forked from OSchip/llvm-project
40 lines
1.1 KiB
LLVM
40 lines
1.1 KiB
LLVM
; RUN: opt < %s -indvars -S | FileCheck %s
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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define void @test(i64* %arg) unnamed_addr align 2 {
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bb:
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switch i64 undef, label %bb1 [
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]
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bb1: ; preds = %bb
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br label %bb2
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bb2: ; preds = %bb6, %bb1
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%tmp = phi i64* [%arg, %bb1 ], [ %tmp7, %bb6 ]
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switch i2 undef, label %bb6 [
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i2 1, label %bb5
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i2 -2, label %bb3
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i2 -1, label %bb3
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]
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bb3: ; preds = %bb2, %bb2
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%tmp4 = call fastcc i32* @wobble(i64* nonnull %tmp, i32* null)
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%tmp5 = load i32, i32* %tmp4 , align 8
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br label %bb6
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bb5: ; preds = %bb2
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unreachable
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bb6: ; preds = %bb3, %bb2
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%tmp7 = load i64*, i64** undef, align 8
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br label %bb2
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}
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declare i32* @wobble(i64*, i32* returned)
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; Should not fail when SCEV is fold to ConstantPointerNull
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; CHECK-LABEL: void @test
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; CHECK: load i32, i32* %{{[a-zA-Z$._0-9]+}}
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