mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-29 10:32:47 +00:00
8b2b8a1835
This update was done with the following bash script:
find test/CodeGen -name "*.ll" | \
while read NAME; do
echo "$NAME"
if ! grep -q "^; *RUN: *llc.*debug" $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
sed -i '' "s/;\(.*\)-LABEL-LABEL:/;\1-LABEL:/" $TEMP
sed -i '' "s/;\(.*\)-NEXT-LABEL:/;\1-NEXT:/" $TEMP
sed -i '' "s/;\(.*\)-NOT-LABEL:/;\1-NOT:/" $TEMP
sed -i '' "s/;\(.*\)-DAG-LABEL:/;\1-DAG:/" $TEMP
mv $TEMP $NAME
fi
done
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186280 91177308-0d34-0410-b5e6-96231b3b80d8
434 lines
12 KiB
LLVM
434 lines
12 KiB
LLVM
; RUN: llc < %s -march=x86-64 -mtriple=x86_64-unknown-linux-gnu -asm-verbose=false -post-RA-scheduler=true | FileCheck %s
|
|
|
|
declare void @bar(i32)
|
|
declare void @car(i32)
|
|
declare void @dar(i32)
|
|
declare void @ear(i32)
|
|
declare void @far(i32)
|
|
declare i1 @qux()
|
|
|
|
@GHJK = global i32 0
|
|
@HABC = global i32 0
|
|
|
|
; BranchFolding should tail-merge the stores since they all precede
|
|
; direct branches to the same place.
|
|
|
|
; CHECK-LABEL: tail_merge_me:
|
|
; CHECK-NOT: GHJK
|
|
; CHECK: movl $0, GHJK(%rip)
|
|
; CHECK-NEXT: movl $1, HABC(%rip)
|
|
; CHECK-NOT: GHJK
|
|
|
|
define void @tail_merge_me() nounwind {
|
|
entry:
|
|
%a = call i1 @qux()
|
|
br i1 %a, label %A, label %next
|
|
next:
|
|
%b = call i1 @qux()
|
|
br i1 %b, label %B, label %C
|
|
|
|
A:
|
|
call void @bar(i32 0)
|
|
store i32 0, i32* @GHJK
|
|
br label %M
|
|
|
|
B:
|
|
call void @car(i32 1)
|
|
store i32 0, i32* @GHJK
|
|
br label %M
|
|
|
|
C:
|
|
call void @dar(i32 2)
|
|
store i32 0, i32* @GHJK
|
|
br label %M
|
|
|
|
M:
|
|
store i32 1, i32* @HABC
|
|
%c = call i1 @qux()
|
|
br i1 %c, label %return, label %altret
|
|
|
|
return:
|
|
call void @ear(i32 1000)
|
|
ret void
|
|
altret:
|
|
call void @far(i32 1001)
|
|
ret void
|
|
}
|
|
|
|
declare i8* @choose(i8*, i8*)
|
|
|
|
; BranchFolding should tail-duplicate the indirect jump to avoid
|
|
; redundant branching.
|
|
|
|
; CHECK-LABEL: tail_duplicate_me:
|
|
; CHECK: movl $0, GHJK(%rip)
|
|
; CHECK-NEXT: jmpq *%r
|
|
; CHECK: movl $0, GHJK(%rip)
|
|
; CHECK-NEXT: jmpq *%r
|
|
; CHECK: movl $0, GHJK(%rip)
|
|
; CHECK-NEXT: jmpq *%r
|
|
|
|
define void @tail_duplicate_me() nounwind {
|
|
entry:
|
|
%a = call i1 @qux()
|
|
%c = call i8* @choose(i8* blockaddress(@tail_duplicate_me, %return),
|
|
i8* blockaddress(@tail_duplicate_me, %altret))
|
|
br i1 %a, label %A, label %next
|
|
next:
|
|
%b = call i1 @qux()
|
|
br i1 %b, label %B, label %C
|
|
|
|
A:
|
|
call void @bar(i32 0)
|
|
store i32 0, i32* @GHJK
|
|
br label %M
|
|
|
|
B:
|
|
call void @car(i32 1)
|
|
store i32 0, i32* @GHJK
|
|
br label %M
|
|
|
|
C:
|
|
call void @dar(i32 2)
|
|
store i32 0, i32* @GHJK
|
|
br label %M
|
|
|
|
M:
|
|
indirectbr i8* %c, [label %return, label %altret]
|
|
|
|
return:
|
|
call void @ear(i32 1000)
|
|
ret void
|
|
altret:
|
|
call void @far(i32 1001)
|
|
ret void
|
|
}
|
|
|
|
; BranchFolding shouldn't try to merge the tails of two blocks
|
|
; with only a branch in common, regardless of the fallthrough situation.
