1
0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-10-31 07:52:55 +01:00
llvm-mirror/test/Transforms/InstCombine/CPP_min_max.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

35 lines
1.4 KiB
LLVM

; RUN: opt < %s -instcombine -S | \
; RUN: grep select | not grep 'i32\*'
; This testcase corresponds to PR362, which notices that this horrible code
; is generated by the C++ front-end and LLVM optimizers, which has lots of
; loads and other stuff that are unneeded.
;
; Instcombine should propagate the load through the select instructions to
; allow elimination of the extra stuff by the mem2reg pass.
define void @_Z5test1RiS_(i32* %x, i32* %y) {
entry:
%tmp.1.i = load i32* %y ; <i32> [#uses=1]
%tmp.3.i = load i32* %x ; <i32> [#uses=1]
%tmp.4.i = icmp slt i32 %tmp.1.i, %tmp.3.i ; <i1> [#uses=1]
%retval.i = select i1 %tmp.4.i, i32* %y, i32* %x ; <i32*> [#uses=1]
%tmp.4 = load i32* %retval.i ; <i32> [#uses=1]
store i32 %tmp.4, i32* %x
ret void
}
define void @_Z5test2RiS_(i32* %x, i32* %y) {
entry:
%tmp.0 = alloca i32 ; <i32*> [#uses=2]
%tmp.2 = load i32* %x ; <i32> [#uses=2]
store i32 %tmp.2, i32* %tmp.0
%tmp.3.i = load i32* %y ; <i32> [#uses=1]
%tmp.4.i = icmp slt i32 %tmp.2, %tmp.3.i ; <i1> [#uses=1]
%retval.i = select i1 %tmp.4.i, i32* %y, i32* %tmp.0 ; <i32*> [#uses=1]
%tmp.6 = load i32* %retval.i ; <i32> [#uses=1]
store i32 %tmp.6, i32* %y
ret void
}