xref: /aosp_15_r20/external/llvm/test/CodeGen/X86/vastart-defs-eflags.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: llc %s -o - | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
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-S128"
4*9880d681SAndroid Build Coastguard Workertarget triple = "x86_64-apple-macosx10.10.0"
5*9880d681SAndroid Build Coastguard Worker
6*9880d681SAndroid Build Coastguard Worker; Check that vastart handling doesn't get between testb and je for the branch.
7*9880d681SAndroid Build Coastguard Workerdefine i32 @check_flag(i32 %flags, ...) nounwind {
8*9880d681SAndroid Build Coastguard Workerentry:
9*9880d681SAndroid Build Coastguard Worker; CHECK: {{^}} testb $2, %bh
10*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: test
11*9880d681SAndroid Build Coastguard Worker; CHECK: {{^}} je
12*9880d681SAndroid Build Coastguard Worker  %and = and i32 %flags, 512
13*9880d681SAndroid Build Coastguard Worker  %tobool = icmp eq i32 %and, 0
14*9880d681SAndroid Build Coastguard Worker  br i1 %tobool, label %if.end, label %if.then
15*9880d681SAndroid Build Coastguard Worker
16*9880d681SAndroid Build Coastguard Workerif.then:                                          ; preds = %entry
17*9880d681SAndroid Build Coastguard Worker  call void @llvm.va_start(i8* null)
18*9880d681SAndroid Build Coastguard Worker  br label %if.end
19*9880d681SAndroid Build Coastguard Worker
20*9880d681SAndroid Build Coastguard Workerif.end:                                           ; preds = %entry, %if.then
21*9880d681SAndroid Build Coastguard Worker  %hasflag = phi i32 [ 1, %if.then ], [ 0, %entry ]
22*9880d681SAndroid Build Coastguard Worker  ret i32 %hasflag
23*9880d681SAndroid Build Coastguard Worker}
24*9880d681SAndroid Build Coastguard Worker
25*9880d681SAndroid Build Coastguard Workerdeclare void @llvm.va_start(i8*) nounwind
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