llvm/test/Transforms/IndVarSimplify/promote-iv-to-eliminate-casts.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

100 lines
3.2 KiB
LLVM

; RUN: opt < %s -indvars -S > %t
; RUN: not grep sext %t
define i64 @test(i64* nocapture %first, i32 %count) nounwind readonly {
entry:
%t0 = icmp sgt i32 %count, 0 ; <i1> [#uses=1]
br i1 %t0, label %bb.nph, label %bb2
bb.nph: ; preds = %entry
br label %bb
bb: ; preds = %bb1, %bb.nph
%result.02 = phi i64 [ %t5, %bb1 ], [ 0, %bb.nph ] ; <i64> [#uses=1]
%n.01 = phi i32 [ %t6, %bb1 ], [ 0, %bb.nph ] ; <i32> [#uses=2]
%t1 = sext i32 %n.01 to i64 ; <i64> [#uses=1]
%t2 = getelementptr i64* %first, i64 %t1 ; <i64*> [#uses=1]
%t3 = load i64* %t2, align 8 ; <i64> [#uses=1]
%t4 = lshr i64 %t3, 4 ; <i64> [#uses=1]
%t5 = add i64 %t4, %result.02 ; <i64> [#uses=2]
%t6 = add i32 %n.01, 1 ; <i32> [#uses=2]
br label %bb1
bb1: ; preds = %bb
%t7 = icmp slt i32 %t6, %count ; <i1> [#uses=1]
br i1 %t7, label %bb, label %bb1.bb2_crit_edge
bb1.bb2_crit_edge: ; preds = %bb1
%.lcssa = phi i64 [ %t5, %bb1 ] ; <i64> [#uses=1]
br label %bb2
bb2: ; preds = %bb1.bb2_crit_edge, %entry
%result.0.lcssa = phi i64 [ %.lcssa, %bb1.bb2_crit_edge ], [ 0, %entry ] ; <i64> [#uses=1]
ret i64 %result.0.lcssa
}
define void @foo(i16 signext %N, i32* nocapture %P) nounwind {
entry:
%t0 = icmp sgt i16 %N, 0 ; <i1> [#uses=1]
br i1 %t0, label %bb.nph, label %return
bb.nph: ; preds = %entry
br label %bb
bb: ; preds = %bb1, %bb.nph
%i.01 = phi i16 [ %t3, %bb1 ], [ 0, %bb.nph ] ; <i16> [#uses=2]
%t1 = sext i16 %i.01 to i64 ; <i64> [#uses=1]
%t2 = getelementptr i32* %P, i64 %t1 ; <i32*> [#uses=1]
store i32 123, i32* %t2, align 4
%t3 = add i16 %i.01, 1 ; <i16> [#uses=2]
br label %bb1
bb1: ; preds = %bb
%t4 = icmp slt i16 %t3, %N ; <i1> [#uses=1]
br i1 %t4, label %bb, label %bb1.return_crit_edge
bb1.return_crit_edge: ; preds = %bb1
br label %return
return: ; preds = %bb1.return_crit_edge, %entry
ret void
}
; Test cases from PR1301:
define void @kinds__srangezero([21 x i32]* nocapture %a) nounwind {
bb.thread:
br label %bb
bb: ; preds = %bb, %bb.thread
%i.0.reg2mem.0 = phi i8 [ -10, %bb.thread ], [ %tmp7, %bb ] ; <i8> [#uses=2]
%tmp12 = sext i8 %i.0.reg2mem.0 to i32 ; <i32> [#uses=1]
%tmp4 = add i32 %tmp12, 10 ; <i32> [#uses=1]
%tmp5 = getelementptr [21 x i32]* %a, i32 0, i32 %tmp4 ; <i32*> [#uses=1]
store i32 0, i32* %tmp5
%tmp7 = add i8 %i.0.reg2mem.0, 1 ; <i8> [#uses=2]
%0 = icmp sgt i8 %tmp7, 10 ; <i1> [#uses=1]
br i1 %0, label %return, label %bb
return: ; preds = %bb
ret void
}
define void @kinds__urangezero([21 x i32]* nocapture %a) nounwind {
bb.thread:
br label %bb
bb: ; preds = %bb, %bb.thread
%i.0.reg2mem.0 = phi i8 [ 10, %bb.thread ], [ %tmp7, %bb ] ; <i8> [#uses=2]
%tmp12 = sext i8 %i.0.reg2mem.0 to i32 ; <i32> [#uses=1]
%tmp4 = add i32 %tmp12, -10 ; <i32> [#uses=1]
%tmp5 = getelementptr [21 x i32]* %a, i32 0, i32 %tmp4 ; <i32*> [#uses=1]
store i32 0, i32* %tmp5
%tmp7 = add i8 %i.0.reg2mem.0, 1 ; <i8> [#uses=2]
%0 = icmp sgt i8 %tmp7, 30 ; <i1> [#uses=1]
br i1 %0, label %return, label %bb
return: ; preds = %bb
ret void
}