i64 @fold_inv_false_64(i64 %x, i64 %y, i64 %c) nounwind ssp {
entry:
%tobool = icmp eq i64 %c, 1
%inv = xor i64 %x, -1
br i1 %tobool, label %eq_bb, label %done
eq_bb:
br label %done
done:
%cond = phi i64 [ %inv, %eq_bb ], [ %y, %entry ]
ret i64 %cond
}
; CHECK-LABEL: fold_neg_true_32:
; CHECK: {{subs.*wzr,|cmp}} w2, #1
; CHECK-NEXT: csneg w0, w1, w0, eq
; CHECK-NEXT: ret
define i32 @fold_neg_true_32(i32 %x, i32 %y, i32 %c) nounwind ssp {
entry:
%tobool = icmp eq i32 %c, 1
%neg = sub nsw i32 0, %x
br i1 %tobool, label %eq_bb, label %done
eq_bb:
br label %done
done:
%cond = phi i32 [ %y, %eq_bb ], [ %neg, %entry ]
ret i32 %cond
}
; CHECK-LABEL: fold_neg_true_64:
; CHECK: {{subs.*xzr,|cmp}} x2, #1
; CHECK-NEXT: csneg x0, x1, x0, eq
; CHECK-NEXT: ret
define i64 @fold_neg_true_64(i64 %x, i64 %y, i64 %c) nounwind ssp {
entry:
%tobool = icmp eq i64 %c, 1
%neg = sub nsw i64 0, %x
br i1 %tobool, label %eq_bb, label %done
eq_bb:
br label %done
done:
%cond = phi i64 [ %y, %eq_bb ], [ %neg, %entry ]
ret i64 %cond
}
; CHECK-LABEL: fold_neg_false_32:
; CHECK: {{subs.*wzr,|cmp}} w2, #1
; CHECK-NEXT: csneg w0, w1, w0, ne
; CHECK-NEXT: ret
define i32 @fold_neg_false_32(i32 %x, i32 %y, i32 %c) nounwind ssp {
entry:
%tobool = icmp eq i32 %c, 1
%neg = sub nsw i32 0, %x
br i1 %tobool, label %eq_bb, label %done
eq_bb:
br label %done
done:
%cond = phi i32 [ %neg, %eq_bb ], [ %y, %entry ]
ret i32 %cond
}
; CHECK-LABEL: fold_neg_false_64:
; CHECK: {{subs.*xzr,|cmp}} x2, #1
; CHECK-NEXT: csneg x0, x1, x0, ne
; CHECK-NEXT: ret
define i64 @fold_neg_false_64(i64 %x, i64 %y, i64 %c) nounwind ssp {
entry:
%tobool = icmp eq i64 %c, 1
%neg = sub nsw i64 0, %x
br i1 %tobool, label %eq_bb, label %done
eq_bb:
br label %done
done:
%cond = phi i64 [ %neg, %eq_bb ], [ %y, %entry ]
ret i64 %cond
}
; CHECK: cbnz_32
; CHECK: {{subs.*wzr,|cmp}} w2, #0
; CHECK-NEXT: csel w0, w1, w0, ne
; CHECK-NEXT: ret
define i32 @cbnz_32(i32 %x, i32 %y, i32 %c) nounwind ssp {
entry:
%tobool = icmp eq i32 %c, 0
br i1 %tobool, label %eq_bb, label %done
eq_bb:
br label %done
done:
%cond = phi i32 [ %x, %eq_bb ], [ %y, %entry ]
ret i32 %cond
}
; CHECK: cbnz_64
; CHECK: {{subs.*xzr,|cmp}} x2, #0
; CHECK-NEXT: csel x0, x1, x0, ne
; CHECK-NEXT: ret
define i64 @cbnz_64(i64 %x, i64 %y, i64 %c) nounwind ssp {
entry:
%tobool = icmp eq i64 %c, 0
br i1 %tobool, label %eq_bb, label %done
eq_bb:
br label %done
done:
%cond = phi i64 [ %x, %eq_bb ], [ %y, %entry ]
ret i64 %cond
}
; CHECK: cbz_32
; CHECK: {{subs.*wzr,|cmp}} w2, #0
; CHECK-NEXT: csel w0, w1, w0, eq
; CHECK-NEXT: ret
define i32 @cbz_32(i32 %x, i32 %y, i32 %c) nounwind ssp {
entry:
%tobool = icmp ne i32 %c, 0
br i1 %tobool, label %ne_bb, label %done
ne_bb:
br label %done
done:
%cond = phi i32 [ %x, %ne_bb ], [ %y, %entry ]
ret i32 %cond
}
; CHECK: cbz_64
; CHECK: {{subs.*xzr,|cmp}} x2, #0
; CHECK-NEXT: csel x0, x1, x0, eq
