target datalayout = "e-p:32:32-i64:64-v128:8:128-n32:64-S128"
target triple = "wasm32-unknown-unknown"
+; Basic phi triangle.
+
; CHECK-LABEL: test0
; CHECK: (setlocal [[REG:@.*]] (argument 0))
; CHECK: (setlocal [[REG]] (sdiv [[REG]] {{.*}}))
%s = phi i32 [ %a, %true ], [ %p, %entry ]
ret i32 %s
}
+
+; Swap phis.
+
+; CHECK-LABEL: test1
+; CHECK: BB0_1:
+; CHECK: (setlocal [[REG0:@.*]] [[REG1:@.*]])
+; CHECK: (setlocal [[REG1]] [[REG2:@.*]])
+; CHECK: (setlocal [[REG2]] [[REG0]])
+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
+}