| Jakob Stoklund Olesen | fe0a8cd | 2010-02-23 22:44:02 +0000 | [diff] [blame^] | 1 | ; RUN: llc < %s |
| 2 | ; PR6372 |
| 3 | ; |
| 4 | ; This test produces a move instruction with an implicitly defined super-register: |
| 5 | ; |
| 6 | ; %DL<def> = MOV8rr %reg1038<kill>, %RDX<imp-def> |
| 7 | ; |
| 8 | ; When %DL is rematerialized, we must remember to update live intervals for |
| 9 | ; sub-registers %DX and %EDX. |
| 10 | |
| 11 | 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-n8:16:32:64" |
| 12 | target triple = "x86_64-apple-darwin10.0.0" |
| 13 | |
| 14 | define noalias i8* @foo() nounwind ssp { |
| 15 | entry: |
| 16 | br i1 undef, label %for.end, label %for.body |
| 17 | |
| 18 | for.body: ; preds = %if.end40, %entry |
| 19 | %tmp6 = load i8* undef, align 2 ; <i8> [#uses=3] |
| 20 | %conv11 = sext i8 %tmp6 to i64 ; <i64> [#uses=1] |
| 21 | %cmp15 = icmp slt i64 %conv11, undef ; <i1> [#uses=1] |
| 22 | br i1 %cmp15, label %if.end, label %if.then |
| 23 | |
| 24 | if.then: ; preds = %for.body |
| 25 | %conv18 = sext i8 %tmp6 to i32 ; <i32> [#uses=1] |
| 26 | %call = tail call i32 (...)* @invalid(i32 0, i32 0, i32 %conv18) nounwind ; <i32> [#uses=0] |
| 27 | br label %if.end |
| 28 | |
| 29 | if.end: ; preds = %if.then, %for.body |
| 30 | %index.0 = phi i8 [ 0, %if.then ], [ %tmp6, %for.body ] ; <i8> [#uses=1] |
| 31 | store i8 %index.0, i8* undef |
| 32 | %tmp24 = load i8* undef ; <i8> [#uses=2] |
| 33 | br i1 undef, label %if.end40, label %if.then36 |
| 34 | |
| 35 | if.then36: ; preds = %if.end |
| 36 | %conv38 = sext i8 %tmp24 to i32 ; <i32> [#uses=1] |
| 37 | %call39 = tail call i32 (...)* @invalid(i32 0, i32 0, i32 %conv38) nounwind ; <i32> [#uses=0] |
| 38 | br label %if.end40 |
| 39 | |
| 40 | if.end40: ; preds = %if.then36, %if.end |
| 41 | %index.1 = phi i8 [ 0, %if.then36 ], [ %tmp24, %if.end ] ; <i8> [#uses=1] |
| 42 | store i8 %index.1, i8* undef |
| 43 | br i1 false, label %for.body, label %for.end |
| 44 | |
| 45 | for.end: ; preds = %if.end40, %entry |
| 46 | ret i8* undef |
| 47 | } |
| 48 | |
| 49 | declare i32 @invalid(...) |