mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-11-04 05:17:07 +00:00
39f4e8d9cc
This update was done with the following bash script:
find test/Transforms -name "*.ll" | \
while read NAME; do
echo "$NAME"
if ! grep -q "^; *RUN: *llc" $NAME; then
TEMP=`mktemp -t temp`
cp $NAME $TEMP
sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \
while read FUNC; do
sed -i '' "s/;\(.*\)\([A-Za-z0-9_]*\):\( *\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP
done
mv $TEMP $NAME
fi
done
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186268 91177308-0d34-0410-b5e6-96231b3b80d8
142 lines
3.3 KiB
LLVM
142 lines
3.3 KiB
LLVM
; RUN: opt < %s -simplifycfg -S | FileCheck %s
|
|
|
|
; Test basic folding to a conditional branch.
|
|
define i32 @foo(i64 %x, i64 %y) nounwind {
|
|
; CHECK-LABEL: @foo(
|
|
entry:
|
|
%eq = icmp eq i64 %x, %y
|
|
br i1 %eq, label %b, label %switch
|
|
switch:
|
|
%lt = icmp slt i64 %x, %y
|
|
; CHECK: br i1 %lt, label %a, label %b
|
|
%qux = select i1 %lt, i32 0, i32 2
|
|
switch i32 %qux, label %bees [
|
|
i32 0, label %a
|
|
i32 1, label %b
|
|
i32 2, label %b
|
|
]
|
|
a:
|
|
tail call void @bees.a() nounwind
|
|
ret i32 1
|
|
; CHECK: b:
|
|
; CHECK-NEXT: %retval = phi i32 [ 0, %switch ], [ 2, %entry ]
|
|
b:
|
|
%retval = phi i32 [0, %switch], [0, %switch], [2, %entry]
|
|
tail call void @bees.b() nounwind
|
|
ret i32 %retval
|
|
; CHECK-NOT: bees:
|
|
bees:
|
|
tail call void @llvm.trap() nounwind
|
|
unreachable
|
|
}
|
|
|
|
; Test basic folding to an unconditional branch.
|
|
define i32 @bar(i64 %x, i64 %y) nounwind {
|
|
; CHECK-LABEL: @bar(
|
|
entry:
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: tail call void @bees.a() [[NUW:#[0-9]+]]
|
|
; CHECK-NEXT: ret i32 0
|
|
%lt = icmp slt i64 %x, %y
|
|
%qux = select i1 %lt, i32 0, i32 2
|
|
switch i32 %qux, label %bees [
|
|
i32 0, label %a
|
|
i32 1, label %b
|
|
i32 2, label %a
|
|
]
|
|
a:
|
|
%retval = phi i32 [0, %entry], [0, %entry], [1, %b]
|
|
tail call void @bees.a() nounwind
|
|
ret i32 0
|
|
b:
|
|
tail call void @bees.b() nounwind
|
|
br label %a
|
|
bees:
|
|
tail call void @llvm.trap() nounwind
|
|
unreachable
|
|
}
|
|
|
|
; Test the edge case where both values from the select are the default case.
|
|
define void @bazz(i64 %x, i64 %y) nounwind {
|
|
; CHECK-LABEL: @bazz(
|
|
entry:
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: tail call void @bees.b() [[NUW]]
|
|
; CHECK-NEXT: ret void
|
|
%lt = icmp slt i64 %x, %y
|
|
%qux = select i1 %lt, i32 10, i32 12
|
|
switch i32 %qux, label %b [
|
|
i32 0, label %a
|
|
i32 1, label %bees
|
|
i32 2, label %bees
|
|
]
|
|
a:
|
|
tail call void @bees.a() nounwind
|
|
ret void
|
|
b:
|
|
tail call void @bees.b() nounwind
|
|
ret void
|
|
bees:
|
|
tail call void @llvm.trap()
|
|
unreachable
|
|
}
|
|
|
|
; Test the edge case where both values from the select are equal.
|
|
define void @quux(i64 %x, i64 %y) nounwind {
|
|
; CHECK-LABEL: @quux(
|
|
entry:
|
|
; CHECK-NEXT: entry:
|
|
; CHECK-NEXT: tail call void @bees.a() [[NUW]]
|
|
; CHECK-NEXT: ret void
|
|
%lt = icmp slt i64 %x, %y
|
|
%qux = select i1 %lt, i32 0, i32 0
|
|
switch i32 %qux, label %b [
|
|
i32 0, label %a
|
|
i32 1, label %bees
|
|
i32 2, label %bees
|
|
]
|
|
a:
|
|
tail call void @bees.a() nounwind
|
|
ret void
|
|
b:
|
|
tail call void @bees.b() nounwind
|
|
ret void
|
|
bees:
|
|
tail call void @llvm.trap()
|
|
unreachable
|
|
}
|
|
|
|
; A final test, for phi node munging.
|
|
define i32 @xyzzy(i64 %x, i64 %y) {
|
|
; CHECK-LABEL: @xyzzy(
|
|
entry:
|
|
%eq = icmp eq i64 %x, %y
|
|
br i1 %eq, label %r, label %cont
|
|
cont:
|
|
; CHECK: %lt = icmp slt i64 %x, %y
|
|
%lt = icmp slt i64 %x, %y
|
|
; CHECK-NEXT: select i1 %lt, i32 -1, i32 1
|
|
%qux = select i1 %lt, i32 0, i32 2
|
|
switch i32 %qux, label %bees [
|
|
i32 0, label %a
|
|
i32 1, label %r
|
|
i32 2, label %r
|
|
]
|
|
r:
|
|
%val = phi i32 [0, %entry], [1, %cont], [1, %cont]
|
|
ret i32 %val
|
|
a:
|
|
ret i32 -1
|
|
; CHECK-NOT: bees:
|
|
bees:
|
|
tail call void @llvm.trap()
|
|
unreachable
|
|
}
|
|
|
|
declare void @llvm.trap() nounwind noreturn
|
|
declare void @bees.a() nounwind
|
|
declare void @bees.b() nounwind
|
|
|
|
; CHECK: attributes [[NUW]] = { nounwind }
|
|
; CHECK: attributes #1 = { noreturn nounwind }
|