|
|
|
|
; CHECK-LABEL: dont_merge_oddly:
|
|
; CHECK-NOT: ret
|
|
; CHECK: ucomiss %xmm{{[0-2]}}, %xmm{{[0-2]}}
|
|
; CHECK-NEXT: jbe .LBB2_3
|
|
; CHECK-NEXT: ucomiss %xmm{{[0-2]}}, %xmm{{[0-2]}}
|
|
; CHECK-NEXT: ja .LBB2_4
|
|
; CHECK-NEXT: jmp .LBB2_2
|
|
; CHECK-NEXT: .LBB2_3:
|
|
; CHECK-NEXT: ucomiss %xmm{{[0-2]}}, %xmm{{[0-2]}}
|
|
; CHECK-NEXT: jbe .LBB2_2
|
|
; CHECK-NEXT: .LBB2_4:
|
|
; CHECK-NEXT: xorl %eax, %eax
|
|
; CHECK-NEXT: ret
|
|
; CHECK-NEXT: .LBB2_2:
|
|
; CHECK-NEXT: movb $1, %al
|
|
; CHECK-NEXT: ret
|
|
|
|
define i1 @dont_merge_oddly(float* %result) nounwind {
|
|
entry:
|
|
%tmp4 = getelementptr float* %result, i32 2
|
|
%tmp5 = load float* %tmp4, align 4
|
|
%tmp7 = getelementptr float* %result, i32 4
|
|
%tmp8 = load float* %tmp7, align 4
|
|
%tmp10 = getelementptr float* %result, i32 6
|
|
%tmp11 = load float* %tmp10, align 4
|
|
%tmp12 = fcmp olt float %tmp8, %tmp11
|
|
br i1 %tmp12, label %bb, label %bb21
|
|
|
|
bb:
|
|
%tmp23469 = fcmp olt float %tmp5, %tmp8
|
|
br i1 %tmp23469, label %bb26, label %bb30
|
|
|
|
bb21:
|
|
%tmp23 = fcmp olt float %tmp5, %tmp11
|
|
br i1 %tmp23, label %bb26, label %bb30
|
|
|
|
bb26:
|
|
ret i1 0
|
|
|
|
bb30:
|
|
ret i1 1
|
|
}
|
|
|
|
; Do any-size tail-merging when two candidate blocks will both require
|
|
; an unconditional jump to complete a two-way conditional branch.
|
|
|
|
; CHECK-LABEL: c_expand_expr_stmt:
|
|
;
|
|
; This test only works when register allocation happens to use %rax for both
|
|
; load addresses.
