forked from OSchip/llvm-project
88 lines
2.4 KiB
YAML
88 lines
2.4 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.null, 1684, killed %rdi, 1, _, 0, _ :: (load 4 from %ir.ptr)
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# CHECK-NEXT: JMP_1 %bb.2.not_null
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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.left(0x7ffff800), %bb.3.right(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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JE_1 %bb.3.right, implicit killed %eflags
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bb.1.left:
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successors: %bb.2.null(0x7ffff800), %bb.4.not_null(0x00000800)
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liveins: %rdi
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%eax = FAULTING_OP 1, %bb.2.null, 1684, killed %rdi, 1, _, 0, _ :: (load 4 from %ir.ptr)
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JMP_1 %bb.4.not_null
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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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