30 lines
939 B
LLVM
30 lines
939 B
LLVM
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; RUN: llc %s -o - -fast-isel=true -O1 -verify-machineinstrs | FileCheck %s
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target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128"
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target triple = "arm64-apple-ios8.0.0"
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; The machine verifier was asserting on this test because the AND instruction was
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; sunk below the test which killed %tmp340.
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; The kill flags on the test had to be cleared because the AND was going to read
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; registers in a BB after the test instruction.
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; CHECK: %bb343
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; CHECK: and
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define i32 @test(i32* %ptr) {
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bb:
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br label %.thread
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.thread: ; preds = %.thread, %bb
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%loc = phi i32 [ %next_iter, %.thread ], [ 0, %bb ]
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%next_iter = lshr i32 %loc, 1
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%tmp340 = sub i32 %loc, 1
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%tmp341 = and i32 %tmp340, 1
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%tmp342 = icmp eq i32 %tmp341, 0
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br i1 %tmp342, label %bb343, label %.thread
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bb343: ; preds = %.thread
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store i32 %tmp341, i32* %ptr, align 4
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ret i32 -1
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}
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