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