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llvm-mirror/test/CodeGen/X86/critical-anti-dep-breaker.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

59 lines
2.4 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -relocation-model=pic -post-RA-scheduler=1 -break-anti-dependencies=critical | FileCheck %s
; PR20308 ( http://llvm.org/bugs/show_bug.cgi?id=20308 ).
; The critical-anti-dependency-breaker must not use register def information from a kill inst.
; This test case expects such an instruction to appear as a comment with def info for RDI.
; There is an anti-dependency (WAR) hazard using RAX using default reg allocation and scheduling.
; The post-RA-scheduler and critical-anti-dependency breaker can eliminate that hazard using R10.
; That is the first free register that isn't used as a param in the call to "@Image".
@PartClass = external global i32
@NullToken = external global i64
define i32 @Part_Create(i64* %Anchor, i32 %TypeNum, i32 %F, i32 %Z, i32* %Status, i64* %PartTkn) {
; CHECK-LABEL: Part_Create:
; CHECK: # %bb.0:
; CHECK-NEXT: pushq %rbp
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: pushq %rbx
; CHECK-NEXT: .cfi_def_cfa_offset 24
; CHECK-NEXT: subq $24, %rsp
; CHECK-NEXT: .cfi_def_cfa_offset 48
; CHECK-NEXT: .cfi_offset %rbx, -24
; CHECK-NEXT: .cfi_offset %rbp, -16
; CHECK-NEXT: movq NullToken@GOTPCREL(%rip), %rax
; CHECK-NEXT: movq PartClass@GOTPCREL(%rip), %r10
; CHECK-NEXT: xorl %edx, %edx
; CHECK-NEXT: xorl %ecx, %ecx
; CHECK-NEXT: movq %rdi, %rbx
; CHECK-NEXT: movq (%rax), %rax
; CHECK-NEXT: movl (%r10), %ebp
; CHECK-NEXT: movq %rax, {{[0-9]+}}(%rsp)
; CHECK-NEXT: leaq {{[0-9]+}}(%rsp), %rax
; CHECK-NEXT: movl %ebp, %esi
; CHECK-NEXT: movq %rax, (%rsp)
; CHECK-NEXT: callq Image@PLT
; CHECK-NEXT: movq %rbx, %rdi
; CHECK-NEXT: callq Create@PLT
; CHECK-NEXT: movl %ebp, %eax
; CHECK-NEXT: addq $24, %rsp
; CHECK-NEXT: .cfi_def_cfa_offset 24
; CHECK-NEXT: popq %rbx
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: popq %rbp
; CHECK-NEXT: .cfi_def_cfa_offset 8
; CHECK-NEXT: retq
%PartObj = alloca i64*, align 8
%Vchunk = alloca i64, align 8
%1 = load i64, i64* @NullToken, align 4
store i64 %1, i64* %Vchunk, align 8
%2 = load i32, i32* @PartClass, align 4
call i32 @Image(i64* %Anchor, i32 %2, i32 0, i32 0, i32* %Status, i64* %PartTkn, i64** %PartObj)
call i32 @Create(i64* %Anchor)
ret i32 %2
}
declare i32 @Image(i64*, i32, i32, i32, i32*, i64*, i64**)
declare i32 @Create(i64*)