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llvm-mirror/test/Transforms/InstCombine/setcc-strength-reduce.ll
Chandler Carruth 5d3a0ce4e5 Fix the remaining TCL-style quotes found in the testsuite. This is
another mechanical change accomplished though the power of terrible Perl
scripts.

I have manually switched some "s to 's to make escaping simpler.

While I started this to fix tests that aren't run in all configurations,
the massive number of tests is due to a really frustrating fragility of
our testing infrastructure: things like 'grep -v', 'not grep', and
'expected failures' can mask broken tests all too easily.

Essentially, I'm deeply disturbed that I can change the testsuite so
radically without causing any change in results for most platforms. =/

llvm-svn: 159547
2012-07-02 19:09:46 +00:00

38 lines
970 B
LLVM

; This test ensures that "strength reduction" of conditional expressions are
; working. Basically this boils down to converting setlt,gt,le,ge instructions
; into equivalent setne,eq instructions.
;
; RUN: opt < %s -instcombine -S | \
; RUN: grep -v "icmp eq" | grep -v "icmp ne" | not grep icmp
; END.
define i1 @test1(i32 %A) {
; setne %A, 0
%B = icmp uge i32 %A, 1 ; <i1> [#uses=1]
ret i1 %B
}
define i1 @test2(i32 %A) {
; setne %A, 0
%B = icmp ugt i32 %A, 0 ; <i1> [#uses=1]
ret i1 %B
}
define i1 @test3(i8 %A) {
; setne %A, -128
%B = icmp sge i8 %A, -127 ; <i1> [#uses=1]
ret i1 %B
}
define i1 @test4(i8 %A) {
; setne %A, 127
%B = icmp sle i8 %A, 126 ; <i1> [#uses=1]
ret i1 %B
}
define i1 @test5(i8 %A) {
; setne %A, 127
%B = icmp slt i8 %A, 127 ; <i1> [#uses=1]
ret i1 %B
}