xref: /aosp_15_r20/external/llvm/test/CodeGen/X86/div8.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker; ModuleID = '8div.c'
3*9880d681SAndroid Build Coastguard Workertarget datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
4*9880d681SAndroid Build Coastguard Workertarget triple = "x86_64-apple-macosx10.6.6"
5*9880d681SAndroid Build Coastguard Worker
6*9880d681SAndroid Build Coastguard Workerdefine signext i8 @test_div(i8 %dividend, i8 %divisor) nounwind ssp {
7*9880d681SAndroid Build Coastguard Workerentry:
8*9880d681SAndroid Build Coastguard Worker  %dividend.addr = alloca i8, align 2
9*9880d681SAndroid Build Coastguard Worker  %divisor.addr = alloca i8, align 1
10*9880d681SAndroid Build Coastguard Worker  %quotient = alloca i8, align 1
11*9880d681SAndroid Build Coastguard Worker  store i8 %dividend, i8* %dividend.addr, align 2
12*9880d681SAndroid Build Coastguard Worker  store i8 %divisor, i8* %divisor.addr, align 1
13*9880d681SAndroid Build Coastguard Worker  %tmp = load i8, i8* %dividend.addr, align 2
14*9880d681SAndroid Build Coastguard Worker  %tmp1 = load i8, i8* %divisor.addr, align 1
15*9880d681SAndroid Build Coastguard Worker; Insist on i8->i32 zero extension, even though divb demands only i16:
16*9880d681SAndroid Build Coastguard Worker; CHECK: movzbl {{.*}}%eax
17*9880d681SAndroid Build Coastguard Worker; CHECK: divb
18*9880d681SAndroid Build Coastguard Worker  %div = udiv i8 %tmp, %tmp1
19*9880d681SAndroid Build Coastguard Worker  store i8 %div, i8* %quotient, align 1
20*9880d681SAndroid Build Coastguard Worker  %tmp4 = load i8, i8* %quotient, align 1
21*9880d681SAndroid Build Coastguard Worker  ret i8 %tmp4
22*9880d681SAndroid Build Coastguard Worker}
23