llvm-6502/test/Transforms/LoopStrengthReduce/2009-04-28-no-reduce-mul.ll
Dan Gohman f2f6ce65b7 Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81537 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11 18:01:28 +00:00

45 lines
1.8 KiB
LLVM

; RUN: opt < %s -loop-reduce -S \
; RUN: | grep {getelementptr.*%lsr.iv.*%lsr.iv.*<i32\\*>}
; The multiply in bb2 must not be reduced to an add, as the sext causes the
; %1 argument to become negative after a while.
; ModuleID = '<stdin>'
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
target triple = "i386-apple-darwin9.6"
@table = common global [32 x [256 x i32]] zeroinitializer, align 32 ; <[32 x [256 x i32]]*> [#uses=2]
define i32 @main() nounwind {
bb4.thread:
br label %bb2
bb2: ; preds = %bb4, %bb2, %bb4.thread
%i.0.reg2mem.0.ph = phi i32 [ 0, %bb4.thread ], [ %i.0.reg2mem.0.ph, %bb2 ], [ %indvar.next9, %bb4 ] ; <i32> [#uses=4]
%j.0.reg2mem.0 = phi i32 [ 0, %bb4.thread ], [ %indvar.next, %bb2 ], [ 0, %bb4 ] ; <i32> [#uses=3]
%0 = trunc i32 %j.0.reg2mem.0 to i8 ; <i8> [#uses=1]
%1 = sext i8 %0 to i32 ; <i32> [#uses=1]
%2 = mul i32 %1, %i.0.reg2mem.0.ph ; <i32> [#uses=1]
%3 = getelementptr [32 x [256 x i32]]* @table, i32 0, i32 %i.0.reg2mem.0.ph, i32 %j.0.reg2mem.0 ; <i32*> [#uses=1]
store i32 %2, i32* %3, align 4
%indvar.next = add i32 %j.0.reg2mem.0, 1 ; <i32> [#uses=2]
%exitcond = icmp eq i32 %indvar.next, 256 ; <i1> [#uses=1]
br i1 %exitcond, label %bb4, label %bb2
bb4: ; preds = %bb2
%indvar.next9 = add i32 %i.0.reg2mem.0.ph, 1 ; <i32> [#uses=2]
%exitcond10 = icmp eq i32 %indvar.next9, 32 ; <i1> [#uses=1]
br i1 %exitcond10, label %bb5, label %bb2
bb5: ; preds = %bb4
%4 = load i32* getelementptr ([32 x [256 x i32]]* @table, i32 0, i32 9, i32 132), align 16 ; <i32> [#uses=1]
%5 = icmp eq i32 %4, -1116 ; <i1> [#uses=1]
br i1 %5, label %bb7, label %bb6
bb6: ; preds = %bb5
tail call void @abort() noreturn nounwind
unreachable
bb7: ; preds = %bb5
ret i32 0
}
declare void @abort() noreturn nounwind