; RUN: llc < %s -O3 ; PR4626 ; ModuleID = '' 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" target triple = "i386-pc-linux-gnu" @g_3 = common global i8 0, align 1 ; [#uses=2] define signext i8 @safe_mul_func_int16_t_s_s(i32 %_si1, i8 signext %_si2) nounwind readnone { entry: %tobool = icmp eq i32 %_si1, 0 ; [#uses=1] %cmp = icmp sgt i8 %_si2, 0 ; [#uses=2] %or.cond = or i1 %cmp, %tobool ; [#uses=1] br i1 %or.cond, label %lor.rhs, label %land.lhs.true3 land.lhs.true3: ; preds = %entry %conv5 = sext i8 %_si2 to i32 ; [#uses=1] %cmp7 = icmp slt i32 %conv5, %_si1 ; [#uses=1] br i1 %cmp7, label %cond.end, label %lor.rhs lor.rhs: ; preds = %land.lhs.true3, %entry %cmp10.not = icmp slt i32 %_si1, 1 ; [#uses=1] %or.cond23 = and i1 %cmp, %cmp10.not ; [#uses=1] br i1 %or.cond23, label %lor.end, label %cond.false lor.end: ; preds = %lor.rhs %tobool19 = icmp ne i8 %_si2, 0 ; [#uses=2] %lor.ext = zext i1 %tobool19 to i32 ; [#uses=1] br i1 %tobool19, label %cond.end, label %cond.false cond.false: ; preds = %lor.end, %lor.rhs %conv21 = sext i8 %_si2 to i32 ; [#uses=1] br label %cond.end cond.end: ; preds = %cond.false, %lor.end, %land.lhs.true3 %cond = phi i32 [ %conv21, %cond.false ], [ 1, %land.lhs.true3 ], [ %lor.ext, %lor.end ] ; [#uses=1] %conv22 = trunc i32 %cond to i8 ; [#uses=1] ret i8 %conv22 } define i32 @func_34(i8 signext %p_35) nounwind readonly { entry: %tobool = icmp eq i8 %p_35, 0 ; [#uses=1] br i1 %tobool, label %lor.lhs.false, label %if.then lor.lhs.false: ; preds = %entry %tmp1 = load i8* @g_3 ; [#uses=1] %tobool3 = icmp eq i8 %tmp1, 0 ; [#uses=1] br i1 %tobool3, label %return, label %if.then if.then: ; preds = %lor.lhs.false, %entry %tmp4 = load i8* @g_3 ; [#uses=1] %conv5 = sext i8 %tmp4 to i32 ; [#uses=1] ret i32 %conv5 return: ; preds = %lor.lhs.false ret i32 0 } define void @foo(i32 %p_5) noreturn nounwind { entry: %cmp = icmp sgt i32 %p_5, 0 ; [#uses=2] %call = tail call i32 @safe() nounwind ; [#uses=1] %conv1 = trunc i32 %call to i8 ; [#uses=3] %tobool.i = xor i1 %cmp, true ; [#uses=3] %cmp.i = icmp sgt i8 %conv1, 0 ; [#uses=3] %or.cond.i = or i1 %cmp.i, %tobool.i ; [#uses=1] br i1 %or.cond.i, label %lor.rhs.i, label %land.lhs.true3.i land.lhs.true3.i: ; preds = %entry %xor = zext i1 %cmp to i32 ; [#uses=1] %conv5.i = sext i8 %conv1 to i32 ; [#uses=1] %cmp7.i = icmp slt i32 %conv5.i, %xor ; [#uses=1] %cmp7.i.not = xor i1 %cmp7.i, true ; [#uses=1] %or.cond23.i = and i1 %cmp.i, %tobool.i ; [#uses=1] %or.cond = and i1 %cmp7.i.not, %or.cond23.i ; [#uses=1] br i1 %or.cond, label %lor.end.i, label %for.inc lor.rhs.i: ; preds = %entry %or.cond23.i.old = and i1 %cmp.i, %tobool.i ; [#uses=1] br i1 %or.cond23.i.old, label %lor.end.i, label %for.inc lor.end.i: ; preds = %lor.rhs.i, %land.lhs.true3.i %tobool19.i = icmp eq i8 %conv1, 0 ; [#uses=0] br label %for.inc for.inc: ; preds = %for.inc, %lor.end.i, %lor.rhs.i, %land.lhs.true3.i br label %for.inc } define i32 @func_35(i8 signext %p_35) nounwind readonly { entry: %tobool = icmp eq i8 %p_35, 0 ; [#uses=1] br i1 %tobool, label %lor.lhs.false, label %if.then lor.lhs.false: ; preds = %entry %tmp1 = load i8* @g_3 ; [#uses=1] %tobool3 = icmp eq i8 %tmp1, 0 ; [#uses=1] br i1 %tobool3, label %return, label %if.then if.then: ; preds = %lor.lhs.false, %entry %tmp4 = load i8* @g_3 ; [#uses=1] %conv5 = sext i8 %tmp4 to i32 ; [#uses=1] ret i32 %conv5 return: ; preds = %lor.lhs.false ret i32 0 } define void @bar(i32 %p_5) noreturn nounwind { entry: %cmp = icmp sgt i32 %p_5, 0 ; [#uses=2] %call = tail call i32 @safe() nounwind ; [#uses=1] %conv1 = trunc i32 %call to i8 ; [#uses=3] %tobool.i = xor i1 %cmp, true ; [#uses=3] %cmp.i = icmp sgt i8 %conv1, 0 ; [#uses=3] %or.cond.i = or i1 %cmp.i, %tobool.i ; [#uses=1] br i1 %or.cond.i, label %lor.rhs.i, label %land.lhs.true3.i land.lhs.true3.i: ; preds = %entry %xor = zext i1 %cmp to i32 ; [#uses=1] %conv5.i = sext i8 %conv1 to i32 ; [#uses=1] %cmp7.i = icmp slt i32 %conv5.i, %xor ; [#uses=1] %cmp7.i.not = xor i1 %cmp7.i, true ; [#uses=1] %or.cond23.i = and i1 %cmp.i, %tobool.i ; [#uses=1] %or.cond = and i1 %cmp7.i.not, %or.cond23.i ; [#uses=1] br i1 %or.cond, label %lor.end.i, label %for.inc lor.rhs.i: ; preds = %entry %or.cond23.i.old = and i1 %cmp.i, %tobool.i ; [#uses=1] br i1 %or.cond23.i.old, label %lor.end.i, label %for.inc lor.end.i: ; preds = %lor.rhs.i, %land.lhs.true3.i %tobool19.i = icmp eq i8 %conv1, 0 ; [#uses=0] br label %for.inc for.inc: ; preds = %for.inc, %lor.end.i, %lor.rhs.i, %land.lhs.true3.i br label %for.inc } declare i32 @safe()