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26 lines
744 B
26 lines
744 B
4 months ago
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; RUN: llc %s -o - -verify-machineinstrs -fast-isel=true | FileCheck %s
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target datalayout = "e-m:o-p:32:32-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32"
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target triple = "thumbv7-apple-ios8.0.0"
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; When materializing the '2' for the shifts below, the second shift kills the vreg
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; we materialize in to. However, the first shift was also killing that vreg.
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; This fails the machine verifier because the second use then thinks its reading an
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; undefined register.
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; CHECK: lsr.w
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; CHECK: lsr.w
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declare void @foo(i32, i32)
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; Function Attrs: minsize
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define i32 @test(i32 %tmp3, i32 %tmp9) #0 {
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bb:
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%tmp4 = lshr i32 %tmp3, 2
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%tmp10 = lshr i32 %tmp9, 2
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call void @foo(i32 %tmp10, i32 %tmp4)
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ret i32 undef
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}
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attributes #0 = { minsize }
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