Convert all tests using TCL-style quoting to use shell-style quoting.
This was done through the aid of a terrible Perl creation. I will not
paste any of the horrors here. Suffice to say, it require multiple
staged rounds of replacements, state carried between, and a few
nested-construct-parsing hacks that I'm not proud of. It happens, by
luck, to be able to deal with all the TCL-quoting patterns in evidence
in the LLVM test suite.
If anyone is maintaining large out-of-tree test trees, feel free to poke
me and I'll send you the steps I used to convert things, as well as
answer any painful questions etc. IRC works best for this type of thing
I find.
Once converted, switch the LLVM lit config to use ShTests the same as
Clang. In addition to being able to delete large amounts of Python code
from 'lit', this will also simplify the entire test suite and some of
lit's architecture.
Finally, the test suite runs 33% faster on Linux now. ;]
For my 16-hardware-thread (2x 4-core xeon e5520): 36s -> 24s
llvm-svn: 159525
2012-07-02 20:47:22 +08:00
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; RUN: opt < %s -instcombine -S | grep "lshr.*3"
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; RUN: opt < %s -instcombine -S | grep "call .*%cond"
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Fix PR2506 by being a bit more careful about reverse fact propagation when
disproving a condition. This actually compiles the existing testcase
(udiv_select_to_select_shift) to:
define i64 @test(i64 %X, i1 %Cond) {
entry:
%divisor1.t = lshr i64 %X, 3 ; <i64> [#uses=1]
%quotient2 = lshr i64 %X, 3 ; <i64> [#uses=1]
%sum = add i64 %divisor1.t, %quotient2 ; <i64> [#uses=1]
ret i64 %sum
}
instead of:
define i64 @test(i64 %X, i1 %Cond) {
entry:
%quotient1.v = select i1 %Cond, i64 3, i64 4 ; <i64> [#uses=1]
%quotient1 = lshr i64 %X, %quotient1.v ; <i64> [#uses=1]
%quotient2 = lshr i64 %X, 3 ; <i64> [#uses=1]
%sum = add i64 %quotient1, %quotient2 ; <i64> [#uses=1]
ret i64 %sum
}
llvm-svn: 53534
2008-07-14 08:15:52 +08:00
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; PR2506
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; We can simplify the operand of udiv to '8', but not the operand to the
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; call. If the callee never returns, we can't assume the div is reachable.
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define i32 @a(i32 %x, i32 %y) {
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entry:
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%tobool = icmp ne i32 %y, 0 ; <i1> [#uses=1]
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%cond = select i1 %tobool, i32 8, i32 0 ; <i32> [#uses=2]
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%call = call i32 @b( i32 %cond ) ; <i32> [#uses=0]
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%div = udiv i32 %x, %cond ; <i32> [#uses=1]
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ret i32 %div
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}
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declare i32 @b(i32)
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