• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1; RUN: llc -regalloc=fast -optimize-regalloc=0 -verify-machineinstrs < %s
2target 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"
3target triple = "x86_64-apple-darwin"
4
5; This test causes a virtual FP register to be redefined while it is live:
6;BB#5: derived from LLVM BB %bb10
7;    Predecessors according to CFG: BB#4 BB#5
8;	%reg1024<def> = MOV_Fp8080 %reg1034
9;	%reg1025<def> = MUL_Fp80m32 %reg1024, %RIP, 1, %reg0, <cp#0>, %reg0; mem:LD4[ConstantPool]
10;	%reg1034<def> = MOV_Fp8080 %reg1025
11;	FP_REG_KILL %FP0<imp-def>, %FP1<imp-def>, %FP2<imp-def>, %FP3<imp-def>, %FP4<imp-def>, %FP5<imp-def>, %FP6<imp-def>
12;	JMP_4 <BB#5>
13;    Successors according to CFG: BB#5
14;
15; The X86FP pass needs good kill flags, like on %FP0 representing %reg1034:
16;BB#5: derived from LLVM BB %bb10
17;    Predecessors according to CFG: BB#4 BB#5
18;	%FP0<def> = LD_Fp80m <fi#3>, 1, %reg0, 0, %reg0; mem:LD10[FixedStack3](align=4)
19;	%FP1<def> = MOV_Fp8080 %FP0<kill>
20;	%FP2<def> = MUL_Fp80m32 %FP1, %RIP, 1, %reg0, <cp#0>, %reg0; mem:LD4[ConstantPool]
21;	%FP0<def> = MOV_Fp8080 %FP2
22;	ST_FpP80m <fi#3>, 1, %reg0, 0, %reg0, %FP0<kill>; mem:ST10[FixedStack3](align=4)
23;	ST_FpP80m <fi#4>, 1, %reg0, 0, %reg0, %FP1<kill>; mem:ST10[FixedStack4](align=4)
24;	ST_FpP80m <fi#5>, 1, %reg0, 0, %reg0, %FP2<kill>; mem:ST10[FixedStack5](align=4)
25;	FP_REG_KILL %FP0<imp-def>, %FP1<imp-def>, %FP2<imp-def>, %FP3<imp-def>, %FP4<imp-def>, %FP5<imp-def>, %FP6<imp-def>
26;	JMP_4 <BB#5>
27;    Successors according to CFG: BB#5
28
29define fastcc i32 @sqlite3AtoF(i8* %z, double* nocapture %pResult) nounwind ssp {
30entry:
31  br i1 undef, label %bb2, label %bb1.i.i
32
33bb1.i.i:                                          ; preds = %entry
34  unreachable
35
36bb2:                                              ; preds = %entry
37  br i1 undef, label %isdigit339.exit11.preheader, label %bb13
38
39isdigit339.exit11.preheader:                      ; preds = %bb2
40  br i1 undef, label %bb12, label %bb10
41
42bb10:                                             ; preds = %bb10, %isdigit339.exit11.preheader
43  %divisor.041 = phi x86_fp80 [ %0, %bb10 ], [ 0xK3FFF8000000000000000, %isdigit339.exit11.preheader ] ; <x86_fp80> [#uses=1]
44  %0 = fmul x86_fp80 %divisor.041, 0xK4002A000000000000000 ; <x86_fp80> [#uses=2]
45  br i1 false, label %bb12, label %bb10
46
47bb12:                                             ; preds = %bb10, %isdigit339.exit11.preheader
48  %divisor.0.lcssa = phi x86_fp80 [ 0xK3FFF8000000000000000, %isdigit339.exit11.preheader ], [ %0, %bb10 ] ; <x86_fp80> [#uses=0]
49  br label %bb13
50
51bb13:                                             ; preds = %bb12, %bb2
52  br i1 undef, label %bb34, label %bb36
53
54bb34:                                             ; preds = %bb13
55  br label %bb36
56
57bb36:                                             ; preds = %bb34, %bb13
58  ret i32 undef
59}
60