diff options
Diffstat (limited to 'test/Transforms/IndVarSimplify/promote-iv-to-eliminate-casts.ll')
-rw-r--r-- | test/Transforms/IndVarSimplify/promote-iv-to-eliminate-casts.ll | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/test/Transforms/IndVarSimplify/promote-iv-to-eliminate-casts.ll b/test/Transforms/IndVarSimplify/promote-iv-to-eliminate-casts.ll new file mode 100644 index 0000000..08b08f2 --- /dev/null +++ b/test/Transforms/IndVarSimplify/promote-iv-to-eliminate-casts.ll @@ -0,0 +1,100 @@ +; RUN: llvm-as < %s | opt -indvars | llvm-dis | not grep sext + +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128" + +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 +} |