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convert this to an unfoldable potentially trapping constant expr.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62536 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2009-01-19 22:12:33 +00:00
parent 2f39b29170
commit a14fa71a4e
1 changed files with 4 additions and 2 deletions
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6
test/Transforms/SimplifyCFG/2006-10-19-UncondDiv.ll
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@ -2,6 +2,8 @@
; RUN: llvm-as < %s | opt -simplifycfg | llvm-dis | \
; RUN: not grep select
@G = extern_weak global i32
define i32 @test(i32 %tmp) {
cond_false179:
%tmp181 = icmp eq i32 %tmp, 0 ; <i1> [#uses=1]
@ -9,7 +11,7 @@ cond_false179:
cond_true182: ; preds = %cond_false179
br label %cond_next185
cond_next185: ; preds = %cond_true182, %cond_false179
%d0.3 = phi i32 [ udiv (i32 1, i32 0), %cond_true182 ], [ %tmp, %cond_false179 ] ; <i32> [#uses=1]
%d0.3 = phi i32 [ udiv (i32 1, i32 ptrtoint (i32* @G to i32)), %cond_true182 ], [ %tmp, %cond_false179 ] ; <i32> [#uses=1]
ret i32 %d0.3
}
@ -20,7 +22,7 @@ cond_false179:
cond_true182: ; preds = %cond_false179
br label %cond_next185
cond_next185: ; preds = %cond_true182, %cond_false179
%d0.3 = phi i32 [ udiv (i32 1, i32 0), %cond_true182 ], [ %tmp, %cond_false179 ] ; <i32> [#uses=1]
%d0.3 = phi i32 [ udiv (i32 1, i32 ptrtoint (i32* @G to i32)), %cond_true182 ], [ %tmp, %cond_false179 ] ; <i32> [#uses=1]
call i32 @test( i32 4 ) ; <i32>:0 [#uses=0]
ret i32 %d0.3
}