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Actually test something. Use PR3170 test case.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60727 91177308-0d34-0410-b5e6-96231b3b80d8
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Devang Patel 2008-12-08 23:44:46 +00:00
parent 20fa76ef6f
commit 51d8b669f1
1 changed files with 26 additions and 37 deletions
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63
test/Transforms/LoopUnswitch/2008-11-03-Invariant.ll
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@ -1,47 +1,36 @@
; RUN: llvm-as < %s | opt -loop-unswitch -verify -disable-output
define void @test_fc_while_continue_or(float %x, float %y, float* %result) nounwind {
; RUN: llvm-as < %s | opt -loop-unswitch -stats -disable-output |& grep "1 loop-unswitch - Number of branches unswitched" | count 1
; PR 3170
define i32 @a(i32 %x, i32 %y) nounwind {
entry:
br label %bb2.outer
%0 = icmp ult i32 0, %y ; <i1> [#uses=1]
br i1 %0, label %bb.nph, label %bb4
bb: ; preds = %bb2
%0 = add float %5, %z.0 ; <float> [#uses=3]
%1 = fcmp oeq float %0, 0.000000e+00 ; <i1> [#uses=1]
bb.nph: ; preds = %entry
%1 = icmp eq i32 %x, 0 ; <i1> [#uses=1]
br label %bb
bb: ; preds = %bb.nph, %bb3
%i.01 = phi i32 [ %3, %bb3 ], [ 0, %bb.nph ] ; <i32> [#uses=1]
br i1 %1, label %bb2, label %bb1
bb1: ; preds = %bb
%.lcssa = phi float [ %0, %bb ] ; <float> [#uses=1]
%z.0.lcssa1 = phi float [ %z.0, %bb ] ; <float> [#uses=0]
%2 = add float %x_addr.0.ph, 1.000000e+00 ; <float> [#uses=1]
br label %bb2.outer
bb2.outer: ; preds = %bb1, %entry
%z.0.ph = phi float [ 0.000000e+00, %entry ], [ %.lcssa, %bb1 ] ; <float> [#uses=1]
%x_addr.0.ph = phi float [ %x, %entry ], [ %2, %bb1 ] ; <float> [#uses=3]
%3 = fcmp une float %x_addr.0.ph, 0.000000e+00 ; <i1> [#uses=1]
%4 = fcmp une float %y, 0.000000e+00 ; <i1> [#uses=1]
%or.cond = or i1 %3, %4 ; <i1> [#uses=1]
%5 = mul float %x_addr.0.ph, %y ; <float> [#uses=1]
%2 = tail call i32 (...)* @b() nounwind ; <i32> [#uses=0]
br label %bb2
bb2: ; preds = %bb2.outer, %bb
%z.0 = phi float [ %0, %bb ], [ %z.0.ph, %bb2.outer ] ; <float> [#uses=3]
br i1 %or.cond, label %bb, label %bb4
bb2: ; preds = %bb, %bb1
%3 = add i32 %i.01, 1 ; <i32> [#uses=2]
br label %bb3
bb4: ; preds = %bb2
%z.0.lcssa = phi float [ %z.0, %bb2 ] ; <float> [#uses=1]
store float %z.0.lcssa, float* %result, align 4
ret void
bb3: ; preds = %bb2
%i.0 = phi i32 [ %3, %bb2 ] ; <i32> [#uses=1]
%4 = icmp ult i32 %i.0, %y ; <i1> [#uses=1]
br i1 %4, label %bb, label %bb3.bb4_crit_edge
bb3.bb4_crit_edge: ; preds = %bb3
br label %bb4
bb4: ; preds = %bb3.bb4_crit_edge, %entry
ret i32 0
}
define i32 @main() nounwind {
entry:
%z = alloca [10 x i32] ; <[10 x i32]*> [#uses=2]
%0 = call i32 (...)* @test_fc_while_or(i32 0, i32 0, [10 x i32]* %z) nounwind ; <i32> [#uses=0]
%1 = getelementptr [10 x i32]* %z, i32 0, i32 0 ; <i32*> [#uses=1]
%2 = load i32* %1, align 4 ; <i32> [#uses=1]
ret i32 %2
}
declare i32 @test_fc_while_or(...)
declare i32 @b(...)