llvm-6502/test/CodeGen/X86/loop-strength-reduce6.ll
Evan Cheng af62c09437 - Bug fixes.
- Allow icmp rewrite using an iv / stride of a smaller integer type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43480 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-29 22:07:18 +00:00

67 lines
2.0 KiB
LLVM

; RUN: llvm-as < %s | llc -march=x86-64 | not grep inc
define fastcc i32 @decodeMP3(i32 %isize, i32* %done) {
entry:
br i1 false, label %cond_next191, label %cond_true189
cond_true189: ; preds = %entry
ret i32 0
cond_next191: ; preds = %entry
br i1 false, label %cond_next37.i, label %cond_false.i9
cond_false.i9: ; preds = %cond_next191
ret i32 0
cond_next37.i: ; preds = %cond_next191
br i1 false, label %cond_false50.i, label %cond_true44.i
cond_true44.i: ; preds = %cond_next37.i
br i1 false, label %cond_true11.i.i, label %bb414.preheader.i
cond_true11.i.i: ; preds = %cond_true44.i
ret i32 0
cond_false50.i: ; preds = %cond_next37.i
ret i32 0
bb414.preheader.i: ; preds = %cond_true44.i
br i1 false, label %bb.i18, label %do_layer3.exit
bb.i18: ; preds = %bb414.preheader.i
br i1 false, label %bb358.i, label %cond_true79.i
cond_true79.i: ; preds = %bb.i18
ret i32 0
bb331.i: ; preds = %bb358.i, %cond_true.i149.i
br i1 false, label %cond_true.i149.i, label %cond_false.i151.i
cond_true.i149.i: ; preds = %bb331.i
br i1 false, label %bb178.preheader.i.i, label %bb331.i
cond_false.i151.i: ; preds = %bb331.i
ret i32 0
bb163.i.i: ; preds = %bb178.preheader.i.i, %bb163.i.i
%rawout2.451.rec.i.i = phi i64 [ 0, %bb178.preheader.i.i ], [ %indvar.next260.i, %bb163.i.i ] ; <i64> [#uses=2]
%i.052.i.i = trunc i64 %rawout2.451.rec.i.i to i32 ; <i32> [#uses=1]
%tmp165.i144.i = shl i32 %i.052.i.i, 5 ; <i32> [#uses=1]
%tmp165169.i.i = sext i32 %tmp165.i144.i to i64 ; <i64> [#uses=0]
%indvar.next260.i = add i64 %rawout2.451.rec.i.i, 1 ; <i64> [#uses=2]
%exitcond261.i = icmp eq i64 %indvar.next260.i, 18 ; <i1> [#uses=1]
br i1 %exitcond261.i, label %bb178.preheader.i.i, label %bb163.i.i
bb178.preheader.i.i: ; preds = %bb163.i.i, %cond_true.i149.i
br label %bb163.i.i
bb358.i: ; preds = %bb.i18
br i1 false, label %bb331.i, label %bb406.i
bb406.i: ; preds = %bb358.i
ret i32 0
do_layer3.exit: ; preds = %bb414.preheader.i
ret i32 0
}