forked from OSchip/llvm-project
66 lines
2.2 KiB
LLVM
66 lines
2.2 KiB
LLVM
; RUN: llc < %s | FileCheck %s
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target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
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target triple = "thumbv7-unknown-linux-gnueabihf"
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%Target = type { %Target*, %List* }
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%List = type { i32, i32* }
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; The entry block should be the first block of the function.
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; CHECK-LABEL: foo
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; CHECK: %entry
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; CHECK: %for.body
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; CHECK: %for.inc
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; CHECK: %if.then
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; CHECK: %for.cond.i
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; CHECK: %for.body.i
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; CHECK: %return
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define i1 @foo(%Target** %ha, i32 %he) !prof !39 {
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entry:
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%TargetPtr = load %Target*, %Target** %ha, align 4
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%cmp1 = icmp eq %Target* %TargetPtr, null
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br i1 %cmp1, label %return, label %for.body, !prof !50
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for.body:
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%TargetPhi = phi %Target* [ %NextPtr, %for.inc ], [ %TargetPtr, %entry ]
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%ListAddr = getelementptr inbounds %Target, %Target* %TargetPhi, i32 0, i32 1
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%ListPtr = load %List*, %List** %ListAddr, align 4
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%cmp2 = icmp eq %List* %ListPtr, null
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br i1 %cmp2, label %for.inc, label %if.then, !prof !59
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if.then:
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%lenAddr = getelementptr inbounds %List, %List* %ListPtr, i32 0, i32 0
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%len = load i32, i32* %lenAddr, align 4
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%ptr = getelementptr inbounds %List, %List* %ListPtr, i32 0, i32 1
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%ptr2 = load i32*, i32** %ptr, align 4
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br label %for.cond.i
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for.cond.i:
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%i = phi i32 [ %len, %if.then ], [ %index, %for.body.i ]
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%index = add nsw i32 %i, -1
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%cmp3 = icmp sgt i32 %i, 0
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br i1 %cmp3, label %for.body.i, label %for.inc, !prof !75
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for.body.i:
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%ptr3 = getelementptr inbounds i32, i32* %ptr2, i32 %index
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%data = load i32, i32* %ptr3, align 4
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%cmp4 = icmp eq i32 %data, %he
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br i1 %cmp4, label %return, label %for.cond.i, !prof !79
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for.inc:
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%NextAddr = getelementptr inbounds %Target, %Target* %TargetPhi, i32 0, i32 0
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%NextPtr = load %Target*, %Target** %NextAddr, align 4
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%cmp5 = icmp eq %Target* %NextPtr, null
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br i1 %cmp5, label %return, label %for.body, !prof !50
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return:
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%retval = phi i1 [ false, %entry ], [ true, %for.body.i ], [ false, %for.inc ]
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ret i1 %retval
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}
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!39 = !{!"function_entry_count", i64 226}
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!50 = !{!"branch_weights", i32 451, i32 1}
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!59 = !{!"branch_weights", i32 1502, i32 1}
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!75 = !{!"branch_weights", i32 301, i32 1}
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!79 = !{!"branch_weights", i32 1, i32 301}
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