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 %struct.anon* 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 bitcast (i32 (...)* @fn2 to i32 ()*)() #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 %struct.anon*, %struct.anon** @b, align 8
54 %contains_i = getelementptr inbounds %struct.anon, %struct.anon* %0, i64 0, i32 0
55 store i32 1, i32* %contains_i, align 4
58 if.end4: ; preds = %if.end, %if.then3
59 tail call void asm sideeffect "#DO_NOTHING", "~{cr0},~{cr1},~{cr2},~{cr3},~{cr4},~{cr5},~{cr6},~{cr7}"()
60 br i1 %c.1.off0, label %if.then6, label %if.end13
62 if.then6: ; preds = %if.end4
63 %1 = load i64, i64* @a, align 8
64 %cmp21 = icmp eq i64 %1, 0
65 br i1 %cmp21, label %if.end13, label %for.body
67 for.body: ; preds = %if.then6, %for.body
68 %s.122 = phi i64 [ %inc, %for.body ], [ 0, %if.then6 ]
69 %call7 = tail call signext i32 bitcast (i32 (...)* @fn3 to i32 ()*)()
70 %inc = add nuw i64 %s.122, 1
71 %exitcond = icmp eq i64 %inc, %1
72 br i1 %exitcond, label %for.end, label %for.body
74 for.end: ; preds = %for.body
75 br i1 %cmp21, label %if.end13, label %redo_first_pass
77 if.end13: ; preds = %if.then6, %for.end, %if.end4
81 %struct.p5rx = type { i32 }
83 ; Function Attrs: nounwind
84 define dso_local signext i32 @spillCRUNSET(%struct.p5rx* readonly %p1, i32 signext %p2, i32 signext %p3) {
85 ; CHECK-LABEL: spillCRUNSET:
86 ; CHECK: # %bb.0: # %entry
87 ; CHECK-DAG: li [[REG1:.*]], 0
88 ; CHECK-NOT: #UNENCODED_NOP
89 ; CHECK-NOT: mfocrf [[REG2:.*]], [[CREG]]
90 ; CHECK-NOT: rlwinm [[REG2]], [[REG2]]
94 %and = and i32 %p3, 128
95 %tobool = icmp eq i32 %and, 0
96 %tobool2 = icmp eq %struct.p5rx* %p1, null
97 %sv_any = getelementptr inbounds %struct.p5rx, %struct.p5rx* %p1, i64 0, i32 0
98 %tobool12 = icmp eq i32 %p2, 0
99 br label %redo_first_pass
101 redo_first_pass: ; preds = %if.end11, %entry
102 %a.0.off0 = phi i1 [ false, %entry ], [ %a.1.off0, %if.end11 ]
103 br i1 %tobool, label %if.end, label %if.then
105 if.then: ; preds = %redo_first_pass
106 %call = tail call signext i32 bitcast (i32 (...)* @fn2 to i32 ()*)()
107 %tobool1 = icmp ne i32 %call, 0
110 if.end: ; preds = %redo_first_pass, %if.then
111 %a.1.off0 = phi i1 [ %tobool1, %if.then ], [ %a.0.off0, %redo_first_pass ]
112 tail call void asm sideeffect "#DO_NOTHING", "~{cr0},~{cr1},~{cr2},~{cr3},~{cr4},~{cr5},~{cr6},~{cr7}"()
113 br i1 %tobool2, label %if.end11, label %land.lhs.true
115 land.lhs.true: ; preds = %if.end
116 %call3 = tail call signext i32 bitcast (i32 (...)* @fn3 to i32 ()*)()
117 %tobool4 = icmp eq i32 %call3, 0
118 br i1 %tobool4, label %if.end11, label %land.lhs.true5
120 land.lhs.true5: ; preds = %land.lhs.true
121 %0 = load i32, i32* %sv_any, align 4
122 %tobool6 = icmp eq i32 %0, 0
123 %a.1.off0.not = xor i1 %a.1.off0, true
124 %brmerge = or i1 %tobool6, %a.1.off0.not
125 br i1 %brmerge, label %if.end11, label %if.then9
127 if.then9: ; preds = %land.lhs.true5
128 %call10 = tail call signext i32 bitcast (i32 (...)* @fn4 to i32 ()*)()
131 if.end11: ; preds = %land.lhs.true5, %land.lhs.true, %if.end, %if.then9
132 br i1 %tobool12, label %if.end14, label %redo_first_pass
134 if.end14: ; preds = %if.end11
138 declare signext i32 @fn2(...)
139 declare signext i32 @fn3(...)
140 declare signext i32 @fn4(...)