|
|
;
|
|
; CHE: jmp .LBB3_11
|
|
; CHE-NEXT: .LBB3_9:
|
|
; CHE-NEXT: movq 8(%rax), %rax
|
|
; CHE-NEXT: xorl %edx, %edx
|
|
; CHE-NEXT: movb 16(%rax), %al
|
|
; CHE-NEXT: cmpb $16, %al
|
|
; CHE-NEXT: je .LBB3_11
|
|
; CHE-NEXT: cmpb $23, %al
|
|
; CHE-NEXT: jne .LBB3_14
|
|
; CHE-NEXT: .LBB3_11:
|
|
|
|
%0 = type { %struct.rtx_def* }
|
|
%struct.lang_decl = type opaque
|
|
%struct.rtx_def = type { i16, i8, i8, [1 x %union.rtunion] }
|
|
%struct.tree_decl = type { [24 x i8], i8*, i32, %union.tree_node*, i32, i8, i8, i8, i8, %union.tree_node*, %union.tree_node*, %union.tree_node*, %union.tree_node*, %union.tree_node*, %union.tree_node*, %union.tree_node*, %union.tree_node*, %union.tree_node*, %struct.rtx_def*, %union..2anon, %0, %union.tree_node*, %struct.lang_decl* }
|
|
%union..2anon = type { i32 }
|
|
%union.rtunion = type { i8* }
|
|
%union.tree_node = type { %struct.tree_decl }
|
|
|
|
define fastcc void @c_expand_expr_stmt(%union.tree_node* %expr) nounwind {
|
|
entry:
|
|
%tmp4 = load i8* null, align 8 ; <i8> [#uses=3]
|
|
switch i8 %tmp4, label %bb3 [
|
|
i8 18, label %bb
|
|
]
|
|
|
|
bb: ; preds = %entry
|
|
switch i32 undef, label %bb1 [
|
|
i32 0, label %bb2.i
|
|
i32 37, label %bb.i
|
|
]
|
|
|
|
bb.i: ; preds = %bb
|
|
switch i32 undef, label %bb1 [
|
|
i32 0, label %lvalue_p.exit
|
|
]
|
|
|
|
bb2.i: ; preds = %bb
|
|
br label %bb3
|
|
|
|
lvalue_p.exit: ; preds = %bb.i
|
|
%tmp21 = load %union.tree_node** null, align 8 ; <%union.tree_node*> [#uses=3]
|
|
%tmp22 = getelementptr inbounds %union.tree_node* %tmp21, i64 0, i32 0, i32 0, i64 0 ; <i8*> [#uses=1]
|
|
%tmp23 = load i8* %tmp22, align 8 ; <i8> [#uses=1]
|
|
%tmp24 = zext i8 %tmp23 to i32 ; <i32> [#uses=1]
|
|
switch i32 %tmp24, label %lvalue_p.exit4 [
|
|
i32 0, label %bb2.i3
|
|
i32 2, label %bb.i1
|
|
]
|
|
|
|
bb.i1: ; preds = %lvalue_p.exit
|
|
%tmp25 = getelementptr inbounds %union.tree_node* %tmp21, i64 0, i32 0, i32 2 ; <i32*> [#uses=1]
|
|
%tmp26 = bitcast i32* %tmp25 to %union.tree_node** ; <%union.tree_node**> [#uses=1]
|
|
%tmp27 = load %union.tree_node** %tmp26, align 8 ; <%union.tree_node*> [#uses=2]
|
|
%tmp28 = getelementptr inbounds %union.tree_node* %tmp27, i64 0, i32 0, i32 0, i64 16 ; <i8*> [#uses=1]
|
|
%tmp29 = load i8* %tmp28, align 8 ; <i8> [#uses=1]
|
|
%tmp30 = zext i8 %tmp29 to i32 ; <i32> [#uses=1]
|
|
switch i32 %tmp30, label %lvalue_p.exit4 [
|
|
i32 0, label %bb2.i.i2
|
|
i32 2, label %bb.i.i
|
|
]
|
|
|
|
bb.i.i: ; preds = %bb.i1
|
|
%tmp34 = tail call fastcc i32 @lvalue_p(%union.tree_node* null) nounwind ; <i32> [#uses=1]
|
|
%phitmp = icmp ne i32 %tmp34, 0 ; <i1> [#uses=1]
|
|
br label %lvalue_p.exit4
|
|
|
|
bb2.i.i2: ; preds = %bb.i1
|
|
%tmp35 = getelementptr inbounds %union.tree_node* %tmp27, i64 0, i32 0, i32 0, i64 8 ; <i8*> [#uses=1]
