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d3fa093dc9
v2: continue iterating through the rest of the bb
use for loop
v3: initialize FlattenCFG pass in ScalarOps
add test
v4: split off initializing flattencfg to a separate patch
add comment
Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215574 91177308-0d34-0410-b5e6-96231b3b80d8
27 lines
710 B
LLVM
27 lines
710 B
LLVM
; RUN: opt -flattencfg -S < %s | FileCheck %s
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; This test checks whether the pass completes without a crash.
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; The code is not transformed in any way
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;
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; CHECK-LABEL: @test_not_crash
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define void @test_not_crash(i32 %in_a) #0 {
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entry:
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%cmp0 = icmp eq i32 %in_a, -1
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%cmp1 = icmp ne i32 %in_a, 0
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%cond0 = and i1 %cmp0, %cmp1
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br i1 %cond0, label %b0, label %b1
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b0: ; preds = %entry
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%cmp2 = icmp eq i32 %in_a, 0
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%cmp3 = icmp ne i32 %in_a, 1
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%cond1 = or i1 %cmp2, %cmp3
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br i1 %cond1, label %exit, label %b1
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b1: ; preds = %entry, %b0
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br label %exit
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exit: ; preds = %entry, %b0, %b1
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ret void
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}
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