-; RUN: llvm-as < %s | llc -march=arm -stats |& \
-; RUN: grep {3 .*Number of machine instrs printed}
+; RUN: llc < %s -march=arm -mattr=+v4t | FileCheck %s
;; Integer absolute value, should produce something as good as: ARM:
-;; add r3, r0, r0, asr #31
-;; eor r0, r3, r0, asr #31
+;; movs r0, r0
+;; rsbmi r0, r0, #0
;; bx lr
define i32 @test(i32 %a) {
%b = icmp sgt i32 %a, -1
%abs = select i1 %b, i32 %a, i32 %tmp1neg
ret i32 %abs
+; CHECK: cmp
+; CHECK: rsbmi r0, r0, #0
+; CHECK: bx lr
}
+; rdar://11633193
+;; 3 instructions will be generated for abs(a-b):
+;; subs
+;; rsbmi
+;; bx
+define i32 @test2(i32 %a, i32 %b) nounwind readnone ssp {
+entry:
+; CHECK: test2
+; CHECK: subs
+; CHECK-NEXT: rsbmi
+; CHECK-NEXT: bx
+ %sub = sub nsw i32 %a, %b
+ %cmp = icmp sgt i32 %sub, -1
+ %sub1 = sub nsw i32 0, %sub
+ %cond = select i1 %cmp, i32 %sub, i32 %sub1
+ ret i32 %cond
+}