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llvm-mirror/test/CodeGen/X86/use-add-flags.ll
Roman Lebedev 18451cc4a4 [NFC][X86][Codegen] Megacommit: mass-regenerate all check lines that were already autogenerated
The motivation is that the update script has at least two deviations
(`<...>@GOT`/`<...>@PLT`/ and not hiding pointer arithmetics) from
what pretty much all the checklines were generated with,
and most of the tests are still not updated, so each time one of the
non-up-to-date tests is updated to see the effect of the code change,
there is a lot of noise. Instead of having to deal with that each
time, let's just deal with everything at once.

This has been done via:
```
cd llvm-project/llvm/test/CodeGen/X86
grep -rl "; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py" | xargs -L1 <...>/llvm-project/llvm/utils/update_llc_test_checks.py --llc-binary <...>/llvm-project/build/bin/llc
```

Not all tests were regenerated, however.
2021-06-11 23:57:02 +03:00

102 lines
2.5 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s --check-prefix=LNX
; RUN: llc < %s -mtriple=x86_64-win32 | FileCheck %s --check-prefix=WIN
; Reuse the flags value from the add instructions instead of emitting separate
; testl instructions.
; Use the flags on the add.
define i32 @test1(i32* %x, i32 %y, i32 %a, i32 %b) nounwind {
; LNX-LABEL: test1:
; LNX: # %bb.0:
; LNX-NEXT: movl %edx, %eax
; LNX-NEXT: addl (%rdi), %esi
; LNX-NEXT: cmovnsl %ecx, %eax
; LNX-NEXT: retq
;
; WIN-LABEL: test1:
; WIN: # %bb.0:
; WIN-NEXT: movl %r8d, %eax
; WIN-NEXT: addl (%rcx), %edx
; WIN-NEXT: cmovnsl %r9d, %eax
; WIN-NEXT: retq
%tmp2 = load i32, i32* %x, align 4 ; <i32> [#uses=1]
%tmp4 = add i32 %tmp2, %y ; <i32> [#uses=1]
%tmp5 = icmp slt i32 %tmp4, 0 ; <i1> [#uses=1]
%tmp.0 = select i1 %tmp5, i32 %a, i32 %b ; <i32> [#uses=1]
ret i32 %tmp.0
}
declare void @foo(i32)
; Don't use the flags result of the and here, since the and has no
; other use. A simple test is better.
define void @test2(i32 %x) nounwind {
; LNX-LABEL: test2:
; LNX: # %bb.0:
; LNX-NEXT: testb $16, %dil
; LNX-NEXT: jne .LBB1_2
; LNX-NEXT: # %bb.1: # %true
; LNX-NEXT: pushq %rax
; LNX-NEXT: callq foo@PLT
; LNX-NEXT: popq %rax
; LNX-NEXT: .LBB1_2: # %false
; LNX-NEXT: retq
;
; WIN-LABEL: test2:
; WIN: # %bb.0:
; WIN-NEXT: subq $40, %rsp
; WIN-NEXT: testb $16, %cl
; WIN-NEXT: jne .LBB1_2
; WIN-NEXT: # %bb.1: # %true
; WIN-NEXT: callq foo
; WIN-NEXT: .LBB1_2: # %false
; WIN-NEXT: addq $40, %rsp
; WIN-NEXT: retq
%y = and i32 %x, 16
%t = icmp eq i32 %y, 0
br i1 %t, label %true, label %false
true:
call void @foo(i32 %x)
ret void
false:
ret void
}
; Do use the flags result of the and here, since the and has another use.
define void @test3(i32 %x) nounwind {
; LNX-LABEL: test3:
; LNX: # %bb.0:
; LNX-NEXT: andl $16, %edi
; LNX-NEXT: jne .LBB2_2
; LNX-NEXT: # %bb.1: # %true
; LNX-NEXT: pushq %rax
; LNX-NEXT: callq foo@PLT
; LNX-NEXT: popq %rax
; LNX-NEXT: .LBB2_2: # %false
; LNX-NEXT: retq
;
; WIN-LABEL: test3:
; WIN: # %bb.0:
; WIN-NEXT: subq $40, %rsp
; WIN-NEXT: andl $16, %ecx
; WIN-NEXT: jne .LBB2_2
; WIN-NEXT: # %bb.1: # %true
; WIN-NEXT: callq foo
; WIN-NEXT: .LBB2_2: # %false
; WIN-NEXT: addq $40, %rsp
; WIN-NEXT: retq
%y = and i32 %x, 16
%t = icmp eq i32 %y, 0
br i1 %t, label %true, label %false
true:
call void @foo(i32 %y)
ret void
false:
ret void
}