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llvm-mirror/test/Transforms/LoopStrengthReduce/pr3399.ll
Dan Gohman 205b641954 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.

llvm-svn: 81537
2009-09-11 18:01:28 +00:00

33 lines
831 B
LLVM

; RUN: opt < %s -loop-reduce | llvm-dis
; PR3399
@g_53 = external global i32 ; <i32*> [#uses=1]
define i32 @foo() nounwind {
bb5.thread:
br label %bb
bb: ; preds = %bb5, %bb5.thread
%indvar = phi i32 [ 0, %bb5.thread ], [ %indvar.next, %bb5 ] ; <i32> [#uses=2]
br i1 false, label %bb5, label %bb1
bb1: ; preds = %bb
%l_2.0.reg2mem.0 = sub i32 0, %indvar ; <i32> [#uses=1]
%0 = volatile load i32* @g_53, align 4 ; <i32> [#uses=1]
%1 = trunc i32 %l_2.0.reg2mem.0 to i16 ; <i16> [#uses=1]
%2 = trunc i32 %0 to i16 ; <i16> [#uses=1]
%3 = mul i16 %2, %1 ; <i16> [#uses=1]
%4 = icmp eq i16 %3, 0 ; <i1> [#uses=1]
br i1 %4, label %bb7, label %bb2
bb2: ; preds = %bb2, %bb1
br label %bb2
bb5: ; preds = %bb
%indvar.next = add i32 %indvar, 1 ; <i32> [#uses=1]
br label %bb
bb7: ; preds = %bb1
ret i32 1
}