mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-07-22 09:29:31 +00:00
5a70dd1d82
Similar to gep (r230786) and load (r230794) changes.
Similar migration script can be used to update test cases, which
successfully migrated all of LLVM and Polly, but about 4 test cases
needed manually changes in Clang.
(this script will read the contents of stdin and massage it into stdout
- wrap it in the 'apply.sh' script shown in previous commits + xargs to
apply it over a large set of test cases)
import fileinput
import sys
import re
rep = re.compile(r"(getelementptr(?:\s+inbounds)?\s*\()((<\d*\s+x\s+)?([^@]*?)(|\s*addrspace\(\d+\))\s*\*(?(3)>)\s*)(?=$|%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|zeroinitializer|<|\[\[[a-zA-Z]|\{\{)", re.MULTILINE | re.DOTALL)
def conv(match):
line = match.group(1)
line += match.group(4)
line += ", "
line += match.group(2)
return line
line = sys.stdin.read()
off = 0
for match in re.finditer(rep, line):
sys.stdout.write(line[off:match.start()])
sys.stdout.write(conv(match))
off = match.end()
sys.stdout.write(line[off:])
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232184 91177308-0d34-0410-b5e6-96231b3b80d8
78 lines
2.0 KiB
LLVM
78 lines
2.0 KiB
LLVM
; RUN: opt < %s -instsimplify -S | FileCheck %s
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target datalayout = "p:32:32"
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; Check some past-the-end subtleties.
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@opte_a = global i32 0
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@opte_b = global i32 0
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; Comparing base addresses of two distinct globals. Never equal.
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define zeroext i1 @no_offsets() {
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%t = icmp eq i32* @opte_a, @opte_b
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ret i1 %t
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; CHECK: no_offsets(
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; CHECK: ret i1 false
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}
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; Comparing past-the-end addresses of two distinct globals. Never equal.
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define zeroext i1 @both_past_the_end() {
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%x = getelementptr i32, i32* @opte_a, i32 1
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%y = getelementptr i32, i32* @opte_b, i32 1
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%t = icmp eq i32* %x, %y
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ret i1 %t
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; CHECK: both_past_the_end(
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; CHECK-NOT: ret i1 true
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; TODO: refine this
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}
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; Comparing past-the-end addresses of one global to the base address
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; of another. Can't fold this.
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define zeroext i1 @just_one_past_the_end() {
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%x = getelementptr i32, i32* @opte_a, i32 1
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%t = icmp eq i32* %x, @opte_b
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ret i1 %t
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; CHECK: just_one_past_the_end(
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; CHECK: ret i1 icmp eq (i32* getelementptr inbounds (i32, i32* @opte_a, i32 1), i32* @opte_b)
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}
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; Comparing base addresses of two distinct allocas. Never equal.
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define zeroext i1 @no_alloca_offsets() {
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%m = alloca i32
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%n = alloca i32
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%t = icmp eq i32* %m, %n
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ret i1 %t
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; CHECK: no_alloca_offsets(
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; CHECK: ret i1 false
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}
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; Comparing past-the-end addresses of two distinct allocas. Never equal.
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define zeroext i1 @both_past_the_end_alloca() {
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%m = alloca i32
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%n = alloca i32
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%x = getelementptr i32, i32* %m, i32 1
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%y = getelementptr i32, i32* %n, i32 1
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%t = icmp eq i32* %x, %y
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ret i1 %t
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; CHECK: both_past_the_end_alloca(
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; CHECK-NOT: ret i1 true
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; TODO: refine this
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}
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; Comparing past-the-end addresses of one alloca to the base address
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; of another. Can't fold this.
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define zeroext i1 @just_one_past_the_end_alloca() {
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%m = alloca i32
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%n = alloca i32
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%x = getelementptr i32, i32* %m, i32 1
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%t = icmp eq i32* %x, %n
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ret i1 %t
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; CHECK: just_one_past_the_end_alloca(
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; CHECK: ret i1 %t
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}
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