1 ; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s
3 ; These tests make sure the compiler is optimizing branches using predicates
4 ; when it is legal to do so.
7 ; CHECK: PRED_SET{{[EGN][ET]*}}_INT Pred,
8 ; CHECK: LSHL T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}, 1, 0(0.000000e+00) Pred_sel
9 define void @simple_if(i32 addrspace(1)* %out, i32 %in) {
11 %0 = icmp sgt i32 %in, 0
12 br i1 %0, label %IF, label %ENDIF
19 %2 = phi i32 [ %in, %entry ], [ %1, %IF ]
20 store i32 %2, i32 addrspace(1)* %out
24 ; CHECK: @simple_if_else
25 ; CHECK: PRED_SET{{[EGN][ET]*}}_INT Pred,
26 ; CHECK: LSH{{[LR] T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}, 1, 0(0.000000e+00) Pred_sel
27 ; CHECK: LSH{{[LR] T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}, 1, 0(0.000000e+00) Pred_sel
28 define void @simple_if_else(i32 addrspace(1)* %out, i32 %in) {
30 %0 = icmp sgt i32 %in, 0
31 br i1 %0, label %IF, label %ELSE
42 %3 = phi i32 [ %1, %IF ], [ %2, %ELSE ]
43 store i32 %3, i32 addrspace(1)* %out
48 ; CHECK: IF_PREDICATE_SET
49 ; CHECK: PRED_SET{{[EGN][ET]*}}_INT Pred,
50 ; CHECK: LSHL T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}, 1, 0(0.000000e+00) Pred_sel
52 define void @nested_if(i32 addrspace(1)* %out, i32 %in) {
54 %0 = icmp sgt i32 %in, 0
55 br i1 %0, label %IF0, label %ENDIF
59 %2 = icmp sgt i32 %1, 0
60 br i1 %2, label %IF1, label %ENDIF
67 %4 = phi i32 [%in, %entry], [%1, %IF0], [%3, %IF1]
68 store i32 %4, i32 addrspace(1)* %out
72 ; CHECK: @nested_if_else
73 ; CHECK: IF_PREDICATE_SET
74 ; CHECK: PRED_SET{{[EGN][ET]*}}_INT Pred,
75 ; CHECK: LSH{{[LR] T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}, 1, 0(0.000000e+00) Pred_sel
76 ; CHECK: LSH{{[LR] T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}, 1, 0(0.000000e+00) Pred_sel
78 define void @nested_if_else(i32 addrspace(1)* %out, i32 %in) {
80 %0 = icmp sgt i32 %in, 0
81 br i1 %0, label %IF0, label %ENDIF
85 %2 = icmp sgt i32 %1, 0
86 br i1 %2, label %IF1, label %ELSE1
97 %5 = phi i32 [%in, %entry], [%3, %IF1], [%4, %ELSE1]
98 store i32 %5, i32 addrspace(1)* %out