forked from OSchip/llvm-project
88 lines
2.3 KiB
YAML
88 lines
2.3 KiB
YAML
# RUN: llc -mtriple=x86_64-apple-macosx10.12.0 -O3 -run-pass=block-placement -o - %s | FileCheck %s
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--- |
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; ModuleID = 'test.ll'
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source_filename = "test.ll"
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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declare void @stub(i32*)
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define i32 @f(i32* %ptr, i1 %cond) {
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entry:
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br i1 %cond, label %left, label %right
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left: ; preds = %entry
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%is_null = icmp eq i32* %ptr, null
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br i1 %is_null, label %null, label %not_null, !prof !0, !make.implicit !1
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not_null: ; preds = %left
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%val = load i32, i32* %ptr
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ret i32 %val
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null: ; preds = %left
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call void @stub(i32* %ptr)
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unreachable
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right: ; preds = %entry
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call void @stub(i32* null)
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unreachable
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}
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; Function Attrs: nounwind
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declare void @llvm.stackprotector(i8*, i8**) #0
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attributes #0 = { nounwind }
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!0 = !{!"branch_weights", i32 1048575, i32 1}
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!1 = !{}
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...
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---
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# CHECK: name: f
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name: f
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alignment: 4
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tracksRegLiveness: true
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liveins:
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- { reg: '$rdi' }
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- { reg: '$esi' }
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# CHECK: $eax = FAULTING_OP 1, %bb.3, 1684, killed $rdi, 1, $noreg, 0, $noreg :: (load 4 from %ir.ptr)
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# CHECK-NEXT: JMP_1 %bb.2
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# CHECK: bb.3.null:
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# CHECK: bb.4.right:
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# CHECK: bb.2.not_null:
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body: |
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bb.0.entry:
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successors: %bb.1(0x7ffff800), %bb.3(0x00000800)
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liveins: $esi, $rdi
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frame-setup PUSH64r undef $rax, implicit-def $rsp, implicit $rsp
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CFI_INSTRUCTION def_cfa_offset 16
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TEST8ri $sil, 1, implicit-def $eflags, implicit killed $esi
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JCC_1 %bb.3, 4, implicit killed $eflags
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bb.1.left:
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successors: %bb.2(0x7ffff800), %bb.4(0x00000800)
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liveins: $rdi
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$eax = FAULTING_OP 1, %bb.2, 1684, killed $rdi, 1, $noreg, 0, $noreg :: (load 4 from %ir.ptr)
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JMP_1 %bb.4
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bb.4.not_null:
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liveins: $rdi, $eax
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$rcx = POP64r implicit-def $rsp, implicit $rsp
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RETQ $eax
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bb.2.null:
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liveins: $rdi
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CALL64pcrel32 @stub, csr_64, implicit $rsp, implicit $rdi, implicit-def $rsp
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bb.3.right:
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dead $edi = XOR32rr undef $edi, undef $edi, implicit-def dead $eflags, implicit-def $rdi
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CALL64pcrel32 @stub, csr_64, implicit $rsp, implicit $rdi, implicit-def $rsp
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...
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