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080efb8cea
consistently for deleting branches. In addition to being slightly more readable, this makes SimplifyCFG a bit better about cleaning up after itself when it makes conditions unused. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61100 91177308-0d34-0410-b5e6-96231b3b80d8
47 lines
1.2 KiB
LLVM
47 lines
1.2 KiB
LLVM
; RUN: llvm-as < %s | opt -simplifycfg | llvm-dis | not grep icmp
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; ModuleID = '/tmp/x.bc'
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
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target triple = "i686-pc-linux-gnu"
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define i32 @x(i32 %x) {
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entry:
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%cmp = icmp eq i32 %x, 8 ; <i1> [#uses=1]
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br i1 %cmp, label %ifthen, label %ifend
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ifthen: ; preds = %entry
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%call = call i32 (...)* @foo() ; <i32> [#uses=0]
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br label %ifend
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ifend: ; preds = %ifthen, %entry
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%cmp2 = icmp ne i32 %x, 8 ; <i1> [#uses=1]
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br i1 %cmp2, label %ifthen3, label %ifend5
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ifthen3: ; preds = %ifend
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%call4 = call i32 (...)* @foo() ; <i32> [#uses=0]
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br label %ifend5
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ifend5: ; preds = %ifthen3, %ifend
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%cmp7 = icmp eq i32 %x, 9 ; <i1> [#uses=1]
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br i1 %cmp7, label %ifthen8, label %ifend10
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ifthen8: ; preds = %ifend5
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%call9 = call i32 (...)* @bar() ; <i32> [#uses=0]
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br label %ifend10
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ifend10: ; preds = %ifthen8, %ifend5
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%cmp12 = icmp ne i32 %x, 9 ; <i1> [#uses=1]
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br i1 %cmp12, label %ifthen13, label %ifend15
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ifthen13: ; preds = %ifend10
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%call14 = call i32 (...)* @bar() ; <i32> [#uses=0]
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br label %ifend15
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ifend15: ; preds = %ifthen13, %ifend10
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ret i32 0
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}
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declare i32 @foo(...)
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declare i32 @bar(...)
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