-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {tst\\W*r\[0-9\],\\W*r\[0-9\]$} | count 4
-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {tst\\W*r\[0-9\],\\W*r\[0-9\],\\W*lsl\\W*#5$} | count 1
-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {tst\\W*r\[0-9\],\\W*r\[0-9\],\\W*lsr\\W*#6$} | count 1
-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {tst\\W*r\[0-9\],\\W*r\[0-9\],\\W*asr\\W*#7$} | count 1
-; RUN: llvm-as < %s | llc -march=thumb -mattr=+thumb2 | grep {tst\\W*r\[0-9\],\\W*r\[0-9\],\\W*ror\\W*#8$} | count 1
+; RUN: llc < %s -march=thumb -mattr=+thumb2 | FileCheck %s
-define i1 @f1(i32 %a, i32 %b) {
- %tmp = and i32 %a, %b
- %tmp1 = icmp ne i32 %tmp, 0
- ret i1 %tmp1
-}
+; These tests would be improved by 'movs r0, #0' being rematerialized below the
+; tst as 'mov.w r0, #0'.
define i1 @f2(i32 %a, i32 %b) {
+; CHECK: f2:
+; CHECK: tst {{.*}}, r1
%tmp = and i32 %a, %b
%tmp1 = icmp eq i32 %tmp, 0
ret i1 %tmp1
}
-define i1 @f3(i32 %a, i32 %b) {
- %tmp = and i32 %a, %b
- %tmp1 = icmp ne i32 0, %tmp
- ret i1 %tmp1
-}
-
define i1 @f4(i32 %a, i32 %b) {
+; CHECK: f4:
+; CHECK: tst {{.*}}, r1
%tmp = and i32 %a, %b
%tmp1 = icmp eq i32 0, %tmp
ret i1 %tmp1
}
define i1 @f6(i32 %a, i32 %b) {
+; CHECK: f6:
+; CHECK: tst.w {{.*}}, r1, lsl #5
%tmp = shl i32 %b, 5
%tmp1 = and i32 %a, %tmp
%tmp2 = icmp eq i32 %tmp1, 0
}
define i1 @f7(i32 %a, i32 %b) {
+; CHECK: f7:
+; CHECK: tst.w {{.*}}, r1, lsr #6
%tmp = lshr i32 %b, 6
%tmp1 = and i32 %a, %tmp
%tmp2 = icmp eq i32 %tmp1, 0
}
define i1 @f8(i32 %a, i32 %b) {
+; CHECK: f8:
+; CHECK: tst.w {{.*}}, r1, asr #7
%tmp = ashr i32 %b, 7
%tmp1 = and i32 %a, %tmp
%tmp2 = icmp eq i32 %tmp1, 0
}
define i1 @f9(i32 %a, i32 %b) {
+; CHECK: f9:
+; CHECK: tst.w {{.*}}, {{.*}}, ror #8
%l8 = shl i32 %a, 24
%r8 = lshr i32 %a, 8
%tmp = or i32 %l8, %r8