xref: /llvm-project/llvm/test/Analysis/CostModel/SystemZ/cmp-mem.ll (revision 68c50b111d74afb9489cf97770fa917d0a1c7f77)
14178e334SSimon Pilgrim; RUN: opt < %s -passes="print<cost-model>" 2>&1 -disable-output -mtriple=systemz-unknown -mcpu=z13 | FileCheck %s
2011a503fSJonas Paulsson;
3011a503fSJonas Paulsson; Test costs for i8 and i16 comparisons against memory with a small immediate.
4011a503fSJonas Paulsson
5*68c50b11SNikita Popovdefine i32 @fun0(ptr %Src, ptr %Dst, i8 %Val) {
615ba588dSArthur Eubanks; CHECK: function 'fun0'
7*68c50b11SNikita Popov; CHECK: Cost Model: Found an estimated cost of 0 for instruction:   %Ld = load i8, ptr %Src
8011a503fSJonas Paulsson; CHECK: Cost Model: Found an estimated cost of 1 for instruction:   %Cmp = icmp eq i8 %Ld, 123
9011a503fSJonas Paulsson; CHECK: Cost Model: Found an estimated cost of 2 for instruction:   %Ret = zext i1 %Cmp to i32
102596da31SSam Parker; CHECK: Cost Model: Found an estimated cost of 1 for instruction:   ret i32 %Ret
11*68c50b11SNikita Popov  %Ld = load i8, ptr %Src
12011a503fSJonas Paulsson  %Cmp = icmp eq i8 %Ld, 123
13011a503fSJonas Paulsson  %Ret = zext i1 %Cmp to i32
14011a503fSJonas Paulsson  ret i32 %Ret
15011a503fSJonas Paulsson}
16011a503fSJonas Paulsson
17*68c50b11SNikita Popovdefine i32 @fun1(ptr %Src, ptr %Dst, i16 %Val) {
1815ba588dSArthur Eubanks; CHECK: function 'fun1'
19*68c50b11SNikita Popov; CHECK: Cost Model: Found an estimated cost of 0 for instruction:   %Ld = load i16, ptr %Src
20011a503fSJonas Paulsson; CHECK: Cost Model: Found an estimated cost of 1 for instruction:   %Cmp = icmp eq i16
21011a503fSJonas Paulsson; CHECK: Cost Model: Found an estimated cost of 2 for instruction:   %Ret = zext i1 %Cmp to i32
222596da31SSam Parker; CHECK: Cost Model: Found an estimated cost of 1 for instruction:   ret i32 %Ret
23*68c50b11SNikita Popov  %Ld = load i16, ptr %Src
24011a503fSJonas Paulsson  %Cmp = icmp eq i16 %Ld, 1234
25011a503fSJonas Paulsson  %Ret = zext i1 %Cmp to i32
26011a503fSJonas Paulsson  ret i32 %Ret
27011a503fSJonas Paulsson}
28