| ; RUN: llc < %s > %t | |
| ; PR6300 | |
| target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32" | |
| target triple = "i386-pc-linux-gnu" | |
| ; When the "154" loops back onto itself, it defines a register after using it. | |
| ; The first value of the register is implicit-def. | |
| %"struct location_chain_def" = type { %"struct location_chain_def"*, %"struct rtx_def"*, %"struct rtx_def"*, i32 } | |
| %"struct real_value" = type { i32, [5 x i32] } | |
| %"struct rtx_def" = type { i16, i8, i8, %"union u" } | |
| %"union u" = type { %"struct real_value" } | |
| define i32 @variable_union(i8** nocapture %slot, i8* nocapture %data) nounwind { | |
| entry: | |
| br i1 undef, label %"4.thread", label %"3" | |
| "4.thread": ; preds = %entry | |
| unreachable | |
| "3": ; preds = %entry | |
| br i1 undef, label %"19", label %"20" | |
| "19": ; preds = %"3" | |
| unreachable | |
| "20": ; preds = %"3" | |
| br i1 undef, label %"56.preheader", label %dv_onepart_p.exit | |
| dv_onepart_p.exit: ; preds = %"20" | |
| unreachable | |
| "56.preheader": ; preds = %"20" | |
| br label %"56" | |
| "50": ; preds = %"57" | |
| br label %"56" | |
| "56": ; preds = %"50", %"56.preheader" | |
| br i1 undef, label %"57", label %"58" | |
| "57": ; preds = %"56" | |
| br i1 undef, label %"50", label %"58" | |
| "58": ; preds = %"57", %"56" | |
| br i1 undef, label %"62", label %"63" | |
| "62": ; preds = %"58" | |
| unreachable | |
| "63": ; preds = %"58" | |
| br i1 undef, label %"67", label %"66" | |
| "66": ; preds = %"63" | |
| br label %"67" | |
| "67": ; preds = %"66", %"63" | |
| br label %"68" | |
| "68": ; preds = %"161", %"67" | |
| br i1 undef, label %"153", label %"161" | |
| "153": ; preds = %"68" | |
| br i1 undef, label %"160", label %bb.nph46 | |
| bb.nph46: ; preds = %"153" | |
| br label %"154" | |
| "154": ; preds = %"154", %bb.nph46 | |
| %0 = phi %"struct location_chain_def"** [ undef, %bb.nph46 ], [ %1, %"154" ] ; <%"struct location_chain_def"**> [#uses=1] | |
| %1 = bitcast i8* undef to %"struct location_chain_def"** ; <%"struct location_chain_def"**> [#uses=1] | |
| store %"struct location_chain_def"* undef, %"struct location_chain_def"** %0, align 4 | |
| br i1 undef, label %"160", label %"154" | |
| "160": ; preds = %"154", %"153" | |
| br label %"161" | |
| "161": ; preds = %"160", %"68" | |
| br label %"68" | |
| } |