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4c8bd4af88
To facilitate this, add a new hidden command-line option to disable the explicit-locals pass. That causes llc to emit invalid code that doesn't have all locals converted to get_local/set_local, however it simplifies testwriting in many cases. llvm-svn: 296540
49 lines
1.2 KiB
LLVM
49 lines
1.2 KiB
LLVM
; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -disable-wasm-explicit-locals -verify-machineinstrs | FileCheck %s
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; Test that phis are lowered.
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target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
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target triple = "wasm32-unknown-unknown-wasm"
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; Basic phi triangle.
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; CHECK-LABEL: test0:
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; CHECK: return $0
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; CHECK: div_s $push[[NUM0:[0-9]+]]=, $0, $pop[[NUM1:[0-9]+]]{{$}}
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; CHECK: return $pop[[NUM0]]{{$}}
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define i32 @test0(i32 %p) {
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entry:
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%t = icmp slt i32 %p, 0
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br i1 %t, label %true, label %done
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true:
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%a = sdiv i32 %p, 3
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br label %done
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done:
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%s = phi i32 [ %a, %true ], [ %p, %entry ]
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ret i32 %s
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}
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; Swap phis.
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; CHECK-LABEL: test1:
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; CHECK: .LBB1_1:
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; CHECK: copy_local $[[NUM0:[0-9]+]]=, $[[NUM1:[0-9]+]]{{$}}
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; CHECK: copy_local $[[NUM1]]=, $[[NUM2:[0-9]+]]{{$}}
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; CHECK: copy_local $[[NUM2]]=, $[[NUM0]]{{$}}
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define i32 @test1(i32 %n) {
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entry:
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br label %loop
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loop:
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%a = phi i32 [ 0, %entry ], [ %b, %loop ]
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%b = phi i32 [ 1, %entry ], [ %a, %loop ]
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%i = phi i32 [ 0, %entry ], [ %i.next, %loop ]
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%i.next = add i32 %i, 1
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%t = icmp slt i32 %i.next, %n
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br i1 %t, label %loop, label %exit
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exit:
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ret i32 %a
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}
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