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llvm-mirror/test/CodeGen/WebAssembly/phi.ll
Thomas Lively 81bb5f99ad [WebAssembly] Remove datalayout strings from llc tests
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misleadingly out of date as we continue to update the canonical data layout, so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
2021-07-14 11:17:08 -07:00

47 lines
1.1 KiB
LLVM

; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -verify-machineinstrs | FileCheck %s
; Test that phis are lowered.
target triple = "wasm32-unknown-unknown"
; Basic phi triangle.
; CHECK-LABEL: test0:
; CHECK: div_s $[[NUM0:[0-9]+]]=, $0, $pop[[NUM1:[0-9]+]]{{$}}
; CHECK: return $[[NUM0]]{{$}}
define i32 @test0(i32 %p) {
entry:
%t = icmp slt i32 %p, 0
br i1 %t, label %true, label %done
true:
%a = sdiv i32 %p, 3
br label %done
done:
%s = phi i32 [ %a, %true ], [ %p, %entry ]
ret i32 %s
}
; Swap phis.
; CHECK-LABEL: test1:
; CHECK: .LBB{{[0-9]+}}_1:
; CHECK: local.copy $[[NUM0:[0-9]+]]=, $[[NUM1:[0-9]+]]{{$}}
; CHECK: local.copy $[[NUM1]]=, $[[NUM2:[0-9]+]]{{$}}
; CHECK: local.copy $[[NUM2]]=, $[[NUM0]]{{$}}
define i32 @test1(i32 %n) {
entry:
br label %loop
loop:
%a = phi i32 [ 0, %entry ], [ %b, %loop ]
%b = phi i32 [ 1, %entry ], [ %a, %loop ]
%i = phi i32 [ 0, %entry ], [ %i.next, %loop ]
%i.next = add i32 %i, 1
%t = icmp slt i32 %i.next, %n
br i1 %t, label %loop, label %exit
exit:
ret i32 %a
}