diff options
Diffstat (limited to 'test/CodeGen/ARM/long_shift.ll')
| -rw-r--r-- | test/CodeGen/ARM/long_shift.ll | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/test/CodeGen/ARM/long_shift.ll b/test/CodeGen/ARM/long_shift.ll index 057b5f0..688b7bc 100644 --- a/test/CodeGen/ARM/long_shift.ll +++ b/test/CodeGen/ARM/long_shift.ll @@ -1,10 +1,11 @@ -; RUN: llc < %s -march=arm > %t -; RUN: grep rrx %t | count 1 -; RUN: grep __ashldi3 %t -; RUN: grep __ashrdi3 %t -; RUN: grep __lshrdi3 %t +; RUN: llc < %s -march=arm | FileCheck %s define i64 @f0(i64 %A, i64 %B) { +; CHECK: f0 +; CHECK: movs r3, r3, lsr #1 +; CHECK-NEXT: mov r2, r2, rrx +; CHECK-NEXT: subs r0, r0, r2 +; CHECK-NEXT: sbc r1, r1, r3 %tmp = bitcast i64 %A to i64 %tmp2 = lshr i64 %B, 1 %tmp3 = sub i64 %tmp, %tmp2 @@ -12,18 +13,34 @@ define i64 @f0(i64 %A, i64 %B) { } define i32 @f1(i64 %x, i64 %y) { +; CHECK: f1 +; CHECK: mov r0, r0, lsl r2 %a = shl i64 %x, %y %b = trunc i64 %a to i32 ret i32 %b } define i32 @f2(i64 %x, i64 %y) { +; CHECK: f2 +; CHECK: mov r0, r0, lsr r2 +; CHECK-NEXT: rsb r3, r2, #32 +; CHECK-NEXT: sub r2, r2, #32 +; CHECK-NEXT: cmp r2, #0 +; CHECK-NEXT: orr r0, r0, r1, lsl r3 +; CHECK-NEXT: movge r0, r1, asr r2 %a = ashr i64 %x, %y %b = trunc i64 %a to i32 ret i32 %b } define i32 @f3(i64 %x, i64 %y) { +; CHECK: f3 +; CHECK: mov r0, r0, lsr r2 +; CHECK-NEXT: rsb r3, r2, #32 +; CHECK-NEXT: sub r2, r2, #32 +; CHECK-NEXT: cmp r2, #0 +; CHECK-NEXT: orr r0, r0, r1, lsl r3 +; CHECK-NEXT: movge r0, r1, lsr r2 %a = lshr i64 %x, %y %b = trunc i64 %a to i32 ret i32 %b |
