llvm/test/CodeGen/X86/machine-cse.ll
2010-12-15 22:16:21 +00:00

80 lines
2.1 KiB
LLVM

; RUN: llc -mtriple=x86_64-apple-darwin < %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(i64 %size) nounwind {
entry:
; CHECK: t:
; CHECK: leaq (%rax,%rax,4)
%0 = zext i32 undef 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
}