|
|
%tmp36 = bitcast i8* %tmp35 to %union.tree_node** ; <%union.tree_node**> [#uses=1]
|
|
%tmp37 = load %union.tree_node** %tmp36, align 8 ; <%union.tree_node*> [#uses=1]
|
|
%tmp38 = getelementptr inbounds %union.tree_node* %tmp37, i64 0, i32 0, i32 0, i64 16 ; <i8*> [#uses=1]
|
|
%tmp39 = load i8* %tmp38, align 8 ; <i8> [#uses=1]
|
|
switch i8 %tmp39, label %bb2 [
|
|
i8 16, label %lvalue_p.exit4
|
|
i8 23, label %lvalue_p.exit4
|
|
]
|
|
|
|
bb2.i3: ; preds = %lvalue_p.exit
|
|
%tmp40 = getelementptr inbounds %union.tree_node* %tmp21, i64 0, i32 0, i32 0, i64 8 ; <i8*> [#uses=1]
|
|
%tmp41 = bitcast i8* %tmp40 to %union.tree_node** ; <%union.tree_node**> [#uses=1]
|
|
%tmp42 = load %union.tree_node** %tmp41, align 8 ; <%union.tree_node*> [#uses=1]
|
|
%tmp43 = getelementptr inbounds %union.tree_node* %tmp42, i64 0, i32 0, i32 0, i64 16 ; <i8*> [#uses=1]
|
|
%tmp44 = load i8* %tmp43, align 8 ; <i8> [#uses=1]
|
|
switch i8 %tmp44, label %bb2 [
|
|
i8 16, label %lvalue_p.exit4
|
|
i8 23, label %lvalue_p.exit4
|
|
]
|
|
|
|
lvalue_p.exit4: ; preds = %bb2.i3, %bb2.i3, %bb2.i.i2, %bb2.i.i2, %bb.i.i, %bb.i1, %lvalue_p.exit
|
|
%tmp45 = phi i1 [ %phitmp, %bb.i.i ], [ false, %bb2.i.i2 ], [ false, %bb2.i.i2 ], [ false, %bb.i1 ], [ false, %bb2.i3 ], [ false, %bb2.i3 ], [ false, %lvalue_p.exit ] ; <i1> [#uses=1]
|
|
%tmp46 = icmp eq i8 %tmp4, 0 ; <i1> [#uses=1]
|
|
%or.cond = or i1 %tmp45, %tmp46 ; <i1> [#uses=1]
|
|
br i1 %or.cond, label %bb2, label %bb3
|
|
|
|
bb1: ; preds = %bb2.i.i, %bb.i, %bb
|
|
%.old = icmp eq i8 %tmp4, 23 ; <i1> [#uses=1]
|
|
br i1 %.old, label %bb2, label %bb3
|
|
|
|
bb2: ; preds = %bb1, %lvalue_p.exit4, %bb2.i3, %bb2.i.i2
|
|
br label %bb3
|
|
|
|
bb3: ; preds = %bb2, %bb1, %lvalue_p.exit4, %bb2.i, %entry
|
|
%expr_addr.0 = phi %union.tree_node* [ null, %bb2 ], [ %expr, %bb2.i ], [ %expr, %entry ], [ %expr, %bb1 ], [ %expr, %lvalue_p.exit4 ] ; <%union.tree_node*> [#uses=0]
|
|
unreachable
|
|
}
|
|
|
|
declare fastcc i32 @lvalue_p(%union.tree_node* nocapture) nounwind readonly
|
|
|
|
declare fastcc %union.tree_node* @default_conversion(%union.tree_node*) nounwind
|
|
|
|
|
|
; If one tail merging candidate falls through into the other,
|
|
; tail merging is likely profitable regardless of how few
|
|
; instructions are involved. This function should have only
|
|
; one ret instruction.
|
|
|
|
; CHECK-LABEL: foo:
|
|
; CHECK: callq func
|
|
; CHECK-NEXT: .LBB4_2:
|
|
; CHECK-NEXT: popq
|
|
; CHECK-NEXT: ret
|
|
|
|
define void @foo(i1* %V) nounwind {
|
|
entry:
|
|
%t0 = icmp eq i1* %V, null
|
|
br i1 %t0, label %return, label %bb
|
|
|
|
bb:
|
|
call void @func()
|
|
ret void
|
|
|
|
return:
|
|
ret void
|
|
}
|
|
|
|
declare void @func()
|
|
|
|
; one - One instruction may be tail-duplicated even with optsize.
