| ; Test that the ToAsciiOptimizer works correctly |
| ; RUN: opt < %s -simplify-libcalls -S | \ |
| ; RUN: not grep {call.*@ffs} |
| |
| @non_const = external global i32 ; <i32*> [#uses=1] |
| |
| declare i32 @ffs(i32) |
| |
| declare i32 @ffsl(i32) |
| |
| declare i32 @ffsll(i64) |
| |
| define i32 @main() { |
| %arg = load i32* @non_const ; <i32> [#uses=1] |
| %val0 = call i32 @ffs( i32 %arg ) ; <i32> [#uses=1] |
| %val1 = call i32 @ffs( i32 1 ) ; <i32> [#uses=1] |
| %val2 = call i32 @ffs( i32 2048 ) ; <i32> [#uses=1] |
| %val3 = call i32 @ffsl( i32 65536 ) ; <i32> [#uses=1] |
| %val4 = call i32 @ffsll( i64 1024 ) ; <i32> [#uses=1] |
| %val5 = call i32 @ffsll( i64 17179869184 ) ; <i32> [#uses=1] |
| %val6 = call i32 @ffsll( i64 1152921504606846976 ) ; <i32> [#uses=1] |
| %rslt1 = add i32 %val1, %val2 ; <i32> [#uses=1] |
| %rslt2 = add i32 %val3, %val4 ; <i32> [#uses=1] |
| %rslt3 = add i32 %val5, %val6 ; <i32> [#uses=1] |
| %rslt4 = add i32 %rslt1, %rslt2 ; <i32> [#uses=1] |
| %rslt5 = add i32 %rslt4, %rslt3 ; <i32> [#uses=2] |
| %rslt6 = add i32 %rslt5, %val0 ; <i32> [#uses=0] |
| ret i32 %rslt5 |
| } |
| |
| |
| ; PR4206 |
| define i32 @a(i64) nounwind { |
| %2 = call i32 @ffsll(i64 %0) ; <i32> [#uses=1] |
| ret i32 %2 |
| } |