mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-25 22:12:57 +02:00
2799e916c3
use the old behavior, the flag is -O0. This change allows for finer-grained control over which optimizations are run at different -O levels. Most of this work was pretty mechanical. The majority of the fixes came from verifying that a "fast" variable wasn't used anymore. The JIT still uses a "Fast" flag. I'm not 100% sure if it's necessary to change it there... llvm-svn: 70270
24 lines
961 B
LLVM
24 lines
961 B
LLVM
; RUN: llvm-as < %s | llc -mtriple=i386-apple-darwin -O0
|
|
|
|
define fastcc void @optimize_bit_field() nounwind {
|
|
bb4:
|
|
%a = load i32* null ; <i32> [#uses=1]
|
|
%s = load i32* getelementptr (i32* null, i32 1) ; <i32> [#uses=1]
|
|
%z = load i32* getelementptr (i32* null, i32 2) ; <i32> [#uses=1]
|
|
%r = bitcast i32 0 to i32 ; <i32> [#uses=1]
|
|
%q = trunc i32 %z to i8 ; <i8> [#uses=1]
|
|
%b = icmp eq i8 0, %q ; <i1> [#uses=1]
|
|
br i1 %b, label %bb73, label %bb72
|
|
|
|
bb72: ; preds = %bb4
|
|
%f = tail call fastcc i32 @gen_lowpart(i32 %r, i32 %a) nounwind ; <i32> [#uses=1]
|
|
br label %bb73
|
|
|
|
bb73: ; preds = %bb72, %bb4
|
|
%y = phi i32 [ %f, %bb72 ], [ %s, %bb4 ] ; <i32> [#uses=1]
|
|
store i32 %y, i32* getelementptr (i32* null, i32 3)
|
|
unreachable
|
|
}
|
|
|
|
declare fastcc i32 @gen_lowpart(i32, i32) nounwind
|