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gerrit-public.fairphone.software / toolchain / llvm-project / d85260827ce64ae0e8a24a57aa48e7898b51e90d / . / llvm / test / CodeGen / ARM / long_shift.ll
blob: 3ec5fa41aa6f99a3a3c26465d7f2e7db82d49d9e [file] [log] [blame]
Christian Pirkerb5728192014-05-08 14:06:24 +0000[diff] [blame]1; RUN: llc -mtriple=arm-eabi %s -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-LE
2; RUN: llc -mtriple=armeb-eabi %s -o - | FileCheck %s -check-prefix=CHECK -check-prefix=CHECK-BE
Evan Chenga5007fa2007-01-19 09:20:23 +0000[diff] [blame]3
Reid Spencer2341c222007-02-02 02:16:23 +0000[diff] [blame]4define i64 @f0(i64 %A, i64 %B) {
Matthias Braun72d36072013-10-10 22:37:47 +0000[diff] [blame]5; CHECK-LABEL: f0:
Christian Pirkerb5728192014-05-08 14:06:24 +0000[diff] [blame]6; CHECK-LE: lsrs r3, r3, #1
7; CHECK-LE-NEXT: rrx r2, r2
8; CHECK-LE-NEXT: subs r0, r0, r2
9; CHECK-LE-NEXT: sbc r1, r1, r3
10; CHECK-BE: lsrs r2, r2, #1
11; CHECK-BE-NEXT: rrx r3, r3
12; CHECK-BE-NEXT: subs r1, r1, r3
13; CHECK-BE-NEXT: sbc r0, r0, r2
Evan Chengdf446c62007-01-27 00:04:57 +0000[diff] [blame]14 %tmp = bitcast i64 %A to i64
Reid Spencer2341c222007-02-02 02:16:23 +0000[diff] [blame]15 %tmp2 = lshr i64 %B, 1
Evan Chengdf446c62007-01-27 00:04:57 +0000[diff] [blame]16 %tmp3 = sub i64 %tmp, %tmp2
17 ret i64 %tmp3
Evan Chenga5007fa2007-01-19 09:20:23 +0000[diff] [blame]18}
19
Reid Spencer2341c222007-02-02 02:16:23 +0000[diff] [blame]20define i32 @f1(i64 %x, i64 %y) {
Matthias Braun72d36072013-10-10 22:37:47 +0000[diff] [blame]21; CHECK-LABEL: f1:
Christian Pirkerb5728192014-05-08 14:06:24 +0000[diff] [blame]22; CHECK-LE: lsl{{.*}}r2
23; CHECK-BE: lsl{{.*}}r3
Reid Spencer2341c222007-02-02 02:16:23 +0000[diff] [blame]24 %a = shl i64 %x, %y
Evan Chengdf446c62007-01-27 00:04:57 +0000[diff] [blame]25 %b = trunc i64 %a to i32
26 ret i32 %b
27}
28
Reid Spencer2341c222007-02-02 02:16:23 +0000[diff] [blame]29define i32 @f2(i64 %x, i64 %y) {
Matthias Braun72d36072013-10-10 22:37:47 +0000[diff] [blame]30; CHECK-LABEL: f2:
Christian Pirkerb5728192014-05-08 14:06:24 +0000[diff] [blame]31; CHECK-LE: lsr{{.*}}r2
32; CHECK-LE-NEXT: rsb r3, r2, #32
33; CHECK-LE-NEXT: sub r2, r2, #32
34; CHECK-LE-NEXT: orr r0, r0, r1, lsl r3
35; CHECK-LE-NEXT: cmp r2, #0
36; CHECK-LE-NEXT: asrge r0, r1, r2
37
38; CHECK-BE: lsr{{.*}}r3
39; CHECK-BE-NEXT: rsb r2, r3, #32
40; CHECK-BE-NEXT: orr r1, r1, r0, lsl r2
41; CHECK-BE-NEXT: sub r2, r3, #32
42; CHECK-BE-NEXT: cmp r2, #0
43; CHECK-BE-NEXT: asrge r1, r0, r2
44
Reid Spencer2341c222007-02-02 02:16:23 +0000[diff] [blame]45 %a = ashr i64 %x, %y
Evan Chengdf446c62007-01-27 00:04:57 +0000[diff] [blame]46 %b = trunc i64 %a to i32
47 ret i32 %b
48}
49
Reid Spencer2341c222007-02-02 02:16:23 +0000[diff] [blame]50define i32 @f3(i64 %x, i64 %y) {
Matthias Braun72d36072013-10-10 22:37:47 +0000[diff] [blame]51; CHECK-LABEL: f3:
Christian Pirkerb5728192014-05-08 14:06:24 +0000[diff] [blame]52; CHECK-LE: lsr{{.*}}r2
53; CHECK-LE-NEXT: rsb r3, r2, #32
54; CHECK-LE-NEXT: sub r2, r2, #32
55; CHECK-LE-NEXT: orr r0, r0, r1, lsl r3
56; CHECK-LE-NEXT: cmp r2, #0
57; CHECK-LE-NEXT: lsrge r0, r1, r2
58
59; CHECK-BE: lsr{{.*}}r3
60; CHECK-BE-NEXT: rsb r2, r3, #32
61; CHECK-BE-NEXT: orr r1, r1, r0, lsl r2
62; CHECK-BE-NEXT: sub r2, r3, #32
63; CHECK-BE-NEXT: cmp r2, #0
64; CHECK-BE-NEXT: lsrge r1, r0, r2
65
Reid Spencer2341c222007-02-02 02:16:23 +0000[diff] [blame]66 %a = lshr i64 %x, %y
Evan Chengdf446c62007-01-27 00:04:57 +0000[diff] [blame]67 %b = trunc i64 %a to i32
68 ret i32 %b
69}