xref: /aosp_15_r20/external/llvm/test/CodeGen/X86/shift-codegen.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -relocation-model=static -march=x86 | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Worker; This should produce two shll instructions, not any lea's.
4*9880d681SAndroid Build Coastguard Worker
5*9880d681SAndroid Build Coastguard Workertarget triple = "i686-apple-darwin8"
6*9880d681SAndroid Build Coastguard Worker@Y = weak global i32 0          ; <i32*> [#uses=1]
7*9880d681SAndroid Build Coastguard Worker@X = weak global i32 0          ; <i32*> [#uses=2]
8*9880d681SAndroid Build Coastguard Worker
9*9880d681SAndroid Build Coastguard Worker
10*9880d681SAndroid Build Coastguard Workerdefine void @fn1() {
11*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: fn1:
12*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: ret
13*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: lea
14*9880d681SAndroid Build Coastguard Worker; CHECK: shll $3
15*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: lea
16*9880d681SAndroid Build Coastguard Worker; CHECK: ret
17*9880d681SAndroid Build Coastguard Worker
18*9880d681SAndroid Build Coastguard Worker  %tmp = load i32, i32* @Y             ; <i32> [#uses=1]
19*9880d681SAndroid Build Coastguard Worker  %tmp1 = shl i32 %tmp, 3         ; <i32> [#uses=1]
20*9880d681SAndroid Build Coastguard Worker  %tmp2 = load i32, i32* @X            ; <i32> [#uses=1]
21*9880d681SAndroid Build Coastguard Worker  %tmp3 = or i32 %tmp1, %tmp2             ; <i32> [#uses=1]
22*9880d681SAndroid Build Coastguard Worker  store i32 %tmp3, i32* @X
23*9880d681SAndroid Build Coastguard Worker  ret void
24*9880d681SAndroid Build Coastguard Worker}
25*9880d681SAndroid Build Coastguard Worker
26*9880d681SAndroid Build Coastguard Workerdefine i32 @fn2(i32 %X, i32 %Y) {
27*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: fn2:
28*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: ret
29*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: lea
30*9880d681SAndroid Build Coastguard Worker; CHECK: shll $3
31*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: lea
32*9880d681SAndroid Build Coastguard Worker; CHECK: ret
33*9880d681SAndroid Build Coastguard Worker
34*9880d681SAndroid Build Coastguard Worker  %tmp2 = shl i32 %Y, 3           ; <i32> [#uses=1]
35*9880d681SAndroid Build Coastguard Worker  %tmp4 = or i32 %tmp2, %X                ; <i32> [#uses=1]
36*9880d681SAndroid Build Coastguard Worker  ret i32 %tmp4
37*9880d681SAndroid Build Coastguard Worker}
38*9880d681SAndroid Build Coastguard Worker
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