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Add a test to ensure a bitcast/and/trunc combination eliminates the bitcast.

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llvm-svn: 31934
This commit is contained in:
Reid Spencer 2006-11-27 05:06:58 +00:00
parent aa8f67c2b5
commit 7054676526
1 changed files with 14 additions and 0 deletions
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14
test/Regression/Transforms/InstCombine/cast-and-cast.ll Normal file
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; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep bitcast
bool %test1(uint %val) {
%t1 = bitcast uint %val to int
%t2 = and int %t1, 1
%t3 = trunc int %t2 to bool
ret bool %t3
}
short %test1(uint %val) {
%t1 = bitcast uint %val to int
%t2 = and int %t1, 1
%t3 = trunc int %t2 to short
ret short %t3
}