; CHECK-NEXT: ret
define i64 @cbz_64(i64 %x, i64 %y, i64 %c) nounwind ssp {
entry:
%tobool = icmp ne i64 %c, 0
br i1 %tobool, label %ne_bb, label %done
ne_bb:
br label %done
done:
%cond = phi i64 [ %x, %ne_bb ], [ %y, %entry ]
ret i64 %cond
}
; CHECK: tbnz_32
; CHECK: {{ands.*xzr,|tst}} w2, #0x80
; CHECK-NEXT: csel w0, w1, w0, ne
; CHECK-NEXT: ret
define i32 @tbnz_32(i32 %x, i32 %y, i32 %c) nounwind ssp {
entry:
%mask = and i32 %c, 128
%tobool = icmp eq i32 %mask, 0
br i1 %tobool, label %eq_bb, label %done
eq_bb:
br label %done
done:
%cond = phi i32 [ %x, %eq_bb ], [ %y, %entry ]
ret i32 %cond
}
; CHECK: tbnz_64
; CHECK: {{ands.*xzr,|tst}} x2, #0x8000000000000000
; CHECK-NEXT: csel x0, x1, x0, ne
; CHECK-NEXT: ret
define i64 @tbnz_64(i64 %x, i64 %y, i64 %c) nounwind ssp {
entry:
%mask = and i64 %c, 9223372036854775808
%tobool = icmp eq i64 %mask, 0
br i1 %tobool, label %eq_bb, label %done
eq_bb:
br label %done
done:
%cond = phi i64 [ %x, %eq_bb ], [ %y, %entry ]
ret i64 %cond
}
; CHECK: tbz_32
; CHECK: {{ands.*xzr,|tst}} w2, #0x80
; CHECK-NEXT: csel w0, w1, w0, eq
; CHECK-NEXT: ret
define i32 @tbz_32(i32 %x, i32 %y, i32 %c) nounwind ssp {
entry:
%mask = and i32 %c, 128
%tobool = icmp ne i32 %mask, 0
br i1 %tobool, label %ne_bb, label %done
ne_bb:
br label %done
done:
%cond = phi i32 [ %x, %ne_bb ], [ %y, %entry ]
ret i32 %cond
}
; CHECK: tbz_64
; CHECK: {{ands.*xzr,|tst}} x2, #0x8000000000000000
; CHECK-NEXT: csel x0, x1, x0, eq
; CHECK-NEXT: ret
define i64 @tbz_64(i64 %x, i64 %y, i64 %c) nounwind ssp {
entry:
%mask = and i64 %c, 9223372036854775808
%tobool = icmp ne i64 %mask, 0
br i1 %tobool, label %ne_bb, label %done
ne_bb:
br label %done
done:
%cond = phi i64 [ %x, %ne_bb ], [ %y, %entry ]
ret i64 %cond
}
; This function from 175.vpr folds an ADDWri into a CSINC.
; Remember to clear the kill flag on the ADDWri.
define i32 @get_ytrack_to_xtracks() nounwind ssp {
entry:
br label %for.body
for.body:
%x0 = load i32, i32* undef, align 4
br i1 undef, label %if.then.i146, label %is_sbox.exit155
if.then.i146:
%add8.i143 = add nsw i32 0, %x0
%rem.i144 = srem i32 %add8.i143, %x0
%add9.i145 = add i32 %rem.i144, 1
br label %is_sbox.exit155
is_sbox.exit155: ; preds = %if.then.i146, %for.body
%seg_offset.0.i151 = phi i32 [ %add9.i145, %if.then.i146 ], [ undef, %for.body ]
%idxprom15.i152 = sext i32 %seg_offset.0.i151 to i64
[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
%arrayidx18.i154 = getelementptr inbounds i32, i32* null, i64 %idxprom15.i152
%x1 = load i32, i32* %arrayidx18.i154, align 4
br i1 undef, label %for.body51, label %for.body
for.body51: ; preds = %is_sbox.exit155
call fastcc void @get_switch_type(i32 %x1, i32 undef, i16 signext undef, i16 signext undef, i16* undef)
unreachable
}
declare fastcc void @get_switch_type(i32, i32, i16 signext, i16 signext, i16* nocapture) nounwind ssp