forked from OSchip/llvm-project
49 lines
1.0 KiB
LLVM
49 lines
1.0 KiB
LLVM
; RUN: llc < %s -asm-verbose=false | FileCheck %s
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; Test that phis are lowered.
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target datalayout = "e-p:32:32-i64:64-n32:64-S128"
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target triple = "wasm32-unknown-unknown"
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; Basic phi triangle.
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; CHECK-LABEL: test0
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; CHECK: (setlocal [[REG:@.*]] (argument 0))
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; CHECK: (setlocal [[REG]] (sdiv [[REG]] {{.*}}))
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; CHECK: (return [[REG]])
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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: BB1_1:
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; CHECK: (setlocal [[REG0:@.*]] [[REG1:@.*]])
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; CHECK: (setlocal [[REG1]] [[REG2:@.*]])
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; CHECK: (setlocal [[REG2]] [[REG0]])
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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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