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gerrit-public.fairphone.software / toolchain / llvm-project / 81fe1fbf4abd00b24e078a80cb15a2d2c1343f11 / . / llvm / test / CodeGen / Thumb2 / thumb2-rsb.ll
blob: 1c5acadcf40ed16b49030c8ad58f2d0706c7d655 [file] [log] [blame]
Saleem Abdulrasool905b6d192014-04-03 23:47:24 +0000[diff] [blame]1; RUN: llc -mtriple=thumb-eabi -mcpu=arm1156t2-s -mattr=+thumb2 %s -o - | FileCheck %s
David Goodwin3bd42af2009-06-26 18:10:30 +0000[diff] [blame]2
Edward O'Callaghancc856372009-11-22 15:18:27 +0000[diff] [blame]3define i32 @f1(i32 %a, i32 %b) {
David Goodwin17512662009-06-30 01:02:20 +0000[diff] [blame]4 %tmp = shl i32 %b, 5
5 %tmp1 = sub i32 %tmp, %a
6 ret i32 %tmp1
7}
Stephen Lind24ab202013-07-14 06:24:09 +0000[diff] [blame]8; CHECK-LABEL: f1:
Edward O'Callaghancc856372009-11-22 15:18:27 +0000[diff] [blame]9; CHECK: rsb r0, r0, r1, lsl #5
David Goodwin3bd42af2009-06-26 18:10:30 +0000[diff] [blame]10
Edward O'Callaghancc856372009-11-22 15:18:27 +0000[diff] [blame]11define i32 @f2(i32 %a, i32 %b) {
David Goodwin17512662009-06-30 01:02:20 +0000[diff] [blame]12 %tmp = lshr i32 %b, 6
13 %tmp1 = sub i32 %tmp, %a
14 ret i32 %tmp1
15}
Stephen Lind24ab202013-07-14 06:24:09 +0000[diff] [blame]16; CHECK-LABEL: f2:
Edward O'Callaghancc856372009-11-22 15:18:27 +0000[diff] [blame]17; CHECK: rsb r0, r0, r1, lsr #6
David Goodwin17512662009-06-30 01:02:20 +0000[diff] [blame]18
Edward O'Callaghancc856372009-11-22 15:18:27 +0000[diff] [blame]19define i32 @f3(i32 %a, i32 %b) {
David Goodwin17512662009-06-30 01:02:20 +0000[diff] [blame]20 %tmp = ashr i32 %b, 7
21 %tmp1 = sub i32 %tmp, %a
22 ret i32 %tmp1
23}
Stephen Lind24ab202013-07-14 06:24:09 +0000[diff] [blame]24; CHECK-LABEL: f3:
Edward O'Callaghancc856372009-11-22 15:18:27 +0000[diff] [blame]25; CHECK: rsb r0, r0, r1, asr #7
David Goodwin17512662009-06-30 01:02:20 +0000[diff] [blame]26
Edward O'Callaghancc856372009-11-22 15:18:27 +0000[diff] [blame]27define i32 @f4(i32 %a, i32 %b) {
David Goodwin17512662009-06-30 01:02:20 +0000[diff] [blame]28 %l8 = shl i32 %a, 24
29 %r8 = lshr i32 %a, 8
30 %tmp = or i32 %l8, %r8
31 %tmp1 = sub i32 %tmp, %a
32 ret i32 %tmp1
David Goodwin3bd42af2009-06-26 18:10:30 +0000[diff] [blame]33}
Stephen Lind24ab202013-07-14 06:24:09 +0000[diff] [blame]34; CHECK-LABEL: f4:
Edward O'Callaghancc856372009-11-22 15:18:27 +0000[diff] [blame]35; CHECK: rsb r0, r0, r0, ror #8