mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-21 18:29:46 +00:00
define physical registers. It's currently very restrictive, only catching cases where the CE is in an immediate (and only) predecessor. But it catches a surprising large number of cases. rdar://10660865 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147827 91177308-0d34-0410-b5e6-96231b3b80d8
102 lines
2.7 KiB
LLVM
102 lines
2.7 KiB
LLVM
; RUN: llc -mtriple=x86_64-apple-macosx < %s | FileCheck %s
|
|
; rdar://7610418
|
|
|
|
%ptr = type { i8* }
|
|
%struct.s1 = type { %ptr, %ptr }
|
|
%struct.s2 = type { i32, i8*, i8*, [256 x %struct.s1*], [8 x i32], i64, i8*, i32, i64, i64, i32, %struct.s3*, %struct.s3*, [49 x i64] }
|
|
%struct.s3 = type { %struct.s3*, %struct.s3*, i32, i32, i32 }
|
|
|
|
define fastcc i8* @t(i32 %base) nounwind {
|
|
entry:
|
|
; CHECK: t:
|
|
; CHECK: leaq (%rax,%rax,4)
|
|
%0 = zext i32 %base to i64
|
|
%1 = getelementptr inbounds %struct.s2* null, i64 %0
|
|
br i1 undef, label %bb1, label %bb2
|
|
|
|
bb1:
|
|
; CHECK: %bb1
|
|
; CHECK-NOT: shlq $9
|
|
; CHECK-NOT: leaq
|
|
; CHECK: call
|
|
%2 = getelementptr inbounds %struct.s2* null, i64 %0, i32 0
|
|
call void @bar(i32* %2) nounwind
|
|
unreachable
|
|
|
|
bb2:
|
|
; CHECK: %bb2
|
|
; CHECK-NOT: leaq
|
|
; CHECK: callq
|
|
%3 = call fastcc i8* @foo(%struct.s2* %1) nounwind
|
|
unreachable
|
|
|
|
bb3:
|
|
ret i8* undef
|
|
}
|
|
|
|
declare void @bar(i32*)
|
|
|
|
declare fastcc i8* @foo(%struct.s2*) nounwind
|
|
|
|
; rdar://8773371
|
|
|
|
declare void @printf(...) nounwind
|
|
|
|
define void @commute(i32 %test_case, i32 %scale) nounwind ssp {
|
|
; CHECK: commute:
|
|
entry:
|
|
switch i32 %test_case, label %sw.bb307 [
|
|
i32 1, label %sw.bb
|
|
i32 2, label %sw.bb
|
|
i32 3, label %sw.bb
|
|
]
|
|
|
|
sw.bb: ; preds = %entry, %entry, %entry
|
|
%mul = mul nsw i32 %test_case, 3
|
|
%mul20 = mul nsw i32 %mul, %scale
|
|
br i1 undef, label %if.end34, label %sw.bb307
|
|
|
|
if.end34: ; preds = %sw.bb
|
|
; CHECK: %if.end34
|
|
; CHECK: imull
|
|
; CHECK: leal
|
|
; CHECK-NOT: imull
|
|
tail call void (...)* @printf(i32 %test_case, i32 %mul20) nounwind
|
|
%tmp = mul i32 %scale, %test_case
|
|
%tmp752 = mul i32 %tmp, 3
|
|
%tmp753 = zext i32 %tmp752 to i64
|
|
br label %bb.nph743.us
|
|
|
|
for.body53.us: ; preds = %bb.nph743.us, %for.body53.us
|
|
%exitcond = icmp eq i64 undef, %tmp753
|
|
br i1 %exitcond, label %bb.nph743.us, label %for.body53.us
|
|
|
|
bb.nph743.us: ; preds = %for.body53.us, %if.end34
|
|
br label %for.body53.us
|
|
|
|
sw.bb307: ; preds = %sw.bb, %entry
|
|
ret void
|
|
}
|
|
|
|
; CSE physical register defining instruction across MBB boundary.
|
|
; rdar://10660865
|
|
define i32 @cross_mbb_phys_cse(i32 %a, i32 %b) nounwind ssp {
|
|
entry:
|
|
; CHECK: cross_mbb_phys_cse:
|
|
; CHECK: cmpl
|
|
; CHECK: ja
|
|
%cmp = icmp ugt i32 %a, %b
|
|
br i1 %cmp, label %return, label %if.end
|
|
|
|
if.end: ; preds = %entry
|
|
; CHECK-NOT: cmpl
|
|
; CHECK: sbbl
|
|
%cmp1 = icmp ult i32 %a, %b
|
|
%. = sext i1 %cmp1 to i32
|
|
br label %return
|
|
|
|
return: ; preds = %if.end, %entry
|
|
%retval.0 = phi i32 [ 1, %entry ], [ %., %if.end ]
|
|
ret i32 %retval.0
|
|
}
|