-; RUN: llc < %s -march=arm | FileCheck %s
+; RUN: llc < %s -mtriple=armv7-apple-ios | FileCheck %s
;rdar://8003725
@G1 = external global i32
define i32 @f1(i32 %cond1, i32 %x1, i32 %x2, i32 %x3) {
entry:
+; CHECK-LABEL: f1:
; CHECK: cmp
; CHECK: moveq
; CHECK-NOT: cmp
-; CHECK: moveq
+; CHECK: mov{{eq|ne}}
%tmp1 = icmp eq i32 %cond1, 0
%tmp2 = select i1 %tmp1, i32 %x1, i32 %x2
%tmp3 = select i1 %tmp1, i32 %x2, i32 %x3
%tmp4 = add i32 %tmp2, %tmp3
ret i32 %tmp4
}
+
+@foo = external global i32
+@bar = external global [250 x i8], align 1
+
+; CSE of cmp across BB boundary
+; rdar://10660865
+define void @f2() nounwind ssp {
+entry:
+; CHECK-LABEL: f2:
+; CHECK: cmp
+; CHECK: bxlt
+; CHECK-NOT: cmp
+; CHECK: movle
+ %0 = load i32, i32* @foo, align 4
+ %cmp28 = icmp sgt i32 %0, 0
+ br i1 %cmp28, label %for.body.lr.ph, label %for.cond1.preheader
+
+for.body.lr.ph: ; preds = %entry
+ %1 = icmp sgt i32 %0, 1
+ %smax = select i1 %1, i32 %0, i32 1
+ call void @llvm.memset.p0i8.i32(i8* getelementptr inbounds ([250 x i8], [250 x i8]* @bar, i32 0, i32 0), i8 0, i32 %smax, i32 1, i1 false)
+ unreachable
+
+for.cond1.preheader: ; preds = %entry
+ ret void
+}
+
+declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i32, i1) nounwind
+
+; rdar://12462006
+define i8* @f3(i8* %base, i32* nocapture %offset, i32 %size) nounwind {
+entry:
+; CHECK-LABEL: f3:
+; CHECK-NOT: sub
+; CHECK: cmp
+; CHECK: blt
+%0 = load i32, i32* %offset, align 4
+%cmp = icmp slt i32 %0, %size
+%s = sub nsw i32 %0, %size
+%size2 = sub nsw i32 %size, 0
+br i1 %cmp, label %return, label %if.end
+
+if.end:
+; We are checking cse between %sub here and %s in entry block.
+%sub = sub nsw i32 %0, %size2
+%s2 = sub nsw i32 %s, %size
+%s3 = sub nsw i32 %sub, %s2
+; CHECK: sub [[R1:r[0-9]+]], [[R2:r[0-9]+]], r2
+; CHECK: sub [[R3:r[0-9]+]], [[R1]], r2
+; CHECK: sub [[R4:r[0-9]+]], [[R1]], [[R3]]
+; CHECK-NOT: sub
+; CHECK: str
+store i32 %s3, i32* %offset, align 4
+%add.ptr = getelementptr inbounds i8, i8* %base, i32 %sub
+br label %return
+
+return:
+%retval.0 = phi i8* [ %add.ptr, %if.end ], [ null, %entry ]
+ret i8* %retval.0
+}