xref: /llvm-project/llvm/test/CodeGen/RISCV/global-merge-minsize-smalldata-nonzero.ll (revision 3787fbf0402b4e03e316c13231f8873769701250)
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc -mtriple=riscv64 -verify-machineinstrs < %s \
3; RUN:   | FileCheck %s -check-prefix=SMALL-DATA
4; RUN: llc -mtriple=riscv64 -global-merge-min-data-size=0 -verify-machineinstrs < %s \
5; RUN:   | FileCheck %s -check-prefix=MINSIZE
6
7@ig1 = internal global i32 0, align 4
8@ig2 = internal global i32 0, align 4
9
10@eg1 = dso_local global i32 0, align 4
11@eg2 = dso_local global i32 0, align 4
12
13; This test shows that GlobalDataMinSize is set to SmallDataLimit + 1 when
14; SmallDataLimit module flag is set as non-zero, and that global-merge-min-data-size
15; overrides the small data limit.
16
17define void @f1(i32 %a) nounwind {
18; SMALL-DATA-LABEL: f1:
19; SMALL-DATA:       # %bb.0:
20; SMALL-DATA-NEXT:    lui a1, %hi(ig1)
21; SMALL-DATA-NEXT:    sw a0, %lo(ig1)(a1)
22; SMALL-DATA-NEXT:    lui a1, %hi(ig2)
23; SMALL-DATA-NEXT:    sw a0, %lo(ig2)(a1)
24; SMALL-DATA-NEXT:    lui a1, %hi(eg1)
25; SMALL-DATA-NEXT:    sw a0, %lo(eg1)(a1)
26; SMALL-DATA-NEXT:    lui a1, %hi(eg2)
27; SMALL-DATA-NEXT:    sw a0, %lo(eg2)(a1)
28; SMALL-DATA-NEXT:    ret
29;
30; MINSIZE-LABEL: f1:
31; MINSIZE:       # %bb.0:
32; MINSIZE-NEXT:    lui a1, %hi(.L_MergedGlobals)
33; MINSIZE-NEXT:    sw a0, %lo(.L_MergedGlobals)(a1)
34; MINSIZE-NEXT:    addi a1, a1, %lo(.L_MergedGlobals)
35; MINSIZE-NEXT:    sw a0, 4(a1)
36; MINSIZE-NEXT:    sw a0, 8(a1)
37; MINSIZE-NEXT:    sw a0, 12(a1)
38; MINSIZE-NEXT:    ret
39  store i32 %a, ptr @ig1, align 4
40  store i32 %a, ptr @ig2, align 4
41  store i32 %a, ptr @eg1, align 4
42  store i32 %a, ptr @eg2, align 4
43  ret void
44}
45
46
47!llvm.module.flags = !{!0}
48!0 = !{i32 8, !"SmallDataLimit", i32 8}
49