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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
156 lines
4.5 KiB
LLVM
156 lines
4.5 KiB
LLVM
; Replace a 'select' with 'or' in 'select - cmp [eq|ne] - br' sequence
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; RUN: opt -instcombine -S < %s | FileCheck %s
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%C = type <{ %struct.S }>
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%struct.S = type { i64*, i32, i32 }
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declare void @bar(%struct.S *) #1
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declare void @foobar()
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define void @test1(%C*) {
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entry:
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%1 = getelementptr inbounds %C, %C* %0, i64 0, i32 0, i32 0
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%m = load i64*, i64** %1, align 8
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%2 = getelementptr inbounds %C, %C* %0, i64 1, i32 0, i32 0
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%n = load i64*, i64** %2, align 8
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%3 = getelementptr inbounds i64, i64* %m, i64 9
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%4 = bitcast i64* %3 to i64 (%C*)**
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%5 = load i64 (%C*)*, i64 (%C*)** %4, align 8
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%6 = icmp eq i64* %m, %n
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%7 = select i1 %6, %C* %0, %C* null
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%8 = icmp eq %C* %7, null
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br i1 %8, label %12, label %10
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; <label>:9 ; preds = %10, %12
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ret void
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; <label>:10 ; preds = %entry
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%11 = getelementptr inbounds %C, %C* %7, i64 0, i32 0
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tail call void @bar(%struct.S* %11)
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br label %9
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; <label>:12 ; preds = %entry
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%13 = tail call i64 %5(%C* %0)
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br label %9
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; CHECK-LABEL: @test1(
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; CHECK-NOT: select
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; CHECK: or
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; CHECK-NOT: select
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}
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define void @test2(%C*) {
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entry:
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%1 = getelementptr inbounds %C, %C* %0, i64 0, i32 0, i32 0
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%m = load i64*, i64** %1, align 8
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%2 = getelementptr inbounds %C, %C* %0, i64 1, i32 0, i32 0
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%n = load i64*, i64** %2, align 8
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%3 = getelementptr inbounds i64, i64* %m, i64 9
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%4 = bitcast i64* %3 to i64 (%C*)**
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%5 = load i64 (%C*)*, i64 (%C*)** %4, align 8
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%6 = icmp eq i64* %m, %n
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%7 = select i1 %6, %C* null, %C* %0
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%8 = icmp eq %C* %7, null
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br i1 %8, label %12, label %10
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; <label>:9 ; preds = %10, %12
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ret void
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; <label>:10 ; preds = %entry
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%11 = getelementptr inbounds %C, %C* %7, i64 0, i32 0
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tail call void @bar(%struct.S* %11)
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br label %9
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; <label>:12 ; preds = %entry
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%13 = tail call i64 %5(%C* %0)
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br label %9
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; CHECK-LABEL: @test2(
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; CHECK-NOT: select
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; CHECK: or
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; CHECK-NOT: select
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}
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define void @test3(%C*) {
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entry:
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%1 = getelementptr inbounds %C, %C* %0, i64 0, i32 0, i32 0
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%m = load i64*, i64** %1, align 8
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%2 = getelementptr inbounds %C, %C* %0, i64 1, i32 0, i32 0
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%n = load i64*, i64** %2, align 8
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%3 = getelementptr inbounds i64, i64* %m, i64 9
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%4 = bitcast i64* %3 to i64 (%C*)**
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%5 = load i64 (%C*)*, i64 (%C*)** %4, align 8
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%6 = icmp eq i64* %m, %n
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%7 = select i1 %6, %C* %0, %C* null
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%8 = icmp ne %C* %7, null
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br i1 %8, label %10, label %12
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; <label>:9 ; preds = %10, %12
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ret void
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; <label>:10 ; preds = %entry
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%11 = getelementptr inbounds %C, %C* %7, i64 0, i32 0
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tail call void @bar(%struct.S* %11)
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br label %9
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; <label>:12 ; preds = %entry
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%13 = tail call i64 %5(%C* %0)
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br label %9
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; CHECK-LABEL: @test3(
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; CHECK-NOT: select
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; CHECK: or
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; CHECK-NOT: select
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}
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define void @test4(%C*) {
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entry:
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%1 = getelementptr inbounds %C, %C* %0, i64 0, i32 0, i32 0
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%m = load i64*, i64** %1, align 8
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%2 = getelementptr inbounds %C, %C* %0, i64 1, i32 0, i32 0
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%n = load i64*, i64** %2, align 8
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%3 = getelementptr inbounds i64, i64* %m, i64 9
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%4 = bitcast i64* %3 to i64 (%C*)**
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%5 = load i64 (%C*)*, i64 (%C*)** %4, align 8
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%6 = icmp eq i64* %m, %n
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%7 = select i1 %6, %C* null, %C* %0
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%8 = icmp ne %C* %7, null
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br i1 %8, label %10, label %12
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; <label>:9 ; preds = %10, %12
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ret void
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; <label>:10 ; preds = %entry
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%11 = getelementptr inbounds %C, %C* %7, i64 0, i32 0
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tail call void @bar(%struct.S* %11)
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br label %9
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; <label>:12 ; preds = %entry
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%13 = tail call i64 %5(%C* %0)
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br label %9
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; CHECK-LABEL: @test4(
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; CHECK-NOT: select
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; CHECK: or
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; CHECK-NOT: select
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}
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define void @test5(%C*, i1) {
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entry:
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%2 = select i1 %1, %C* null, %C* %0
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%3 = icmp ne %C* %2, null
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br i1 %3, label %5, label %7
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; <label>:4 ; preds = %10, %12
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ret void
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; <label>:5 ; preds = %entry
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%6 = getelementptr inbounds %C, %C* %2, i64 0, i32 0
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tail call void @bar(%struct.S* %6)
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br label %4
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; <label>:7 ; preds = %entry
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tail call void @foobar()
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br label %4
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; CHECK-LABEL: @test5(
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; CHECK-NOT: select
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; CHECK: or
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; CHECK-NOT: select
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}
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