xref: /aosp_15_r20/external/llvm/test/CodeGen/ARM/machine-licm.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=thumb-apple-darwin -relocation-model=pic -disable-fp-elim | FileCheck %s -check-prefix=THUMB
2*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=arm-apple-darwin -relocation-model=pic -disable-fp-elim   | FileCheck %s -check-prefix=ARM
3*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -mtriple=arm-apple-darwin -relocation-model=pic -disable-fp-elim -mattr=+v6t2 | FileCheck %s -check-prefix=MOVT
4*9880d681SAndroid Build Coastguard Worker; rdar://7353541
5*9880d681SAndroid Build Coastguard Worker; rdar://7354376
6*9880d681SAndroid Build Coastguard Worker; rdar://8887598
7*9880d681SAndroid Build Coastguard Worker
8*9880d681SAndroid Build Coastguard Worker@GV = external global i32                         ; <i32*> [#uses=2]
9*9880d681SAndroid Build Coastguard Worker
10*9880d681SAndroid Build Coastguard Workerdefine void @t(i32* nocapture %vals, i32 %c) nounwind {
11*9880d681SAndroid Build Coastguard Workerentry:
12*9880d681SAndroid Build Coastguard Worker; ARM-LABEL: t:
13*9880d681SAndroid Build Coastguard Worker; ARM: ldr [[REGISTER_1:r[0-9]+]], LCPI0_0
14*9880d681SAndroid Build Coastguard Worker; ARM: LPC0_0:
15*9880d681SAndroid Build Coastguard Worker; ARM: ldr r{{[0-9]+}}, [pc, [[REGISTER_1]]]
16*9880d681SAndroid Build Coastguard Worker; ARM: ldr r{{[0-9]+}}, [r{{[0-9]+}}]
17*9880d681SAndroid Build Coastguard Worker
18*9880d681SAndroid Build Coastguard Worker; MOVT-LABEL: t:
19*9880d681SAndroid Build Coastguard Worker; MOVT: movw [[REGISTER_2:r[0-9]+]], :lower16:(L_GV$non_lazy_ptr-(LPC0_0+8))
20*9880d681SAndroid Build Coastguard Worker; MOVT: movt [[REGISTER_2]], :upper16:(L_GV$non_lazy_ptr-(LPC0_0+8))
21*9880d681SAndroid Build Coastguard Worker; MOVT: LPC0_0:
22*9880d681SAndroid Build Coastguard Worker; MOVT: ldr r{{[0-9]+}}, [pc, [[REGISTER_2]]]
23*9880d681SAndroid Build Coastguard Worker; MOVT: ldr r{{[0-9]+}}, [r{{[0-9]+}}]
24*9880d681SAndroid Build Coastguard Worker
25*9880d681SAndroid Build Coastguard Worker; THUMB-LABEL: t:
26*9880d681SAndroid Build Coastguard Worker  %0 = icmp eq i32 %c, 0                          ; <i1> [#uses=1]
27*9880d681SAndroid Build Coastguard Worker  br i1 %0, label %return, label %bb.nph
28*9880d681SAndroid Build Coastguard Worker
29*9880d681SAndroid Build Coastguard Workerbb.nph:                                           ; preds = %entry
30*9880d681SAndroid Build Coastguard Worker; ARM: LCPI0_0:
31*9880d681SAndroid Build Coastguard Worker; ARM-NOT: LCPI0_1:
32*9880d681SAndroid Build Coastguard Worker; ARM: .section
33*9880d681SAndroid Build Coastguard Worker
34*9880d681SAndroid Build Coastguard Worker; THUMB: BB#1
35*9880d681SAndroid Build Coastguard Worker; THUMB: ldr r2, LCPI0_0
36*9880d681SAndroid Build Coastguard Worker; THUMB: add r2, pc
37*9880d681SAndroid Build Coastguard Worker; THUMB: ldr r{{[0-9]+}}, [r2]
38*9880d681SAndroid Build Coastguard Worker; THUMB: LBB0_2
39*9880d681SAndroid Build Coastguard Worker; THUMB: LCPI0_0:
40*9880d681SAndroid Build Coastguard Worker; THUMB-NOT: LCPI0_1:
41*9880d681SAndroid Build Coastguard Worker; THUMB: .section
42*9880d681SAndroid Build Coastguard Worker  %.pre = load i32, i32* @GV, align 4                  ; <i32> [#uses=1]
43*9880d681SAndroid Build Coastguard Worker  br label %bb
44*9880d681SAndroid Build Coastguard Worker
45*9880d681SAndroid Build Coastguard Workerbb:                                               ; preds = %bb, %bb.nph
46*9880d681SAndroid Build Coastguard Worker  %1 = phi i32 [ %.pre, %bb.nph ], [ %3, %bb ]    ; <i32> [#uses=1]
47*9880d681SAndroid Build Coastguard Worker  %i.03 = phi i32 [ 0, %bb.nph ], [ %4, %bb ]     ; <i32> [#uses=2]
48*9880d681SAndroid Build Coastguard Worker  %scevgep = getelementptr i32, i32* %vals, i32 %i.03  ; <i32*> [#uses=1]
49*9880d681SAndroid Build Coastguard Worker  %2 = load i32, i32* %scevgep, align 4                ; <i32> [#uses=1]
50*9880d681SAndroid Build Coastguard Worker  %3 = add nsw i32 %1, %2                         ; <i32> [#uses=2]
51*9880d681SAndroid Build Coastguard Worker  store i32 %3, i32* @GV, align 4
52*9880d681SAndroid Build Coastguard Worker  %4 = add i32 %i.03, 1                           ; <i32> [#uses=2]
53*9880d681SAndroid Build Coastguard Worker  %exitcond = icmp eq i32 %4, %c                  ; <i1> [#uses=1]
54*9880d681SAndroid Build Coastguard Worker  br i1 %exitcond, label %return, label %bb
55*9880d681SAndroid Build Coastguard Worker
56*9880d681SAndroid Build Coastguard Workerreturn:                                           ; preds = %bb, %entry
57*9880d681SAndroid Build Coastguard Worker  ret void
58*9880d681SAndroid Build Coastguard Worker}
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