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llvm-mirror/test/Transforms/SimplifyLibCalls/FFS.ll
Dan Gohman 205b641954 Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.

llvm-svn: 81537
2009-09-11 18:01:28 +00:00

37 lines
1.1 KiB
LLVM

; 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
}