122b0220fd
The data layout strings do not have any effect on llc tests and will become misleadingly out of date as we continue to update the canonical data layout, so remove them from the tests. Differential Revision: https://reviews.llvm.org/D105842
31 lines
1.1 KiB
LLVM
31 lines
1.1 KiB
LLVM
; RUN: llc < %s -O0 -wasm-disable-explicit-locals -wasm-keep-registers | FileCheck %s
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; Regression test for bug 40172. The problem was that FastISel assumed
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; that CmpInst results did not need to be zero extended because
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; WebAssembly's compare instructions always return 0 or 1. But in this
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; test case FastISel falls back to DAG ISel, which combines away the
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; comparison, invalidating FastISel's assumption.
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target triple = "wasm32-unknown-unknown"
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; CHECK: i32.sub $[[BASE:[0-9]+]]=,
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; CHECK: local.copy $[[ARG:[0-9]+]]=, $0{{$}}
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; CHECK: i32.const $[[A0:[0-9]+]]=, 1{{$}}
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; CHECK: i32.and $[[A1:[0-9]+]]=, $[[ARG]], $[[A0]]{{$}}
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; CHECK: i32.store8 8($[[BASE]]), $[[A1]]{{$}}
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define void @test(i8 %byte) {
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%t = alloca { i8, i8 }, align 1
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%x4 = and i8 %byte, 1
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%x5 = icmp eq i8 %x4, 1
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%x6 = and i8 %byte, 2
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%x7 = icmp eq i8 %x6, 2
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%x8 = bitcast { i8, i8 }* %t to i8*
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%x9 = zext i1 %x5 to i8
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store i8 %x9, i8* %x8, align 1
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%x10 = getelementptr inbounds { i8, i8 }, { i8, i8 }* %t, i32 0, i32 1
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%x11 = zext i1 %x7 to i8
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store i8 %x11, i8* %x10, align 1
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ret void
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}
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