xref: /aosp_15_r20/external/llvm/test/CodeGen/X86/2011-06-14-PreschedRegalias.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58) 
1*9880d681SAndroid Build Coastguard Worker; RUN: llc < %s -march=x86-64 -stress-sched | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker; REQUIRES: asserts
3*9880d681SAndroid Build Coastguard Worker; Test interference between physreg aliases during preRAsched.
4*9880d681SAndroid Build Coastguard Worker; mul wants an operand in AL, but call clobbers it.
5*9880d681SAndroid Build Coastguard Worker
6*9880d681SAndroid Build Coastguard Workerdefine i8 @f(i8 %v1, i8 %v2) nounwind {
7*9880d681SAndroid Build Coastguard Workerentry:
8*9880d681SAndroid Build Coastguard Worker; CHECK: callq
9*9880d681SAndroid Build Coastguard Worker; CHECK: movl %{{.*}}, %eax
10*9880d681SAndroid Build Coastguard Worker; CHECK: mulb
11*9880d681SAndroid Build Coastguard Worker; CHECK: mulb
12*9880d681SAndroid Build Coastguard Worker        %rval = tail call i8 @bar() nounwind
13*9880d681SAndroid Build Coastguard Worker        %m1 = mul i8 %v1, %v2
14*9880d681SAndroid Build Coastguard Worker        %m2 = mul i8 %m1, %rval
15*9880d681SAndroid Build Coastguard Worker        ret i8 %m2
16*9880d681SAndroid Build Coastguard Worker}
17*9880d681SAndroid Build Coastguard Worker
18*9880d681SAndroid Build Coastguard Workerdeclare i8 @bar()
19