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llvm-mirror/test/CodeGen/X86/code-model-elf-memset.ll
Wang, Pengfei c275334e12 [CodeGen][X86] Remove unused trivial check-prefixes from all CodeGen/X86 directory.
I had manually removed unused prefixes from CodeGen/X86 directory for more than 100 tests.
I checked the change history for each of them at the beginning, and then I mainly focused on the format since I found all of the unused prefixes were result from either insensible copy or residuum after functional update.
I think it's OK to remove the remaining X86 tests by script now. I wrote a rough script which works for me in most tests. I put it in llvm/utils temporarily for review and hope it may help other components owners.
The tests in this patch are all generated by the tool and checked by update tool for the autogenerated tests. I skimmed them and checked about 30 tests and didn't find any unexpected changes.

Reviewed By: mtrofin, MaskRay

Differential Revision: https://reviews.llvm.org/D91496
2020-11-16 09:45:55 +08:00

92 lines
3.3 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; Run with --no_x86_scrub_rip because we care a lot about how globals are
; accessed in the code model.
; Memset is interesting because it is an ExternalSymbol reference instead of a
; GlobalValue. Make sure we do the right GOT load for 64-bit large.
; RUN: llc < %s -relocation-model=pic -code-model=small | FileCheck %s --check-prefix=SMALL-PIC
; RUN: llc < %s -relocation-model=pic -code-model=medium | FileCheck %s --check-prefix=MEDIUM-PIC
; RUN: llc < %s -relocation-model=pic -code-model=large | FileCheck %s --check-prefix=LARGE-PIC
; Generated from this C source:
;
; int main() {
; unsigned int a[100] = {0};
; return 0;
; }
; ModuleID = 'model.c'
source_filename = "model.c"
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64--linux"
declare void @llvm.memset.p0i8.i64(i8* nocapture writeonly, i8, i64, i1) #1
define i32 @main() #0 {
; SMALL-PIC-LABEL: main:
; SMALL-PIC: # %bb.0: # %entry
; SMALL-PIC-NEXT: subq $424, %rsp # imm = 0x1A8
; SMALL-PIC-NEXT: .cfi_def_cfa_offset 432
; SMALL-PIC-NEXT: movl $0, {{[0-9]+}}(%rsp)
; SMALL-PIC-NEXT: leaq {{[0-9]+}}(%rsp), %rdi
; SMALL-PIC-NEXT: movl $400, %edx # imm = 0x190
; SMALL-PIC-NEXT: xorl %esi, %esi
; SMALL-PIC-NEXT: callq memset@PLT
; SMALL-PIC-NEXT: xorl %eax, %eax
; SMALL-PIC-NEXT: addq $424, %rsp # imm = 0x1A8
; SMALL-PIC-NEXT: .cfi_def_cfa_offset 8
; SMALL-PIC-NEXT: retq
;
; MEDIUM-PIC-LABEL: main:
; MEDIUM-PIC: # %bb.0: # %entry
; MEDIUM-PIC-NEXT: subq $424, %rsp # imm = 0x1A8
; MEDIUM-PIC-NEXT: .cfi_def_cfa_offset 432
; MEDIUM-PIC-NEXT: movl $0, {{[0-9]+}}(%rsp)
; MEDIUM-PIC-NEXT: leaq {{[0-9]+}}(%rsp), %rdi
; MEDIUM-PIC-NEXT: movl $400, %edx # imm = 0x190
; MEDIUM-PIC-NEXT: xorl %esi, %esi
; MEDIUM-PIC-NEXT: callq memset@PLT
; MEDIUM-PIC-NEXT: xorl %eax, %eax
; MEDIUM-PIC-NEXT: addq $424, %rsp # imm = 0x1A8
; MEDIUM-PIC-NEXT: .cfi_def_cfa_offset 8
; MEDIUM-PIC-NEXT: retq
;
; LARGE-PIC-LABEL: main:
; LARGE-PIC: # %bb.0: # %entry
; LARGE-PIC-NEXT: subq $424, %rsp # imm = 0x1A8
; LARGE-PIC-NEXT: .cfi_def_cfa_offset 432
; LARGE-PIC-NEXT: .L0$pb:
; LARGE-PIC-NEXT: leaq .L0${{.*}}(%rip), %rax
; LARGE-PIC-NEXT: movabsq $_GLOBAL_OFFSET_TABLE_-.L0$pb, %rcx
; LARGE-PIC-NEXT: addq %rax, %rcx
; LARGE-PIC-NEXT: movl $0, {{[0-9]+}}(%rsp)
; LARGE-PIC-NEXT: leaq {{[0-9]+}}(%rsp), %rdi
; LARGE-PIC-NEXT: movabsq $memset@GOT, %rax
; LARGE-PIC-NEXT: movl $400, %edx # imm = 0x190
; LARGE-PIC-NEXT: xorl %esi, %esi
; LARGE-PIC-NEXT: callq *(%rcx,%rax)
; LARGE-PIC-NEXT: xorl %eax, %eax
; LARGE-PIC-NEXT: addq $424, %rsp # imm = 0x1A8
; LARGE-PIC-NEXT: .cfi_def_cfa_offset 8
; LARGE-PIC-NEXT: retq
entry:
%retval = alloca i32, align 4
%a = alloca [100 x i32], align 16
store i32 0, i32* %retval, align 4
%0 = bitcast [100 x i32]* %a to i8*
call void @llvm.memset.p0i8.i64(i8* align 16 %0, i8 0, i64 400, i1 false)
ret i32 0
}
attributes #0 = { noinline nounwind uwtable }
attributes #0 = { argmemonly nounwind uwtable }
!llvm.module.flags = !{!0, !1, !2}
!llvm.ident = !{!3}
!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 7, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{!"clang version 7.0.0 "}