llvm-mirror/test/Transforms/GVN/rle-semidominated.ll

; RUN: opt < %s -basicaa -gvn -S | grep "DEAD = phi i32 "

define i32 @main(i32* %p) {
block1:
  %z = load i32* %p
	br i1 true, label %block2, label %block3

block2:
 br label %block4

block3:
  %b = bitcast i32 0 to i32
  store i32 %b, i32* %p
  br label %block4

block4:
  %DEAD = load i32* %p
  ret i32 %DEAD
}
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 14:47:22 +02:00			`; RUN: opt < %s -basicaa -gvn -S \| grep "DEAD = phi i32 "`
Add basic support for performing whole-function RLE. Note: This has not yet been thoroughly tested. Use at your own risk. llvm-svn: 40489 2007-07-25 21:57:03 +02:00
			`define i32 @main(i32* %p) {`
			`block1:`
			`%z = load i32* %p`
			`br i1 true, label %block2, label %block3`

			`block2:`
			`br label %block4`

			`block3:`
			`%b = bitcast i32 0 to i32`
			`store i32 %b, i32* %p`
			`br label %block4`

			`block4:`
			`%DEAD = load i32* %p`
			`ret i32 %DEAD`
Convert tests using "\| wc -l \| grep ..." to use the count script. llvm-svn: 41097 2007-08-15 15:36:28 +02:00			`}`