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merge two tests.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112617 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-08-31 18:44:03 +00:00
parent 047f4f5c91
commit 0676984117
2 changed files with 35 additions and 35 deletions
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36
test/Transforms/TailCallElim/accum_recursion.ll
View File

@ -37,4 +37,38 @@ return: ; preds = %entry
; CHECK: define i32 @test2_mul ; CHECK: define i32 @test2_mul
; CHECK: phi i32 ; CHECK: phi i32
; CHECK-NOT: call i32 ; CHECK-NOT: call i32
; CHECK: return: ; CHECK: return:
define i64 @test3_fib(i64 %n) nounwind readnone {
; CHECK: @test3_fib
entry:
; CHECK: tailrecurse:
; CHECK: %accumulator.tr = phi i64 [ %n, %entry ], [ %3, %bb1 ]
; CHECK: %n.tr = phi i64 [ %n, %entry ], [ %2, %bb1 ]
switch i64 %n, label %bb1 [
; CHECK: switch i64 %n.tr, label %bb1 [
i64 0, label %bb2
i64 1, label %bb2
]
bb1:
; CHECK: bb1:
%0 = add i64 %n, -1
; CHECK: %0 = add i64 %n.tr, -1
%1 = tail call i64 @test3_fib(i64 %0) nounwind
; CHECK: %1 = tail call i64 @test3_fib(i64 %0)
%2 = add i64 %n, -2
; CHECK: %2 = add i64 %n.tr, -2
%3 = tail call i64 @test3_fib(i64 %2) nounwind
; CHECK-NOT: tail call i64 @test3_fib
%4 = add nsw i64 %3, %1
; CHECK: add nsw i64 %accumulator.tr, %1
ret i64 %4
; CHECK: br label %tailrecurse
bb2:
; CHECK: bb2:
ret i64 %n
; CHECK: ret i64 %accumulator.tr
}

34
test/Transforms/TailCallElim/switch.ll
View File

@ -1,34 +0,0 @@
; RUN: opt %s -tailcallelim -S | FileCheck %s
define i64 @fib(i64 %n) nounwind readnone {
; CHECK: @fib
entry:
; CHECK: tailrecurse:
; CHECK: %accumulator.tr = phi i64 [ %n, %entry ], [ %3, %bb1 ]
; CHECK: %n.tr = phi i64 [ %n, %entry ], [ %2, %bb1 ]
switch i64 %n, label %bb1 [
; CHECK: switch i64 %n.tr, label %bb1 [
i64 0, label %bb2
i64 1, label %bb2
]
bb1:
; CHECK: bb1:
%0 = add i64 %n, -1
; CHECK: %0 = add i64 %n.tr, -1
%1 = tail call i64 @fib(i64 %0) nounwind
; CHECK: %1 = tail call i64 @fib(i64 %0)
%2 = add i64 %n, -2
; CHECK: %2 = add i64 %n.tr, -2
%3 = tail call i64 @fib(i64 %2) nounwind
; CHECK-NOT: tail call i64 @fib
%4 = add nsw i64 %3, %1
; CHECK: add nsw i64 %accumulator.tr, %1
ret i64 %4
; CHECK: br label %tailrecurse
bb2:
; CHECK: bb2:
ret i64 %n
; CHECK: ret i64 %accumulator.tr
}