|
|
|
|
; CHECK-LABEL: one:
|
|
; CHECK: movl $0, XYZ(%rip)
|
|
; CHECK: movl $0, XYZ(%rip)
|
|
|
|
@XYZ = external global i32
|
|
|
|
define void @one() nounwind optsize {
|
|
entry:
|
|
%0 = icmp eq i32 undef, 0
|
|
br i1 %0, label %bbx, label %bby
|
|
|
|
bby:
|
|
switch i32 undef, label %bb7 [
|
|
i32 16, label %return
|
|
]
|
|
|
|
bb7:
|
|
store volatile i32 0, i32* @XYZ
|
|
unreachable
|
|
|
|
bbx:
|
|
switch i32 undef, label %bb12 [
|
|
i32 128, label %return
|
|
]
|
|
|
|
bb12:
|
|
store volatile i32 0, i32* @XYZ
|
|
unreachable
|
|
|
|
return:
|
|
ret void
|
|
}
|
|
|
|
; two - Same as one, but with two instructions in the common
|
|
; tail instead of one. This is too much to be merged, given
|
|
; the optsize attribute.
|
|
|
|
; CHECK-LABEL: two:
|
|
; CHECK-NOT: XYZ
|
|
; CHECK: ret
|
|
; CHECK: movl $0, XYZ(%rip)
|
|
; CHECK: movl $1, XYZ(%rip)
|
|
; CHECK-NOT: XYZ
|
|
|
|
define void @two() nounwind optsize {
|
|
entry:
|
|
%0 = icmp eq i32 undef, 0
|
|
br i1 %0, label %bbx, label %bby
|
|
|
|
bby:
|
|
switch i32 undef, label %bb7 [
|
|
i32 16, label %return
|
|
]
|
|
|
|
bb7:
|
|
store volatile i32 0, i32* @XYZ
|
|
store volatile i32 1, i32* @XYZ
|
|
unreachable
|
|
|
|
bbx:
|
|
switch i32 undef, label %bb12 [
|
|
i32 128, label %return
|
|
]
|
|
|
|
bb12:
|
|
store volatile i32 0, i32* @XYZ
|
|
store volatile i32 1, i32* @XYZ
|
|
unreachable
|
|
|
|
return:
|
|
ret void
|
|
}
|
|
|
|
; two_nosize - Same as two, but without the optsize attribute.
|
|
; Now two instructions are enough to be tail-duplicated.
|
|
|
|
; CHECK-LABEL: two_nosize:
|
|
; CHECK: movl $0, XYZ(%rip)
|
|
; CHECK: movl $1, XYZ(%rip)
|
|
; CHECK: movl $0, XYZ(%rip)
|
|
; CHECK: movl $1, XYZ(%rip)
|
|
|
|
define void @two_nosize() nounwind {
|
|
entry:
|
|
%0 = icmp eq i32 undef, 0
|
|
br i1 %0, label %bbx, label %bby
|
|
|
|
bby:
|
|
switch i32 undef, label %bb7 [
|
|
i32 16, label %return
|
|
]
|
|
|
|
bb7:
|
|
store volatile i32 0, i32* @XYZ
|
|
store volatile i32 1, i32* @XYZ
|
|
unreachable
|
|
|
|
bbx:
|
|
switch i32 undef, label %bb12 [
|
|
i32 128, label %return
|
|
]
|
|
|
|
bb12:
|
|
store volatile i32 0, i32* @XYZ
|
|
store volatile i32 1, i32* @XYZ
|
|
unreachable
|
|
|
|
return:
|
|
ret void
|
|
}
|
|
|
|
; Tail-merging should merge the two ret instructions since one side
|
|
; can fall-through into the ret and the other side has to branch anyway.
|
|
|
|
; CHECK-LABEL: TESTE:
|
|
; CHECK: ret
|
|
; CHECK-NOT: ret
|
|
; CHECK: size TESTE
|
|
|
|
define i64 @TESTE(i64 %parami, i64 %paraml) nounwind readnone {
|
|
entry:
|
|
%cmp = icmp slt i64 %parami, 1 ; <i1> [#uses=1]
|
|
%varx.0 = select i1 %cmp, i64 1, i64 %parami ; <i64> [#uses=1]
|
|
%cmp410 = icmp slt i64 %paraml, 1 ; <i1> [#uses=1]
|
|
br i1 %cmp410, label %for.end, label %bb.nph
|
|
|
|
bb.nph: ; preds = %entry
|
|
%tmp15 = mul i64 %paraml, %parami ; <i64> [#uses=1]
|
|
ret i64 %tmp15
|
|
|
|
for.end: ; preds = %entry
|
|
ret i64 %varx.0
|
|
}
|