1 ; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu \
2 ; RUN: -ppc-asm-full-reg-names -ppc-vsr-nums-as-vr < %s | FileCheck %s
3 ; RUN: llc -verify-machineinstrs -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr8 \
4 ; RUN: -ppc-asm-full-reg-names -ppc-vsr-nums-as-vr < %s | FileCheck %s
5 ; RUN: llc -verify-machineinstrs -mtriple=powerpc64le-unknown-linux-gnu -ppc-late-peephole=false \
6 ; RUN: -ppc-asm-full-reg-names -ppc-vsr-nums-as-vr < %s | FileCheck %s \
7 ; RUN: --implicit-check-not creqv --implicit-check-not crxor
10 ; For known CRBit spills, CRSET/CRUNSET, it is more efficient to just load and
11 ; spill the known value. These tests verify that for CRSET and CRUNSET spills
12 ; we do not extract the bit for spilling.
14 %struct.anon = type { i32 }
16 @b = common dso_local global ptr null, align 8
17 @a = common dso_local global i64 0, align 8
19 ; Function Attrs: nounwind
20 define dso_local signext i32 @spillCRSET(i32 signext %p1, i32 signext %p2) {
21 ; CHECK-LABEL: spillCRSET:
23 ; CHECK-DAG: crnot [[CREG:.*]]*cr5+lt, eq
24 ; CHECK-DAG: mfocrf [[REG2:.*]], [[CREG]]
25 ; CHECK-DAG: rlwinm [[REG2]], [[REG2]]
27 ; CHECK-NOT: #UNENCODED_NOP
28 ; CHECK: lis [[REG1:.*]], -32768
30 ; CHECK-NOT: mfocrf [[REG2:.*]], [[CREG]]
31 ; CHECK-NOT: rlwinm [[REG2]], [[REG2]]
36 %tobool = icmp eq i32 %p2, 0
37 %tobool2 = icmp eq i32 %p1, 0
38 br label %redo_first_pass
40 redo_first_pass: ; preds = %for.end, %entry
41 br i1 %tobool, label %if.end, label %if.then
43 if.then: ; preds = %redo_first_pass
44 %call = tail call signext i32 @fn2() #2
45 %tobool1 = icmp ne i32 %call, 0
48 if.end: ; preds = %redo_first_pass, %if.then
49 %c.1.off0 = phi i1 [ %tobool1, %if.then ], [ true, %redo_first_pass ]
50 br i1 %tobool2, label %if.end4, label %if.then3
52 if.then3: ; preds = %if.end
53 %0 = load ptr, ptr @b, align 8
54 store i32 1, ptr %0, align 4
57 if.end4: ; preds = %if.end, %if.then3
58 tail call void asm sideeffect "#DO_NOTHING", "~{cr0},~{cr1},~{cr2},~{cr3},~{cr4},~{cr5},~{cr6},~{cr7}"()
59 br i1 %c.1.off0, label %if.then6, label %if.end13
61 if.then6: ; preds = %if.end4
62 %1 = load i64, ptr @a, align 8
63 %cmp21 = icmp eq i64 %1, 0
64 br i1 %cmp21, label %if.end13, label %for.body
66 for.body: ; preds = %if.then6, %for.body
67 %s.122 = phi i64 [ %inc, %for.body ], [ 0, %if.then6 ]
68 %call7 = tail call signext i32 @fn3()
69 %inc = add nuw i64 %s.122, 1
70 %exitcond = icmp eq i64 %inc, %1
71 br i1 %exitcond, label %for.end, label %for.body
73 for.end: ; preds = %for.body
74 br i1 %cmp21, label %if.end13, label %redo_first_pass
76 if.end13: ; preds = %if.then6, %for.end, %if.end4
80 %struct.p5rx = type { i32 }
82 ; Function Attrs: nounwind
83 define dso_local signext i32 @spillCRUNSET(ptr readonly %p1, i32 signext %p2, i32 signext %p3) {
84 ; CHECK-LABEL: spillCRUNSET:
85 ; CHECK: # %bb.0: # %entry
86 ; CHECK-DAG: li [[REG1:.*]], 0
87 ; CHECK-NOT: #UNENCODED_NOP
88 ; CHECK-NOT: mfocrf [[REG2:.*]], [[CREG]]
89 ; CHECK-NOT: rlwinm [[REG2]], [[REG2]]
93 %and = and i32 %p3, 128
94 %tobool = icmp eq i32 %and, 0
95 %tobool2 = icmp eq ptr %p1, null
96 %tobool12 = icmp eq i32 %p2, 0
97 br label %redo_first_pass
99 redo_first_pass: ; preds = %if.end11, %entry
100 %a.0.off0 = phi i1 [ false, %entry ], [ %a.1.off0, %if.end11 ]
101 br i1 %tobool, label %if.end, label %if.then
103 if.then: ; preds = %redo_first_pass
104 %call = tail call signext i32 @fn2()
105 %tobool1 = icmp ne i32 %call, 0
108 if.end: ; preds = %redo_first_pass, %if.then
109 %a.1.off0 = phi i1 [ %tobool1, %if.then ], [ %a.0.off0, %redo_first_pass ]
110 tail call void asm sideeffect "#DO_NOTHING", "~{cr0},~{cr1},~{cr2},~{cr3},~{cr4},~{cr5},~{cr6},~{cr7}"()
111 br i1 %tobool2, label %if.end11, label %land.lhs.true
113 land.lhs.true: ; preds = %if.end
114 %call3 = tail call signext i32 @fn3()
115 %tobool4 = icmp eq i32 %call3, 0
116 br i1 %tobool4, label %if.end11, label %land.lhs.true5
118 land.lhs.true5: ; preds = %land.lhs.true
119 %0 = load i32, ptr %p1, align 4
120 %tobool6 = icmp eq i32 %0, 0
121 %a.1.off0.not = xor i1 %a.1.off0, true
122 %brmerge = or i1 %tobool6, %a.1.off0.not
123 br i1 %brmerge, label %if.end11, label %if.then9
125 if.then9: ; preds = %land.lhs.true5
126 %call10 = tail call signext i32 @fn4()
129 if.end11: ; preds = %land.lhs.true5, %land.lhs.true, %if.end, %if.then9
130 br i1 %tobool12, label %if.end14, label %redo_first_pass
132 if.end14: ; preds = %if.end11
136 declare signext i32 @fn2(...)
137 declare signext i32 @fn3(...)
138 declare signext i32 @fn4(...)