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https://github.com/c64scene-ar/llvm-6502.git
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7c9c6ed761
Essentially the same as the GEP change in r230786.
A similar migration script can be used to update test cases, though a few more
test case improvements/changes were required this time around: (r229269-r229278)
import fileinput
import sys
import re
pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)")
for line in sys.stdin:
sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line))
Reviewers: rafael, dexonsmith, grosser
Differential Revision: http://reviews.llvm.org/D7649
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230794 91177308-0d34-0410-b5e6-96231b3b80d8
95 lines
2.7 KiB
LLVM
95 lines
2.7 KiB
LLVM
; RUN: opt -simplifycfg -S < %s | FileCheck %s
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; This load is safe to speculate, as it's from a safe offset
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; within an alloca.
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; CHECK-LABEL: @yes(
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; CHECK-NOT: br
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define void @yes(i1 %c) nounwind {
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entry:
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%a = alloca [4 x i64*], align 8
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%__a.addr = getelementptr [4 x i64*], [4 x i64*]* %a, i64 0, i64 3
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call void @frob(i64** %__a.addr)
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br i1 %c, label %if.then, label %if.end
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if.then: ; preds = %entry
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br label %return
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if.end: ; preds = %entry
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%tmp5 = load i64*, i64** %__a.addr, align 8
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br label %return
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return: ; preds = %if.end, %if.then
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%storemerge = phi i64* [ undef, %if.then ], [ %tmp5, %if.end ]
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ret void
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}
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; CHECK-LABEL: @no0(
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; CHECK: br i1 %c
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define void @no0(i1 %c) nounwind {
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entry:
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%a = alloca [4 x i64*], align 8
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%__a.addr = getelementptr [4 x i64*], [4 x i64*]* %a, i64 0, i64 4
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call void @frob(i64** %__a.addr)
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br i1 %c, label %if.then, label %if.end
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if.then: ; preds = %entry
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br label %return
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if.end: ; preds = %entry
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%tmp5 = load i64*, i64** %__a.addr, align 8
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br label %return
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return: ; preds = %if.end, %if.then
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%storemerge = phi i64* [ undef, %if.then ], [ %tmp5, %if.end ]
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ret void
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}
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; CHECK-LABEL: @no1(
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; CHECK: br i1 %c
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define void @no1(i1 %c, i64 %n) nounwind {
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entry:
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%a = alloca [4 x i64*], align 8
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%__a.addr = getelementptr [4 x i64*], [4 x i64*]* %a, i64 0, i64 %n
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call void @frob(i64** %__a.addr)
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br i1 %c, label %if.then, label %if.end
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if.then: ; preds = %entry
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br label %return
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if.end: ; preds = %entry
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%tmp5 = load i64*, i64** %__a.addr, align 8
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br label %return
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return: ; preds = %if.end, %if.then
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%storemerge = phi i64* [ undef, %if.then ], [ %tmp5, %if.end ]
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ret void
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}
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; CHECK-LABEL: @no2(
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; CHECK: br i1 %c
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define void @no2(i1 %c, i64 %n) nounwind {
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entry:
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%a = alloca [4 x i64*], align 8
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%__a.addr = getelementptr [4 x i64*], [4 x i64*]* %a, i64 1, i64 0
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call void @frob(i64** %__a.addr)
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br i1 %c, label %if.then, label %if.end
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if.then: ; preds = %entry
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br label %return
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if.end: ; preds = %entry
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%tmp5 = load i64*, i64** %__a.addr, align 8
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br label %return
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return: ; preds = %if.end, %if.then
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%storemerge = phi i64* [ undef, %if.then ], [ %tmp5, %if.end ]
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ret void
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}
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declare void @frob(i64** nocapture %p)
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