mirror of
https://github.com/c64scene-ar/llvm-6502.git
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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
95 lines
2.9 KiB
LLVM
95 lines
2.9 KiB
LLVM
; RUN: opt -S < %s -jump-threading | FileCheck %s
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; Keep block addresses alive.
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@addresses = constant [4 x i8*] [
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i8* blockaddress(@test1, %L1), i8* blockaddress(@test1, %L2),
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i8* blockaddress(@test2, %L1), i8* blockaddress(@test2, %L2)
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]
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declare void @bar()
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declare void @baz()
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; Check basic jump threading for indirectbr instructions.
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; CHECK: void @test1
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; CHECK: br i1 %tobool, label %L1, label %indirectgoto
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; CHECK-NOT: if.else:
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; CHECK: L1:
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; CHECK: indirectbr i8* %address, [label %L1, label %L2]
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define void @test1(i32 %i, i8* %address) nounwind {
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entry:
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%rem = srem i32 %i, 2
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%tobool = icmp ne i32 %rem, 0
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br i1 %tobool, label %indirectgoto, label %if.else
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if.else: ; preds = %entry
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br label %indirectgoto
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L1: ; preds = %indirectgoto
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call void @bar()
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ret void
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L2: ; preds = %indirectgoto
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call void @baz()
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ret void
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indirectgoto: ; preds = %if.else, %entry
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%indirect.goto.dest = phi i8* [ %address, %if.else ], [ blockaddress(@test1, %L1), %entry ]
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indirectbr i8* %indirect.goto.dest, [label %L1, label %L2]
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}
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; Check constant folding of indirectbr
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; CHECK: void @test2
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; CHECK: entry:
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; CHECK-NEXT: br label %L1
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; CHECK: L1:
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; CHECK-NEXT: call void @bar
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; CHECK-NEXT: ret void
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define void @test2() nounwind {
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entry:
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indirectbr i8* blockaddress(@test2, %L1), [label %L1, label %L2]
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L1: ; preds = %indirectgoto
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call void @bar()
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ret void
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L2: ; preds = %indirectgoto
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call void @baz()
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ret void
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}
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; PR4151
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; Don't merge address-taken blocks.
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@.str = private unnamed_addr constant [4 x i8] c"%p\0A\00"
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; CHECK-LABEL: @test3(
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; CHECK: __here:
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; CHECK: blockaddress(@test3, %__here)
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; CHECK: __here1:
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; CHECK: blockaddress(@test3, %__here1)
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; CHECK: __here3:
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; CHECK: blockaddress(@test3, %__here3)
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define void @test3() nounwind ssp noredzone {
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entry:
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br label %__here
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__here: ; preds = %entry
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%call = call i32 (...)* @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i64 ptrtoint (i8* blockaddress(@test3, %__here) to i64)) nounwind noredzone
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br label %__here1
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__here1: ; preds = %__here
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%call2 = call i32 (...)* @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i64 ptrtoint (i8* blockaddress(@test3, %__here1) to i64)) nounwind noredzone
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br label %__here3
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__here3: ; preds = %__here1
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%call4 = call i32 (...)* @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), i64 ptrtoint (i8* blockaddress(@test3, %__here3) to i64)) nounwind noredzone
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ret void
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}
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declare i32 @printf(...) noredzone
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