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							// RUN: %clang_cc1 -E %s | grep 'ei_1 = (17 +1);'
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							// RUN: %clang_cc1 -E %s | grep 'ei_2 = (M1)(17);'
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							#define M1(a) (a+1) 
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							#define M2(b) b 
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							int ei_1 = M2(M1)(17); /* becomes int ei_1 = (17+1); */ 
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							int ei_2 = (M2(M1))(17); /* becomes int ei_2 = (M1)(17); */ 
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