81 lines
2.9 KiB
LLVM
81 lines
2.9 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
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; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s
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; %ptr has a hint to %rdi in entry block, it also has a interference with %rdi
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; in block if.then. It should be split in cold block if.then.
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; Similarly %p2, %p3, %p4, %p5 and %p6 should also be split in cold block
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; if.then.
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define ptr @foo(ptr %ptr, i64 %p2, i64 %p3, i64 %p4, i64 %p5, i64 %p6) {
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; CHECK-LABEL: foo:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: testq %rdi, %rdi
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; CHECK-NEXT: je .LBB0_1
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; CHECK-NEXT: # %bb.2: # %if.end
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; CHECK-NEXT: incq %rdi
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; CHECK-NEXT: jmp qux@PLT # TAILCALL
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; CHECK-NEXT: .LBB0_1: # %if.then
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; CHECK-NEXT: pushq %r15
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; CHECK-NEXT: .cfi_def_cfa_offset 16
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; CHECK-NEXT: pushq %r14
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; CHECK-NEXT: .cfi_def_cfa_offset 24
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; CHECK-NEXT: pushq %r13
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; CHECK-NEXT: .cfi_def_cfa_offset 32
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; CHECK-NEXT: pushq %r12
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; CHECK-NEXT: .cfi_def_cfa_offset 40
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; CHECK-NEXT: pushq %rbx
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; CHECK-NEXT: .cfi_def_cfa_offset 48
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; CHECK-NEXT: .cfi_offset %rbx, -48
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; CHECK-NEXT: .cfi_offset %r12, -40
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; CHECK-NEXT: .cfi_offset %r13, -32
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; CHECK-NEXT: .cfi_offset %r14, -24
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; CHECK-NEXT: .cfi_offset %r15, -16
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; CHECK-NEXT: movq %rsi, %rbx
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; CHECK-NEXT: movq %rdx, %r14
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; CHECK-NEXT: movq %rcx, %r15
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; CHECK-NEXT: movq %r8, %r12
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; CHECK-NEXT: movq %r9, %r13
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; CHECK-NEXT: callq bar@PLT
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; CHECK-NEXT: movq %rbx, %rsi
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; CHECK-NEXT: movq %r14, %rdx
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; CHECK-NEXT: movq %r15, %rcx
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; CHECK-NEXT: movq %r12, %r8
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; CHECK-NEXT: movq %r13, %r9
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; CHECK-NEXT: movq %rax, %rdi
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; CHECK-NEXT: popq %rbx
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; CHECK-NEXT: .cfi_def_cfa_offset 40
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; CHECK-NEXT: popq %r12
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; CHECK-NEXT: .cfi_def_cfa_offset 32
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; CHECK-NEXT: popq %r13
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; CHECK-NEXT: .cfi_def_cfa_offset 24
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; CHECK-NEXT: popq %r14
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; CHECK-NEXT: .cfi_def_cfa_offset 16
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; CHECK-NEXT: popq %r15
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; CHECK-NEXT: .cfi_def_cfa_offset 8
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; CHECK-NEXT: .cfi_restore %rbx
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; CHECK-NEXT: .cfi_restore %r12
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; CHECK-NEXT: .cfi_restore %r13
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; CHECK-NEXT: .cfi_restore %r14
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; CHECK-NEXT: .cfi_restore %r15
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; CHECK-NEXT: incq %rdi
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; CHECK-NEXT: jmp qux@PLT # TAILCALL
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entry:
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%tobool.not = icmp eq ptr %ptr, null
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br i1 %tobool.not, label %if.then, label %if.end, !prof !5
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if.then: ; preds = %entry
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%call = tail call ptr @bar(ptr %ptr, i64 %p2, i64 %p3, i64 %p4, i64 %p5, i64 %p6)
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br label %if.end
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if.end: ; preds = %if.then, %entry
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%ptr.addr.0 = phi ptr [ %call, %if.then ], [ %ptr, %entry ]
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%incdec.ptr = getelementptr inbounds i8, ptr %ptr.addr.0, i64 1
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%call2 = tail call ptr @qux(ptr %incdec.ptr, i64 %p2, i64 %p3, i64 %p4, i64 %p5, i64 %p6)
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ret ptr %call2
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}
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!5 = !{!"branch_weights", i32 1, i32 2000}
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declare ptr @bar(ptr, i64, i64, i64, i64, i64)
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declare ptr @qux(ptr, i64, i64, i64, i64, i64)
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